| Arkema France Patent applications |
| Patent application number | Title | Published |
|---|
| 20120035389 | METHOD FOR PURIFYING THE AZEOTROPIC FRACTION GENERATED DURING THE SYNTHESIS OF N,N-DIMETHYL AMINOETHYL ACRYLATE - The invention relates to a method for producing N,N-dimethylaminoethyl acrylate by the transesterification reaction of an alykl acrylate by N | 02-09-2012 |
| 20120029139 | BLOCK COPOLYMERS HAVING ASSOCIATIVE GROUPS, AND ADHESIVE CONTAINING SAME - The present invention relates to a hot-melt adhesive that comprises a block copolymer having associative groups containing a nitrogen heterocyclic compound. The invention also relates to block copolymers having associative groups specifically adapted for implementation in a hot-melt adhesive | 02-02-2012 |
| 20120028117 | FLUORINATED BINDER COMPOSITE MATERIALS AND CARBON NANOTUBES FOR POSITIVE ELECTRODES FOR LITHIUM BATTERIES - The present invention relates to a positive electrode composite material for Li-ion battery, to the preparation method thereof, and to the use thereof in a Li-ion battery. The composite material according to the invention includes: a) at least one conductive additive including carbon nanotubes at a content between 1 and 2.5 wt %, preferably between 1.5 and 2.2 wt %, relative to the total weight of the composite material; b) an active electrode material capable of reversibly forming an insertion compound with lithium, having an electrochemical potential greater than 2V relative to the Li/Li | 02-02-2012 |
| 20120024353 | THERMOFORMABLE PHOTOVOLTAIC BACKSHEET - The invention relates to high Tg monolithic and multi-layer thermoformable film or sheet useful as a backsheet on a photovoltaic module (PV). A methacrylic-based material is preferred. The film or sheet is formed of a composition having a Tg greater than 110° C. The methacrylic composition may be a blend of a polymethyl methacrylate polymer and a miscible or semi-miscible high Tg polymer, or may be a copolymer containing primarily methyl methacrylate monomer units. The backsheet is optionally covered with a fluoropolymer or acrylic/fiuoropolymer covering on the outside (side facing the environment). The back-sheet can be clear, white, and/or pigmented. The film or sheet is especially useful in concentrating photovoltaic modules (CPV), and is also useful in thin film photovoltaic modules. | 02-02-2012 |
| 20120022301 | Process For The Preparation of Fluoroolefin Compounds - The subject of the invention is a process for the preparation of fluoroolefin compounds. It relates more particularly to a process for manufacturing a (hydro)fluoroolefin compound comprising (i) bringing at least one compound comprising from three to six carbon atoms, at least two fluorine atoms and at least one hydrogen atom, provided that at least one hydrogen atom and one fluorine atom are located on adjacent carbon atoms, into contact with potassium hydroxide in a stirred reactor, containing an aqueous reaction medium, equipped with at least one inlet for the reactants and with at least one outlet, in order to give the (hydro)fluoroolefin compound, which is separated from the reaction medium in gaseous form, and potassium fluoride, (ii) bringing the potassium fluoride formed in (i) into contact, in an aqueous medium, with calcium hydroxide in order to give potassium hydroxide and to precipitate calcium fluoride, (iii) separation of the calcium fluoride precipitated in step (ii) from the reaction medium and (iv) optionally, the reaction medium is recycled after optional adjustment of the potassium hydroxide concentration to step (i). | 01-26-2012 |
| 20120022291 | CATALYST FOR PRODUCTION OF ACROLEIN AND ACRYLIC ACID BY MEANS OF DEHYDRATION REACTION OF GLYCERIN, AND PROCESS FOR PRODUCING SAME - A process for converting glycerin into valuable chemical raw material. A catalyst for use in the production of acrolein and acrylic acid by a dehydration reaction of glycerin, which enables the production of acrolein and acrylic acid in high yield. Glycerin dehydration catalyst which mainly comprises a phosphorus-vanadium complex oxide that contains phosphorus and vanadium as the essential constituent elements. | 01-26-2012 |
| 20120017616 | Heat Transfer Method - The invention relates to a heat transfer method that uses a composition containing from 60 to 95 wt % of 1,1,1,3,3-pentafluoropropane and from 5 to 40 wt % of at least one hydrocarbon selected from n-pentane, isopentane and cyclopentane. The invention more particularly relates to a heat transfer method that successively includes the step of evaporating a refrigerant fluid, a compression step, the step of condensing said fluid at a temperature higher than or equal to 35° C., and preferably between 70° C. and 140° C., and the step of expanding said fluid, characterised in that the refrigerant fluid includes from 60 to 95 wt % of 1,1,1,3,3-pentafluoropropane and from 5 to 40 wt % of at least one hydrocarbon selected from n-pentane, isopentane and cyclopentane. | 01-26-2012 |
| 20120015411 | MANUFACTURE OF MALEIC ANHYDRIDE FROM RENEWABLE MATERIALS, MALEIC ANHYDRIDE OBTAINED, AND USES THEREOF - The present application relates to a process for manufacturing maleic anhydride that comprising the following steps: a) fermentation of renewable raw materials and optionally purification to produce a mixture comprising at least butanol; b) oxidation of the butanol to maleic anhydride at a temperature generally between 300° C. to 600° C., using a catalyst based on oxides of vanadium and/or molybdenum; c) isolation of the maleic anhydride obtained at the end of step b). It also relates to the maleic anhydride obtained from renewable raw materials, to the copolymers and compositions comprising said maleic anhydride and also uses of use of this maleic anhydride. | 01-19-2012 |
| 20110319675 | Catalytic Gas Phase Fluorination of 1233xf to 1234yf - The present invention provides a process for preparing 1234yf, comprising: (i) contacting 1233xf with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into a first stream comprising HCl, 1234yf and a second stream comprising HF, unreacted 1233xf and 245cb; (iii) recycling at least a part of the second stream at least in part back to step (i). The present invention also provides a process for preparing 1234yf, comprising: (i) contacting 1233xf with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into HCl and a stream containing the fluorinated products; (iii) separating said stream containing the fluorinated products into a first stream comprising 1234yf and a second stream comprising HF, unreacted 1233xf and 245cb; (iv) recycling at least a part of the second stream at least in part back to step (i). | 12-29-2011 |
| 20110319524 | Epoxy Acid Thermoset Resins and Composites that Can Be Hot-Fashioned and Recycled - Resins and thermoset composites comprising them, these materials being able to be hot-fashioned. These compositions resulting from placing at least one thermosetting resin precursor, this thermosetting resin precursor comprising hydroxyl functions and/or epoxy groups, and optionally ester functions, in contact with at least one hardener chosen from carboxylic acids, in the presence of at least one transesterification catalyst whose total molar amount is between 5% and 25% of the total molar amount of hydroxyl and epoxy contained in the thermosetting resin precursor. Process for manufacturing these materials, process for transforming and process for recycling these materials. New solid forms of resins and of thermoset composites that may be used in the implementation of these processes. | 12-29-2011 |
| 20110318517 | ADHESIVE COMPOSITION CONTAINING GRAFTED POLYETHYLENE - The invention relates to an adhesive composition comprising, relative to its total weight: from 1 to 40% of a polyethylene (A) grafted with a functional monomer or a blend of a polyethylene (A1) with a second polymer (A2) different from (A1), said blend of (A1) and (A2) being co-grafted with an unsaturated functional monomer, the content by weight of unsaturated functional monomer relative to (A) being in the range from 30 to 100000 ppm; from 25 to 98% of a non-grafted polyethylene (B) having a density in the range from 0.900 to 0.965; from 1 to 35% of an elastomeric product (C). The invention also relates to a multilayer structure comprising this composition, said structure being able to serve as protection of metal tubes used for the fabrication of oil pipelines and gas pipelines. | 12-29-2011 |
| 20110318515 | BIOMASS-DERIVED METHYL METHACRYLATE AND CORRESPONDING MANUFACTURING METHOD, USES AND POLYMERS - The invention relates to methyl methacrylate characterized in that at least one portion of the carbons thereof is biologically sourced and, more specifically, in that it contains between 0.2×10 | 12-29-2011 |
| 20110315915 | AZEOTROPE AND AZEOTROPE-LIKE COMPOSITIONS OF CHLOROTRIFLUOROPROPENE AND PENTANE - Provided are azeotrope or azeotrope-like compositions comprised of chlorotrifluoropropene, particularly 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) and iso-pentane, n-pentane, cyclo-pentane and mixtures thereof, and uses thereof. | 12-29-2011 |
| 20110315199 | Polyamide-Grafted Polymers, Photovoltaic Modules with a Backsheet Film Comprising a Polyamide-Grafted Polymer and Manufacturing Process and Use Thereof - One subject of the invention is the use of α film as a protective backsheet in a photovoltaic module, said film comprising at least one layer of a composition containing a polyamide-grafted polymer, this polyamide-grafted polymer comprising a polyolefin backbone containing a residue of at least one unsaturated monomer (X) and at least one polyamide graft, in which: • the polyamide graft is attached to the polyolefin backbone by the residue of the unsaturated monomer (X) that comprises a functional group capable of reacting via a condensation reaction with a polyamide having at least one amine end group and/or at least one carboxylic acid end group; • the residue of the unsaturated monomer (X) is attached to the backbone by grafting or copolymerization; said polyamide-grafted polymer comprising, relative to its total weight: • from 40 to 95% by weight of the polyolefin backbone comprising the unsaturated monomer (X); and • from 5 to 60% by weight of polyamide grafts, and the melting point or glass transition temperature of the polyamide grafts being greater than or equal to 85° C. The invention also relates to a process of manufacturing a photovoltaic module, to a photovoltaic module and also to the use of this module for producing electricity. | 12-29-2011 |
| 20110315189 | ACRYLIC PHOTOVOLTAIC MODULE BACKSHEET - The invention relates to an acrylic layer (in the form of a coating, film or sheet) useful as part of a photovoltaic module backsheet. The acrylic layer contains at least 40 percent of one or more acrylic polymers, including an acrylic polymer matrix and optionally acrylic impact modifiers. The acrylic polymer is preferably a polymer, copolymer, or terpolymer containing at least 50 weight percent of methylmethacrylate monomer units. The acrylic layer is flexible and optionally contains high levels of white pigment. It may also contain fluoropolymers such as polyvinylidene fluoride to improve weathering, processibility and film formation. The acrylic layer adheres to a polymer support layer such as polyethylene terephthalate (PET). A preferred substrate is PET that is pre-treated to improve adhesion, but unprimed PET can also be used. The backsheet provides excellent weatherability, environmental stability and reflectivity as part of a photovoltaic module. | 12-29-2011 |
| 20110313215 | Catalytic Gas Phase Fluorination of 243db to 1234yf - The invention provides a process for preparing 1234yf, comprising: (i) contacting 243db with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into a first stream comprising HCl, 1234yf and a second stream comprising HF, 1233xf and 245cb; (iii) recycling at least a part of the second stream at least in part back to step (i). The invention also provides a process for preparing 1234yf, comprising: (i) contacting 243db with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into HCl and a stream containing the fluorinated products; (iii) separating said stream containing the fluorinated products into a first stream comprising 1234yf and a second stream comprising HF, 1233xf and 245cb; (iv) recycling at least a part of the second stream at least in part back to step (i). | 12-22-2011 |
| 20110313214 | Hydro(chloro)fluoroolefins and Method for Preparation Thereof - A subject of the invention is a compound of formula (I) XCF | 12-22-2011 |
| 20110312084 | USE OF A TRANSPARENT COMPOSITION FOR PHOTOBIOREACTORS - The present invention relates to photobioreactors and more particularly to the use of a transparent composition based on at least one methacrylic polymer for constructing installations for the culture of photosensitive organisms. This composition can be in the form of films, plates, profiled elements or cylinders such as tubes. | 12-22-2011 |
| 20110305900 | COMPOSITION CONTAINING POLYPROPYLENE AND/OR A PROPYLENE COPOLYMER OBTAINED FROM RENEWABLE MATERIALS, AND USES THEREOF - The present application relates to a method for manufacturing a propylene polymer, including: a) fermenting and optionally purifying first renewable materials to produce an alcohol or an alcohol mixture, the alcohol or alcohol mixture including at least isopropanol and/or at least a mixture of ethanol and 1-butanol; b) dehydrating the resulting alcohol or the alcohol mixture to produce an alkene or alkene mixture in a first series of reactors, the alkene or alkene mixture containing at least propylene; c) polymerizing the propylene in a second reactor, optionally in the presence of a comonomer, so as to produce a propylene polymer; d) isolating the propylene polymer obtained in step c); and e) grafting the propylene polymer obtained from step d). The invention also relates to the grafted propylene polymer capable of being obtained by the method, to the compositions containing the polymer, as well as to the uses of the polymer. | 12-15-2011 |
| 20110303263 | USE OF A POLETHYLENE-BASED FILM IN A PHOTOVOLTAIC MODULE - The invention relates to the use in a photovoltaic module of a film of a composition as a backsheet or as an encapsulant, this composition comprising, with respect to the total weight of the composition: from 1 to 99% of a polyethylene having an ethylene whose level by weight is greater than or equal to 80% chosen from the homopolymers of ethylene and the copolymers of ethylene and another alpha-olefin; from 99 to 1% of a polyolefin B, other than A, carrying a reactive functional group X chosen from the anhydride carboxylic acids and epoxides. The invention further relates to a photovoltaic module comprising the film of the composition according to the invention and also a process for the manufacture of this module. | 12-15-2011 |
| 20110301316 | METHOD FOR MANUFACTURING BIOMASS-DERIVED METHYL METHACRYLATE - Process for the manufacture of methyl methacrylate by oxidation of methacrolein to methacrylic acid and esterification of the latter with methanol, characterized in that at least one fraction of at least one from among methacrolein and methanol in this reaction was obtained by a reaction or a sequence of reactions starting from biomass. | 12-08-2011 |
| 20110301295 | NOVEL COPOLYMERS WITH POLAR AND NON-POLAR OLEFIN BLOCKS - The present invention relates to copolymers with polar and non-polar olefin blocks with a variable polar monomer content of 0.1 mol % to 99.9 mol %. The invention also relates to a method for obtaining copolymers with olefin blocks and vinyl polar monomer blocks, said method using a single-component catalytic system made up of an organometallic complex containing a metal belonging to groups VIII to X. Said organometallic complex is advantageously active in the medium without adding cocatalyst. | 12-08-2011 |
| 20110300590 | Method for Synthesizing an Omega-Amino Acid or Ester from a Monounsaturated Fatty Acid or Ester - The invention relates to a method for synthesizing ω-aminoalkanoic acids or esters thereof from unsaturated natural fatty acids, passing through a monounsaturated dinitrile intermediate compound. The method of the invention is simple to carry out and, compared to other known methods, avoids the environmental constraints and economic disadvantages due to reaction by-products. | 12-08-2011 |
| 20110297889 | METHOD FOR MANUFACTURING A COMPOSITE MATERIAL OF SnO2 AND CARBON NANOTUBES AND/OR CARBON NANOFIBERS, MATERIAL OBTAINED BY THE METHOD, AND LITHIUM BATTERY ELECTRODE COMPRISING SAID MATERIAL - A method for manufacturing a composite material including tin oxide particles and a fibrillar carbon material, including synthesising tin hydroxide particles obtained from a tin salt by precipitation/nucleation in a water-alcohol medium, in the presence of the fibrillar carbon material and an acid, the fibrillar carbon material being nanotubes, carbon nanofibres, or a mixture of the two. The method can be used for the production of negative electrodes for lithium-ion batteries. | 12-08-2011 |
| 20110288194 | POLYAMIDE AND BIORESOURCED REINFORCEMENT COMPOSITIONS HAVING IMPROVED MECHANICAL PROPERTIES - One subject of the present invention is a composition that combines at least one polyamide having at least one MXD entity, MXD denoting meta-xylylenediamine or a mixture of meta-xylylenediamine and of para-xylylenediamine, with a bioresourced reinforcement. The invention also relates to the conversion of these compositions, by injection moulding or extrusion, into objects that have good mechanical properties, said objects corresponding to technical application specifications such as may be found, for example, in the automotive industry, construction, sport and in electrical or electronic fields. | 11-24-2011 |
| 20110287991 | METHOD FOR MANUFACTURING A BIOMASS-DERIVED METHYL METHACRYLATE - Process for the manufacture of methyl methacrylate by reaction of methyl propionate with one from formaldehyde, a formaldehyde/methanol mixture and methylal, characterized in that at least a fraction of at least one reactant involved in this reaction was obtained by a reaction or a sequence of reactions starting from biomass. | 11-24-2011 |
| 20110287204 | MANUFACTURE OF ETHYLENE/CARBOXYLIC ACID VINYL ESTER COPOLYMERS FROM RENEWABLE MATERIALS, COPOLYMERS OBTAINED AND USES - The present application relates to a process for the manufacture of copolymers of ethylene and of at least one vinyl ester, comprising the following steps: a) fermentation of renewable starting materials so as to produce at least one alcohol comprising ethanol; b) dehydration of the alcohol obtained so as to produce at least one alkene comprising ethylene and, optionally, purification of the alkene so as to obtain ethylene, c) copolymerization of the ethylene with at least one vinyl ester, d) isolation of the copolymer obtained. The application also relates to the copolymers of ethylene and of at least one vinyl ester in which the ethylene is at least partly obtained from renewable starting materials, and to uses thereof. | 11-24-2011 |
| 20110284181 | METHOD FOR HEATING AND/OR AIR-CONDITIONING IN A VEHICLE - The present invention relates to a composition 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and at least one compound selected from propane, propylene and ethylene, which can be used for refrigeration, air-conditioning and heating. The invention also relates to a method for heating and/or air-conditioning the passenger compartment of an automobile using a reversible cooling loop in which a refrigerant fluid including said composition flows. The method is particularly suitable for when the outdoor temperature is lower than −20° C. The method is also suitable for use in hybrid vehicles adapted for alternately operating by means of a thermal engine and an electric motor, as well as for electric vehicles. | 11-24-2011 |
| 20110281051 | USE OF AN EXPANDED GRAPHITE IN A POLYMER MATERIAL - The present patent application relates to the use of expanded graphite, the specific surface of which is comprised between 15 and 30 m | 11-17-2011 |
| 20110272274 | METHOD FOR PRODUCING HYDROGEN PEROXIDE - The present invention relates to a method for preparing an aqueous solution of hydrogen peroxide from oxygen, hydrogen and optionally water. The invention more particularly relates to a method for preparing an aqueous solution of hydrogen peroxide in which at least a portion of the reactor is cooled down to a temperature lower than 15° C. | 11-10-2011 |
| 20110260116 | THERMOPLASTIC AND/OR ELASTOMERIC COMPOSITE BASED ON CARBON NANOTUBES AND GRAPHENES - The present invention relates to a composite of carbon nanotubes and of graphenes in agglomerated solid form comprising:
| 10-27-2011 |
| 20110256454 | Masterbatch of carbon-based conductive fillers for liquid formulations, especially in Li-Ion batterries - The present invention relates to a masterbatch in agglomerated solid form comprising:
| 10-20-2011 |
| 20110251414 | PROCESS FOR THE AMMONOLYSIS OF 11-BROMOUNDECANOIC ACID - The invention relates to a process for the ammonolysis of 11-aminoundecanoic acid, carried out under conditions that make it possible to limit secondary reactions that produce impurities, especially secondary amine type reactions, while considerably reducing the reaction time. According to the invention, the process comprises the following steps: i) a step of dispersing 11-bromoundecanoic acid, molten or non-molten, in an aqueous solution of ammonia, and ii) an ammonolysis step comprising the reaction of 11-bromoundecanoic acid with excess ammonia water under conditions whereby the reaction medium is stirred and heated gradually so as to obtain 11-aminoundecanoc acid with total consumption of the 11-bromoundecanoic acid. | 10-13-2011 |
| 20110245513 | SYNTHESIS PROCESS OF POLYOL CARBONATE FROM POLYOLS, CONDUCTED IN USING A SOLVENT SELECTIVE FOR POLYOLS CARBONATES - The present invention relates to a synthesis process of polyol carbonate, such as glycerol carbonate, from polyols such as glycerol, propylene glycol or ethylene glycol and urea conducted in using a solvent selective for polyols (glycerol) carbonates. Said process comprises reacting polyol with urea in the presence of a catalyst, extracting produced NH | 10-06-2011 |
| 20110245422 | THERMOPLASTIC POLYMER SYSTEMS MODIFIED BY COPOLYMERS WITH FUNCTIONALISED BLOCKS - The present invention relates to thermoplastic polymers modified by means of acrylic block copolymers functionalized by hydrophilic monomers. The subject matter of the invention is a blend of polymers comprising, as matrix polymer, a thermoplastic material which comprises flexible segments of polyether or polyester type and comprising at least one acrylic block copolymer dispersed in said matrix polymer and miscible with the latter, said block copolymer comprising at least one hydrophilic monomer. The modified thermoplastic materials according to the invention maintain very good properties of transparency and, in addition, acquire new properties, in particular mechanical properties, such as a better mechanical strength in the molten state during conversion operations specific to thermoplastic materials, such as extrusion, blow molding or calendering operations. | 10-06-2011 |
| 20110245421 | METHOD FOR INCREASING POLYMER COMPATIBILITY - The invention relates to a method for increasing the compatibility between at least two polymers, which comprises: (a) selecting at least two immiscible polymers (A) and (B), at least one of which does not bear a nitrogenous heterocycle-based associative group, and (b) modifying the polymer (A) and/or the polymer (B) so as to obtain a blend of polymers (Pi) which are derived from the polymers (A) and (B) and which each bear nitrogenous heterocycle-based associative groups, said associative groups being present in sufficient amount for the polymers (Pi) to be more compatible with one another than the polymers (A) and (B). It also relates to the polymer composition that can be obtained according to this method. | 10-06-2011 |
| 20110241254 | THERMOPLASTIC RESIN-BASED COMPOSITION FOR MAKING SINGLE-LAYER SKINS OR COMPOSITES WITH SPECKLED APPEARANCE FOR PARTS OF MOTOR VEHICLE PASSENGER COMPARTMENT AND METHOD FOR OBTAINING SAME - The invention concerns a thermoplastic resin-based composition, for making single-layer or multilayer skins (or composite structures), having a speckled appearance, and a method for obtaining same. Said composition comprises: 10 to 99 wt. % of a compound or “matrix” of a polyvinyl chloride thermoplastic (PVC) resin; 0.5 to 90 wt. % of at least a compound or “inclusion” of a thermoplastic resin containing at least one colouring pigment: 0.5 to 20 wt. % of speckling agents selected among colouring pigments, metal particles or decorative flakes, glass beads, polymeric particles. | 10-06-2011 |
| 20110240330 | SEMICONDUCTING COMPOSITION FOR ELECTRIC CABLES - The present invention relates to an alkyl (meth)acrylate and unsaturated epoxide crosslinked ethylene polymer. The invention also relates to a semiconducting composition including a conducting compound and an alkyl(meth)acrylate and unsaturated epoxide crosslinked ethylene polymer, to a method for making the same, and to the use thereof in electric cables. | 10-06-2011 |
| 20110240254 | VEHICLE HEATING AND/OR AIR CONDITIONING METHOD - The invention relates to a method for the heating and/or air conditioning of the passenger compartment of an automobile using a reversible cooling loop in which flows a coolant containing 2,3,3,3-tetrafluoropropene. The method is particularly useful when outdoor temperature is lower than −15° C. The method can be used for hybrid automobiles designed for operating alternatively with a thermal engine and an electric motor. | 10-06-2011 |
| 20110236698 | PULVERULENT COMPOSITION FOR THE MANUFACTURE OF ARTICLES WITH A METALLIC APPEARANCE, WHICH IS STABLE OVER TIME AND SHOWS IMPROVED RESISTANCE TO METAL MARKING - The present invention relates to a pulverulent composition for the manufacture of articles having a metallic appearance that is stable over time and an improved resistance to pencilling, said composition comprising: from 50 to 99.9% by weight of at least one thermoplastic polymer, from 0.1 to 5% by weight of at least one effect pigment, from 0 to 0.3% by weight of at least one metallic pigment relative to the total weight of the composition. | 09-29-2011 |
| 20110233479 | Process for preparing an elastomeric composite material - The present invention relates to a process for preparing a composite material containing an elastomeric matrix and nanotubes, in particular carbon nanotubes, and also to the composite material thus obtained and to the use thereof for the manufacture of composite products. | 09-29-2011 |
| 20110232735 | THREE-LAYER FILM FOR A PHOTOVOLTAIC CELL - The invention relates to a multilayer film of A/B/C structure comprising: a first layer of composition A, comprising a fluoropolymer; a second layer of composition B, comprising a filled fluoropolymer; and a third layer of composition C, comprising a fluoropolymer, characterized in that the first and third layers have a melting point above 150° C., measured by DSC, and in that the transmittance in visible light is less than 30% for a multilayer film thickness of 25 μm. The invention also relates to the use of a fluoropolymer-based film preferably for a photovoltaic cell back panel, a high-performance textile or a metal, the film adhering to the substrate by means of an adhesive layer placed between the substrate and the film. | 09-29-2011 |
| 20110224454 | METHOD FOR THE SYNTHESIS OF AN OMEGA-AMINO ACID OR ESTER STARTING FROM A MONOUNSATURATED FATTY ACID OR ESTER - The invention relates to a method for the synthesis of ω-amino alkanoic acids or esters thereof starting from unsaturated natural fatty acids passing through an ω-unsaturated nitrile intermediate compound. | 09-15-2011 |
| 20110219791 | COMPOSITION INCLUDING 2,3,3,3-TETRAFLUOROPROPENE, METHOD FOR HEATING AND/OR AIR CONDITIONING A VEHICLE - The present invention relates to a composition including 2,3,3,3-tetrafluoropropene, difluoromethane and at least one compound chosen among propane, propylene and ethylene, suitable for being used for refrigeration, air-conditioning and heating. The present invention also relates to a method for heating and/or air conditioning the passenger compartment of an automobile using a reversible cooling loop containing a refrigerant including said composition. Said method is particularly suitable when the outside temperature is lower than −20° C. The method is also suitable for hybrid automobiles, which are designed to operate in alternation between a heat engine and an electric engine, as well as for electric vehicles. | 09-15-2011 |
| 20110214690 | Use of Alkane Sulphonic Acid for Rust Removal - The present invention relates to the use of at least one alkane sulphonic acid, with formula R—SO | 09-08-2011 |
| 20110213184 | Hydrogenation Catalyst, Particularly for Carbon Disulphide - The present invention relates to a hydrogenation catalyst, particularly useful for the hydrogenation of carbon disulphide (CS | 09-01-2011 |
| 20110213174 | PROCESS FOR MANUFACTGURING ACROLEIN FROM GLYCEROL - The subject of the present invention is a process for preparing acrolein by dehydration of glycerol in the presence of a catalyst system comprising oxygen, phosphorus and at least one metal chosen from vanadium, boron or aluminium. The process is preferably carried out in the gas phase in the presence of oxygen starting from aqueous solutions of glycerol. | 09-01-2011 |
| 20110212867 | DIMETHYLSULFOXIDE FORMULATION IN MIXTURE WITH ADDITIVE FOR LOWERING THE CRYSTALLIZATION POINT OF SAME, AND APPLICATIONS OF SAID MIXTURE - Use of at least one diol and/or of at least one triol as a dimethyl sulfoxide (DMSO) additive for lowering the crystallization point thereof. The DMSO formulation is used in combination with the abovementioned additive as a paint-stripping composition, a surface-cleaning composition, a graffiti-cleaning composition, a surface-cleaning composition in the microelectronics field, such as a photoresist stripper, a DMSO-based agrochemical composition, or as a constituent of an abovementioned composition, as a polymer-dissolving solvent, or as a constituent of a composition that is useful in the field of cosmetology or pharmacy. | 09-01-2011 |
| 20110206881 | SEMIAROMATIC POLYAMIDE COMPRISING A CHAIN ENDING - The invention relates to a copolyamide comprising at least two different units corresponding to the following general formulation: | 08-25-2011 |
| 20110203167 | USE OF MIXTURES OF ALKYLALKANOLAMINES AND ALKYLHYDROXYLAMINES AS STABILIZERS FOR ALKYL ESTER FUELS - A stabilized alkyl ester fuel is disclosed. The stabilized alkyl ester fuel comprises alkyl esters, an effective amount of an alkylalkanolamine, and an effective amount of an alkylhydroxylamine. The alkyl ester fuel is stabilized to oxidative degradation of the alkyl esters of unsaturated fatty acids found in alkyl ester fuels. | 08-25-2011 |
| 20110201852 | PROCESS FOR THE PREPARATION OF FLUOROOLEFIN COMPOUNDS - A subject-matter of the invention is a process for the preparation of fluoroolefin compounds. It relates more particularly to a process for the manufacture of a compound of formula (I) CF | 08-18-2011 |
| 20110201731 | METHOD FOR PREPARING A THERMOPLASTIC COMPOSITE MATERIAL CONTAINING NANOTUBES PARTICULARLY CARBON NANOTUBES - One subject of the present invention is a method for preparing a composite preferably containing 10 to 50% by weight of nanotubes, comprising:
| 08-18-2011 |
| 20110197602 | HEAT TRANSFER METHOD - The present invention relates to a method of heat transfer by means of a composition containing hydrochlorofluoroolefins. The subject matter of the present invention is more particularly a heat transfer method comprising, successively, a step of evaporation of a coolant fluid, a compression step, a step of condensation of said fluid at a temperature of greater than or equal to 70° C. and a step of expansion of said fluid, characterized in that that coolant fluid comprises at least one hydrochlorofluoroolefin. | 08-18-2011 |
| 20110195215 | SEMI-AROMATIC COPOLYAMIDE AND PROCESS FOR PREPARING SAME - The invention relates to a copolyamide comprising at least two units corresponding to the following general formula: | 08-11-2011 |
| 20110190554 | PROCESS FOR THE PREPARATION OF FLUORINATED COMPOUNDS - A subject-matter of the invention is a process for the preparation of 2,3,3,3-tetrafluoro-1-propene which comprises the following stages: (i) hydrogenation of hexafluoropropylene to give 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the preceding stage to give 1,2,3,3,3-pentafluoro-1-propene; (iii) hydrogenation of the 1,2,3,3,3-pentafluoro-1-propene obtained in the preceding stage to give 1,1,1,2,3-pentafluoropropane; and (iv) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage to give 2,3,3,3-tetrafluoro-1-propene. Stages (ii) and (iv) are carried out using a water and potassium hydroxide mixture with the potassium hydroxide representing between 58 and 86% by weight of the mixture and at a temperature of between 110 and 180° C. | 08-04-2011 |
| 20110190464 | METHOD FOR THE SYNTHESIS OF BIORESOURCED ACRYLIC ACID ESTERS - The present invention relates to a method for the synthesis of an acrylic acid ester of formula CH | 08-04-2011 |
| 20110189419 | POLYAMIDE, COMPOSITION COMPRISING SUCH A POLYAMIDE AND THEIR USES - The invention relates to a polyamide comprising at least two units having the following general formula: 4.Y in which: 4 denotes butanediamine, and Y represents a dicarboxylic acid chosen from a linear or branched aliphatic dicarboxylic acid, a cycloaliphatic diacid and an aromatic diacid, the dicarboxylic acid containing from 7 to 11 carbon atoms, the butanediamine contains carbon of renewable origin, except for the fact that when the polyamide is a copolyamide, it cannot contain 100% by mass of organic carbon derived from renewable raw materials relative to the total mass of polyamide carbon. The invention also relates to a composition comprising this polyamide and the use of this polyamide and of such a composition. | 08-04-2011 |
| 20110183143 | PVC COMPOSITION PREPARED FROM RENEWABLE RAW MATERIALS USED FOR DECORATING AN AUTOMOBILE INTERIOR - “The present invention relates to a novel PVC resin composition, produced such that the numerical ration of the renewable carbon in the composition relative to the total carbon in the composition is greater than or equal to 30%. Said composition can be used in the manufacture of automobile interior parts and thus meets all the necessary requirements for this use.” | 07-28-2011 |
| 20110183135 | TRANSPARENT FLAT ARTICLE MADE OF NANOSTRUCTURED ACRYLIC MATERIALS - The present invention relates to the field of nanostructured acrylic polymer materials having both very good optical properties and good mechanical and surface properties. The invention relates to an acrylic resin composition containing a PMMA matrix (component 1) having a glass transition temperature of greater than 0° C., dispersed in which is an acrylic block copolymer (component 2). Characteristically, the composition of the invention contains from 60 to 80% by weight of said PMMA matrix, and from 20 to 40% by weight of said block copolymer. According to another aspect, the invention relates to a transparent flat article containing the aforementioned acrylic resin composition, haying the following features: a thickness ranging from 300 to 900 microns, preferably from 400 to 700 micrometers; a light transmission at least equal to 91%; a haze of less than or equal to 2%; and no appearance of haze when the temperature rises to 80° C. | 07-28-2011 |
| 20110183098 | NOVEL ELASTOMER MATERIAL, AND METHOD FOR OBTAINING SAME - The invention relates to an elastomer material including flexible polymer chains containing crosslinking bridges having covalent bonds and crosslinking bridges having noncovalent bonds. The invention also relates to a method for preparing such elastomer material. | 07-28-2011 |
| 20110179973 | NEUTRALIZING AGENT FOR PAINTS - The invention relates to a method of neutralizing paints, that includes adding at least one associative neutralizing agent to a formulation such as a pigment concentrate, a white paint base or paint. The associative neutralizing agent includes at least one neutralizing group N and at least one nitrogenous associative group A bonded together by at least one “spacer” group Sp. The invention also relates to pigment concentrates and to paints containing at least one such associative neutralizing agent. | 07-28-2011 |
| 20110178324 | MANUFACTURE OF TERTIOBUTYL HYDROPEROXYDE FROM RENEWABLE MATERIALS, TERTIOBUTYL HYDROPEROXIDE THUS OBTAINED, AND USES THEREOF - The present application relates to a method for manufacturing tert-butyl hydroperoxide that includes the following steps: a) fermenting renewable raw materials and optionally purifying the same to produce a mixture containing at least butanol; b) dehydrating the butanol into butane; c) converting the butane into isobutene and optionally hydrating the isobutene to produce tert-butanol; d) reacting the product of step c) with hydrogen peroxide so as to produce tert-butyl hydroperoxide; and e) isolating the tert-butyl hydroperoxide. The invention also relates to tert-butyl hydroperoxide containing carbon atoms from renewable resources, to the compositions containing said tert-butyl hydroperoxide, and also relates to the use thereof as a polymerization initiator. | 07-21-2011 |
| 20110172387 | METHOD FOR INCREASING THE DIFFERENCE BETWEEN THE MELTING TEMPERATURE AND THE CRYSTALLIZATION TEMPERATURE OF A POLYAMIDE POWDER - The present invention relates to a method for reducing the crystallization temperature an the melting temperature of a polyamide powder resulting from the polymerization of at least one predominant monomer, in which the reduction in the crystallization temperature is greater than the reduction in the melting temperature, said method comprising a step of polymerization of said at least one predominant monomer with at least one different minor comonomer polymerized according to the same polymerization process as said at least one predominant monomer, said at least one minor comonomer being chosen from aminocarboxylic acids, diamine/diacid pairs, lactams and/or lactones, and said at least one minor comonomer representing from 0.1% to 20% by weight of the total blend of said monomers(s) and comonomer(s), preferably from 0.5% to 15% by weight of said total blend, preferably from 1% to 10% by weight of said total blend. | 07-14-2011 |
| 20110172352 | RIGID-MATRIX COMPOSITION-GRADIENT COPOLYMERS WHICH ARE SOLUBLE AND/OR DISPERSIBLE IN WATER AND IN ORGANIC SOLVENTS - The invention relates to composition-gradient copolymers, comprising:
| 07-14-2011 |
| 20110172138 | Dimethyl Disulphide Derived at least partially from Renewable Materials - One subject of the invention is a dimethyl disulphide in which the content of biocarbon is at least 1%. Another subject of the invention is processes for preparing this dimethyl disulphide. Yet another subject of the invention is the use of such a dimethyl disulphide for the manufacture of methanesulphonic acid. | 07-14-2011 |
| 20110171408 | Copolyamide, composition comprising such a copolyamide and their uses - The present invention relates to a copolyamide comprising at least two units and corresponding to the following general formula: | 07-14-2011 |
| 20110166293 | COMPOSITION CONTAINING (METH)ACRYLIC POLYMER AND COPOLYMER HAVING ASSOCIATIVE GROUPS - The present invention relates to a composition containing at least one (meth)acrylic polymer and at least one copolymer containing motifs from at least one first monomer (A), enabling compatibility with said (meth)acrylic polymer, and at least one second motif (B) carrying an associative group. The invention also relates to the use of such a copolymer having associative groups to improve the properties of a (meth)acrylic polymer. The invention also relates to uses of the abovementioned composition. | 07-07-2011 |
| 20110166282 | METHOD FOR PREPARING A POLYMER PARTICLE DISPERSION IN AN AQUEOUS MEDIUM - The invention relates to a process for the preparation of an aqueous dispersion of polymer particles in an aqueous medium employing a living macroinitiator requiring a reinitiation temperature of less than 100° C. | 07-07-2011 |
| 20110166278 | METHOD FOR IMPREGNATING CONTINUOUS FIBRES WITH A COMPOSITE POLYMER MATRIX CONTAINING A GRAFTED FLUORINATED POLYMER - The invention relates to a method for the impregnation of continuous fibers that comprises coating said fibers with a polymer matrix containing: (a) at least one fluorinated polymer grafted with at least one carboxylic polar function and (b) optionally at least one fluorinated nongrafted polymer. The invention also relates to the composite fibers that can be obtained by said method and to the use thereof. | 07-07-2011 |
| 20110166268 | HIGH PURITY MONOALKYLTIN COMPOUNDS AND USES THEREOF - The present invention relates to high purity monoalkyltin compounds, more specifically to alkyltin compound compositions containing monoalkyltin as major compound, and minor quantities of di- and/or trialkyltin compounds. The present invention also relates to the preparation processes of such high purity monoalkyltin compounds, as well as to the uses of said monoalkyltin compounds as chlorine-containing polymer-stabilisers, glass coating chemicals and catalysts, as well as articles comprising at least one polymer matrix and a high purity monoalkyltin compound. | 07-07-2011 |
| 20110163274 | ELECTRODE COMPOSITE, BATTERY ELECTRODE FORMED FROM SAID COMPOSITE, AND LITHIUM BATTERY COMPRISING SUCH AN ELECTRODE - An electrode composite and to its manufacturing process. The composite includes an active element, i.e. one exhibiting electrochemical activity, a conductive additive and a binder. The conductive additive is a mixture of conductive additives containing at least carbon nanofibres (CNFs) and at least carbon nanotubes (CNTs). Also, the negative electrodes for electrochemical devices of the lithium battery type including said composite and to the secondary (Li-ion) batteries provided with such a negative electrode. | 07-07-2011 |
| 20110160499 | Catalytic Gas Phase Fluorination of 243db to 1234yf - The invention provides a process for preparing 1234yf, comprising:
| 06-30-2011 |
| 20110160497 | Catalytic Gas Phase Fluorination of 1233xf to 1234yf - The present invention provides a process for preparing 1234yf, comprising:
| 06-30-2011 |
| 20110160491 | PROCESS FOR MANUFACTURING ACROLEIN OR ACRYLIC ACID FROM GLYCERIN - The subject of the present invention is a process for preparing acrolein by dehydration of glycerin, characterized in that the dehydration is carried out in the presence of a catalyst comprising mainly a compound in which protons in a heteropolyacid are exchanged at least partially with at least one cation selected from elements belonging to Group 1 to Group 16 of the Periodic Table of Elements. The process according to the invention permits to obtain acrolein at higher yield. | 06-30-2011 |
| 20110160419 | PRODUCTION OF VINYL PROPIONATE FROM RENEWABLE MATERIALS, VINYL PROPIONATE OBTAINED, AND USES THEREOF - The invention relates to vinyl propionate in which at least part of the carbon atoms are from a renewable source. The invention also relates to a method for producing vinyl propionate, and to the copolymers, compositions and uses of vinyl propionate. | 06-30-2011 |
| 20110155942 | Catalytic Gas Phase Fluorination of 1230xa to 1234yf - The invention is directed to a process for preparing 2,2,2,3-tetrafluoropropene (1234yf), comprising:
| 06-30-2011 |
| 20110152454 | PRODUCTION OF GRAFTED POLYETHYLENE FROM RENEW ABLE MATERIALS, THE OBTAINED POLYETHYLENE AND USES THEREOF - The invention relates to a method for production of grafted polyethylene comprising the following steps: a) fermentation of primary renewable material with optional purification to give at least one alcohol chosen from ethanol or a mixture of alcohols comprising ethanol; b) dehydration of the alcohol obtained to give in a first reactor at least one alkene selected from ethylene and mixtures of alkenes containing ethylene and optional purification of the alkene to give ethylene; c) polymerization, in a second reactor, of the ethylene to give polyethylene; d) isolation of the polyethylene obtained in step c); e) grafting the polyethylene with at least one grafting monomer selected from the unsaturated carboxylic acids or theifunctional derivatives thereof, the unsaturated dicarboxylic acids having 4-10 carbon atoms and the functional derivatives thereof being C | 06-23-2011 |
| 20110152446 | MIXTURE OF PEROXIDES FOR CROSSLINKING ELASTOMERS - The present invention relates to a mixture including at least O,O-tert-butyl-O-(2-ethylhexyl) monoperoxycarbonate and at least O,O-tert-amyl-O-2-ethylhexyl monoperoxycarbonate, where the O,O-tert-amyl-O-2-ethylhexyl monoperoxycarbonate is present in the mixture in an amount of from 0.001% to 45% by weight relative to the total weight of the mixture. The invention also relates to a crosslinkable composition that includes such a peroxide mixture and an elastomer; and to uses of the crosslinkable composition and mixture. | 06-23-2011 |
| 20110150743 | HYDROCYANIC ACID CONTAINING BIORESOURCE CARBON - The invention relates to a hydrocyanic acid containing bioresource carbon, and to a method for producing a raw material mainly containing the same by reacting ammonia with methane or methanol optionally in the presence of air and/or oxygen, characterized in that at least one of the reagents selected from ammonia, methane and methanol is obtained from a biomass. The invention also relates to the uses of the raw material for producing acetone cyanohydrin, adiponitrile, methionine or methionine hydroxyl-analog, and sodium cyanide. | 06-23-2011 |
| 20110147673 | METHOD OF MANUFACTURING COMPOSITE CONDUCTING FIBRES, FIBRES OBTAINED BY THE METHOD, AND USE OF SUCH FIBRES - The invention relates to a method of manufacturing fibres made of a composite based on a thermoplastic polymer and conducting or semiconducting particles, which includes a heat treatment, said heat treatment consisting in heating the composite, by progressively raising the temperature, having the effect of improving the conducting properties of the fibres obtained or of making the initially insulating fibres conducting. The invention also relates to the conducting fibres thus obtained and in particular to polyamide fibres and carbon nanotubes. | 06-23-2011 |
| 20110136980 | NOVEL CORE-SHELL IMPACT MODIFIERS FOR TRANSPARENT POLYMER MATRICES - Processes for making a core and core-shell copolymers are provided herein. Processes for making crosslinked elastomeric core particles includes emulsion polymerizing, in the presence of a radical polymerization initiator, a polymerization mixture containing at least one ethylenic elastomeric monomer, at least one crosslinking agent, and at least one sulfur-containing additive of the formula I below, where R and Z are defined herein. | 06-09-2011 |
| 20110136963 | METHOD FOR SNYTHESIZING AMPHIPHILIC GRADIENT COPOLYMERS SOLUBLE IN AN ALKALINE MEDIUM - The present invention relates to a process for the preparation of amphiphilic gradient copolymers by Controlled Radical Polymerization in the presence of a RAFT (Reversible Addition Fragmentation Transfer) agent. The copolymers of the invention exhibit low polydispersity indices and low viscosities in solution and are readily soluble in an alkaline medium. | 06-09-2011 |
| 20110136954 | BIOSOURCED ACROLEIN POLYMER, METHOD FOR OBTAINING SAME, AND USES THEREOF - The present invention relates to an acrolein polymer containing a carbon biosourced according to the ASTM D6866-06 standard, and to the preparation method thereof including a first step for dehydrating glycerol from a glycerol aqueous solution in the presence of an acid catalyst, followed by a polymerization of the obtained substance in the presence of an ionic catalyst or a free radical initiator. The polymer according to the invention has numerous uses in the fields of animal health, antibiotics, disinfection and sterilization, cosmetics, drilling sludge, paints and inks, and the paper and textile industries, and responds to certain sustainable development concerns. | 06-09-2011 |
| 20110135860 | BLENDS OF TRANSPARENT AMORPHOUS POLYAMIDES BASED ON DIAMINES AND ON TETRADECANEDIOIC ACID AND SEMICRYSTALLINE POLYAMIDES - The present invention relates to a transparent amorphous polyamide which results from the condensation of at least one diamine chosen from aromatic, arylaliphatic and cycloaliphatic diamines, of tetradecanedioic acid or of a mixture comprising at least 50 mol % of tetradecanedioic acid and at least one diacid chosen from aliphatic, aromatic and cycloaliphatic dicarboxylic acids. The invention also relates to a composition comprising, by weight, 1 to 100% of the preceding polyamide and 99 to 0% of a semicrystalline polyamide. The invention also relates to the objects composed of the composition of the invention, such as panels, films, sheets, pipes, profiles or objects obtained by injection moulding. The invention also relates to objects covered with a transparent protective layer composed of the composition of the invention. | 06-09-2011 |
| 20110135859 | POLYMER MATERIAL CONTAINING CHAINS BEARING IMIDAZOLIDONE FUNCTIONS - The invention concerns a polymer material consisting of macromolecular chains bound by hydrogen bonds, wherein: the macromolecular chains consist of a polymer skeleton whereon is fixed by at least one covalent bond a modifying agent, the modifying agent comprising, assembled in a common molecule, one or more associative groups capable of being bound by hydrogen bonds and one or more reactive groups capable of forming covalent bonds with the polymer skeleton, at least one of the associative groups of the modifying agent is an imidazolidone heterocycle, the macromolecular chains bear on average, 1 to 10 imidazolidone groups per chain. The average number of imidazolidone groups to be introduced into the macromolecular chains depends both on the average mass of said chains and the final properties desired for the material. | 06-09-2011 |
| 20110129636 | Block Copolymer Containing a Photoactive Monomer Bearing a Photoisomerizable Group, Use Thereof in a 3D Optical Memory - The invention relates to a block copolymer comprising:
| 06-02-2011 |
| 20110124913 | METHOD FOR PRODUCING BIORESOURCED PROPIONIC ACID FROM GLYCEROL - The invention relates to a method for producing bioresourced propionic acid from glycerol. The invention also relates to a composition comprising more than 85 mass % of bioresourced propionic acid, and to the use of the propionic acid obtained from the method as a solvent, as a food preservative, for producing herbicide or for preparing vinyl propionate. | 05-26-2011 |
| 20110111208 | USE OF AN ENCAPSULATED ADHESION PROMOTER IN AN AQUEOUS ADHESIVE JOINT BONDING TWO SUBSTRATES, AT LEAST ONE OF WHICH COMPRISES A (TPE-PA) MATERIAL - “The present invention relates to the use of an encapsulated adhesion promoter in an effective amount in an aqueous adhesive joint, said aqueous adhesive joint being intended to bond a surface of a first substrate (S1) to a surface of a second substrate (S2), at least one of said two substrates comprising a material (TPE-PA) comprising at least one thermoplastic elastomer (TPE) and/or at least one polyamide (PA), said adhesion promoter (P) comprising at least one organic molecule having at least one isocyanate function blocked by encapsulation of said organic molecule.” | 05-12-2011 |
| 20110111154 | POLYAMIDE, COMPOSITION COMPRISING SUCH A POLYAMIDE, AND USES THEREOF - The invention relates to a polyamide comprising at least one repeat unit corresponding to the general formulation: X·Y in which: X represents a cycloaliphatic diamine and Y represents an aliphatic dicarboxylic acid chosen from dodecanedioic (C | 05-12-2011 |
| 20110105809 | PROCESS FOR THE PURIFICATION OF 2,3,3,3-TETRAFLUORO-1-PROPENE (HFO-1234YF) - The subject of the invention is a process for the purification of 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf). More particularly, it relates to a purification process in which 2,3,3,3-tetrafluoro-1-propene, comprising impurities based on halogen compounds, is brought into contact with an adsorbent, preferably molecular sieves and advantageously molecular sieves having a pore opening with an average diameter between 5 and 11 Å, preferably between 5 and 9 Å. | 05-05-2011 |
| 20110105774 | METHOD FOR SYNTHESISING 9-AMINONONANOIC ACID OR THE ESTERS THEREOF FROM NATURAL UNSATURATED FATTY ACIDS - The invention relates to a method for synthesizing 9-aminononanoic acid or the esters thereof from natural unsaturated fatty acids, comprising at least one step of metathesis of the natural fatty acid and an oxidation step by oxidative cleaving. Said synthetic method uses widely available renewable starting materials and hence economical. | 05-05-2011 |
| 20110104764 | METHOD FOR SYNTHESISING OMEGA-AMINO-ALKANOIC ACIDS OR THE ESTERS THEREOF FROM NATURAL FATTY ACIDS - The invention relates to a method for synthesizing ω-amino-alkanoic acids or the esters thereof from mono-unsaturated natural fatty acids comprising at least one step of forming the unsaturated diacid corresponding to the original fatty acid. | 05-05-2011 |
| 20110104044 | DIRECT SYNTHESIS OF AQUEOUS HYDROGEN PEROXIDE SOLUTION AT THE SITE OF A PAPER MILL - The invention relates to a plant for producing hydrogen peroxide by direct synthesis (i.e. hydrogen reacts with oxygen in the presence of a catalyst), which is on-site at a paper mill. The invention relates to a method for manufacturing hydrogen peroxide by direct synthesis from hydrogen originating from the recovery of the spent liquor during the manufacture of wood pulp or cellulose pulp. | 05-05-2011 |
| 20110089366 | HYDROFLUOROOLEFIN COMPOSITIONS - The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 10 to 90% by weight, of 2,3,3,3-tetrafluoropropene, 5 to 85% by weight of HFC-134a and 2 to 20% by weight of HFC-152a. | 04-21-2011 |
| 20110084228 | HYDROFLUOROOLEFIN COMPOSITIONS - The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 2 to 55% by weight, of 2,3,3,3-tetrafluoropropene, 2 to 55% by weight of HFC-152 | 04-14-2011 |
| 20110082319 | Method for producing acrolein by means of dehydration of glycerol - The invention relates to a method for the synthesis of acrolein by means of dehydration of the glycerol in the presence of a solid acid catalyst having a Hammett acidity of less than +2, such as sulfated zirconium oxides, phosphated zirconium oxides, tungstated zirconium oxides, silicated zirconium oxides, sulfated tin or titanium oxides, phosphated aluminas or silicas, doped iron phosphates, and phosphotungstic or silicotungstic acid salts placed in a reactive medium comprising a gaseous phase containing between 1 and 3000 ppm of an acid compound according to the Pearson classification, selected, for example, from SO3, SO2, and NO2, the dehydration reaction being carried out either in a gaseous phase or in a liquid phase. | 04-07-2011 |
| 20110081553 | MELT IN PLACE BINDERS FOR BINDING PARTICULATE FILLERS TO SUBSTRATES - The invention relates to the use of a melt-in-place acrylic binder that is applied to a substrate in the form of a powder, followed by a fusing together of the binder powder by heat or radiation. Particulate filler is present either on the substrate, mixed with the binder powder, or admixed into the binder powder prior to fusion. The fused binder helps adhere the particulate fillers to the substrate, and may or may not cover the particulate filler. | 04-07-2011 |
| 20110071322 | METHOD FOR THE SYNTHESIS OF DIALKOXY ALKANES BY MEANS OF THE SELECTIVE OXIDATION OF ALCOHOLS - The invention relates to a method for the synthesis of dialkoxyalkanes by means of the partial selective oxidation of a light alcohol. According to said method, the light alcohol is oxidised in the presence of molecular oxygen or a gas containing molecular oxygen, and a solid oxidation catalyst based on at least one metal in a reactive medium comprising a gaseous phase containing an acid compound according to the Pearson classification, having a pKa of less than 6.3 in solution in water. The reaction is carried out in a vapour or in a liquid phase. | 03-24-2011 |
| 20110065866 | Composition containing a halogenated vinyl polymer and a copolymer bearing associative groups - The present invention relates to a composition comprising: (a) at least one halogenated vinyl polymer and (b) at least one copolymer containing (i) units derived from a first monomer (A) rendering said copolymer compatible with said halogenated vinyl polymer and (ii) units derived from a second monomer (B) bearing at least one given associative group. The present invention also relates to the use of such a copolymer bearing associative groups, for improving certain properties of a halogenated vinyl polymer. The invention finally relates to the uses of the aforementioned composition. | 03-17-2011 |
| 20110065860 | METHOD FOR PREPARING A BLEND OF HALOGENATED POLYMER AND OF COPOLYMER BEARING ASSOCIATIVE GROUPS - The present invention relates to a method of preparing a polymer resin based on a halogenated vinyl polymer and a copolymer bearing associative groups, comprising the steps that consist in forming a latex of each of these polymers, blending said latices, then isolating and drying the polymers contained in said latices in order to form a pulverulent resin. The present invention also relates to said resin, to a pulverulent composition containing said resin, and also to the use of this composition for manufacturing rigid or plasticized materials. | 03-17-2011 |
| 20110060171 | Process For The Manufacture Of Pentafluorethane - The present invention relates to a process for the manufacture of pentafluoroethane. It more particularly relates to a process for the manufacture of pentafluoroethane by gas-phase fluorination of perchloroethylene (PER) in the presence of a catalyst, characterized in that (i) the reaction of the PER with HF is carried out with an HF/PER molar ratio of greater than or equal to 20 and a pressure of greater than 5 bar absolute, and that (ii) the stream leaving this reaction step is recycled directly to the reaction step after separation of pentafluoroethane and of HCl. | 03-10-2011 |
| 20110052805 | METHOD AND SYSTEM FOR DEPOSITING A METAL OR METALLOID ON CARBON NANOTUBES - The invention relates to a method and a system for depositing a metal or a metalloid on carbon nanotubes (NTC). The method of the invention comprises homogenising an NTC powder in a reactor, and depositing said metal or metalloid on the homogenised NTC powder using a chemical vapor deposition technique implemented inside the reactor from a precursor comprising an alkyl of said metal or metalloid. The method can be used for the production of nanostructured SiC at the surface of the NTC by Si deposition on said NTC. | 03-03-2011 |
| 20110049423 | PREPARATION OF ALKYLIMIDAZOLIDONE (METH)ACRYLATES IN WATER - The invention relates to special (methyl)acrylaic monomers and concerns more particularly an enhanced process for preparing solutions of alkylimiozolidone (meth)acrylates in water solutions of alkylimidazolidone (meth)acrylates in a light (meth)acrylate. | 03-03-2011 |
| 20110046407 | PROCESS FOR PREPARING ALKOXYAMINES RESULTING FROM BETA-PHOSPHORATED NITROXIDES - The invention relates to an improved process for preparing alkoxyamines resulting from β-phosphorated nitroxides corresponding to the formula (I): | 02-24-2011 |
| 20110034589 | OLEFINIC THERMOPLASTIC POLYMER COMPOSITIONS WITH FILLERS OF NANOMETER SCALE IN THE FORM OF MASTERBATCHES - The invention relates to thermoplastic polymer compositions in the form of masterbatches, comprising a matrix of an olefinic copolymer obtained from olefinic monomers and at least one alkyl(meth)acrylate monomer, in which exfoliable organophilic fillers of the lamellar type are dispersed, such as silicates, characterized in that after complete dispersion, the fillers are of nanometer scale with a content of at least 20% by weight with relation to the composition. The invention is further of application for the production of polymeric materials particularly of the polyethylene type, with fillers, the thermomechanical and barrier properties of which are improved. | 02-10-2011 |
| 20110033665 | USE OF A MICROCRYSTALLINE POLYAMIDE TO OBTAIN A PARTICULAR SURFACE FINISH - The present invention relates to the use of a microcrystalline polyamide for obtaining an object having all or part of its outer surface formed from this microcrystalline polyamide and having a particular surface finish, in which:
| 02-10-2011 |
| 20110033362 | Process for Producing Hydrocyanic Acid - The present invention relates to an improved process for producing hydrocyanic acid by reaction of ammonia with methane in which a small amount of at least one sulphur-containing compound corresponding to the general formula R S (S) | 02-10-2011 |
| 20110031155 | FLEXIBLE SEMICRYSTALLINE POLYAMIDES - The invention relates to a multilayer structure in which the inner layer is in contact with petrol or diesel fuel and comprising, in succession from the outside inwards:
| 02-10-2011 |
| 20110028760 | METHOD FOR THE REACTIVE VAPORIZATION OF GLYCEROL - The subject of the present invention is a method for the reactive vaporization of aqueous solutions of glycerol in a fluidized bed containing a reactive solid. The method of the invention makes it possible to simultaneously vaporize an aqueous solution of glycerol, to remove the impurities that are present in this solution or that are generated during the evaporation, and to carry out the dehydration reaction of the glycerol to acrolein and/or the oxydehydration reaction of the glycerol to acrylic acid. | 02-03-2011 |
| 20110024678 | ORGANIC-SULPHIDE COMPOSITION WITH MASKED ODOUR - The present invention relates to the masking of the odour of organic sulphides and more particularly that of alkyl sulphides or of dialkyl sulphides, especially dimethyl sulphide, and also of oxides thereof, and especially of dimethyl sulphoxide, by addition, to said organic sulphides, of at least one odour-masking agent comprising at least one monoester, at least one di- or triester, at least one alcohol, at least one ketone and, optionally, at least one terpene. | 02-03-2011 |
| 20110021849 | Process For The Preparation of Fluorinated Compounds - A subject-matter of the invention is a process for the preparation of 2,3,3,3-tetrafluoro-1-propene comprising the following stages: (i) hydrogenation of hexafluoropropylene to give 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the preceding stage to give 1,2,3,3,3-pentafluoro- | 01-27-2011 |
| 20110021661 | COUPLING AGENT FOR ELASTOMERIC COMPOSITION COMPRISING A REINFORCING FILLER - A method of decreasing the roiling resistance of a tire formed from a sulfur-vulcanized elastomeric by combining at least one diene elastomer and at least one reinforcing filler, with an effective amount of a coupling agent consisting of a combination of:
| 01-27-2011 |
| 20110017957 | METHOD OF MANUFACTURING CONDUCTIVE COMPOSITE FIBRES WITH A HIGH PROPORTION OF NANOTUBES - This invention relates to a method of obtaining vinyl alcohol homo- or copolymer-based conductive composite fibres with a high proportion of nanotubes, particularly carbon nanotubes, which are capable of ensuring thermal and/or electric conduction. It likewise relates to the conductive composite fibres obtainable by this method as well as the uses thereof. | 01-27-2011 |
| 20110015452 | METHOD FOR PREPARING FLUORINATED COMPOUNDS - The invention relates to a method for selective dehydrofluorination on a mixed catalyst based on chromium and nickel on a carrier based on aluminium. The invention is used for the synthesis of 2,3,3,3-tetrafluoro-1-propene and 1,2,3,3,3-pentafluoro-1-propene. | 01-20-2011 |
| 20110005974 | HYDROTREATING CATALYST SULPHIDING AGENT AND ITS USE FOR IN SITU AND EX SITU PRESULPHIDATION - The present invention relates to a sulphiding agent for a hydrotreating catalyst which makes possible faster sulphiding of the catalyst but which also makes possible to very significantly limit solid deposits, in particular of sulphur. | 01-13-2011 |
| 20110003872 | MATERIAL FORMED FROM DENDRITIC MOLECULES CONTAINING ASSOCIATIVE GROUPS - The present invention relates to a material comprising dendritic molecules each constituted of fragments that are at least bifunctional and of fragments that are at least trifunctional joined together by ester or thioester bridges, alone or in combination with amide or urea bridges, said bridges being formed from two functions carried by different fragments, said molecules containing, on the fragments located at the ends of the dendritic branches, associative end groups capable of forming associations with one another by hydrogen bonds and joined covalently to the functions that are not involved in said bridges. It also relates to the method of production thereof, as well as to its uses and to compositions, notably cosmetic, containing this material. | 01-06-2011 |
| 20100318012 | BACTERIOSTATIC TEXTILE BASED ON POLYAMIDE 11 - The present invention relates to a bacteriostatic textile material of polyamide 11 where said polyamide 11 has an inherent viscosity of from 0.5 to 1.7 and contains no impurities with a diameter greater than 5 μm. The bacteriostatic textile material is useful in the fields of medicine, hygiene, baggage, clothing manufacture, clothing, household equipment and goods, upholstery, carpets, automobiles, industry, notably industrial filtration, agriculture and/or building construction. | 12-16-2010 |
| 20100317892 | METHOD FOR PREPARING (METH)ACRYLIC ANHYDRIDE - The present invention relates to an improved method for preparing (meth)acrylic anhydride (A(M)A | 12-16-2010 |
| 20100316795 | POLYAMIDE-BASED POWDER AND ITS USE FOR OBTAINING AN ANTIBACTERIAL COATING - The present invention relates to a method of covering a metal article with a film formed from the melting of a thin layer of powder comprising: physically blending 99.8 to 97% by weight of at least one polyamide and 0.2 to 3% by weight of an inorganic biocide species consisting of a soluble ceramic in which silver ions are encapsulated to form a powder blend composition; contacting said metal article with said powder composition blend to form a thin layer of said powder on the article; melting said powder blend composition onto said metal article to form a thin coating film; and cooling said coated article; where the powder blend composition is free of zinc compounds. | 12-16-2010 |
| 20100305370 | METHOD FOR PREPARING 2,3,3,3-TETRAFLUORO-1-PROPENE - The invention relates to a gas-phase continuous method for preparing 2,3,3,3-tetrafluoro-1-propene, said method comprising the following steps: (i) hydrogenation of hexafluoropropylene to form 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the previous step to 1,2,3,3,3-pentafluoropropene-1; (iii) hydrogenation of the 1,2,3,3,3-pentafluoropropene-1 obtained in the previous step to form 1,1,1,2,3-pentafluoropropane; and (iv) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the previous step to form 2,3,3,3-tetrafluoro-1-propene. | 12-02-2010 |
| 20100305354 | METHOD FOR THE SYNTHESIS OF DIACIDS OR DIESTERS FROM NATURAL FATTY ACIDS AND/OR ESTERS - The invention relates to a process for the synthesis of diacids or diesters of general formula ROOC—(CH | 12-02-2010 |
| 20100305334 | METHOD FOR PREPARING A MATERIAL FORMED FROM ARBORESCENT-BRANCHED MOLECULES COMPRISING ASSOCIATIVE GROUPS - The present invention relates to a method of preparing a material formed from arborescent-branched molecules comprising associative groups that includes the following successive steps: (a) the reaction of at least one at least trifunctional compound (A) bearing first and second functional groups with at least one bifunctional compound (B), the functional groups of which are capable of, reacting with the first functional groups of the compound (A); and (b) the reaction of the compound(s) obtained in step (a) with at least one compound (C) bearing, on the one hand, at least one reactive group capable of reacting with the second functional groups of (A) and; on the other hand, at least one given associative group | 12-02-2010 |
| 20100305232 | GRAFTING ONTO A POLYAMIDE POWDER BY GAMMA-IRRADIATION - The subject of the invention is a process for producing polyamide, copolyamide, polyolefin, copolyester amide or fluorocarbon resin powder particles on to the surface of which has been grafted at least one functionalized grafting monomer, characterized in that it comprises:
| 12-02-2010 |
| 20100300759 | DRILLING FLUID CONTAINING CARBON NANOTUBES - The present invention relates to a viscoelastic drilling fluid for drilling in underground rock formations, comprising
| 12-02-2010 |
| 20100298487 | EXTRUSION AGENT BASED ON A HETEROGENEOUS PVDF - The invention relates to an extrusion agent comprising: at least one heterogeneous PVDF (A), in other words a copolymer of VDF and at least one comonomer of VDF, comprising by weight at least 50%, advantageously at least 75%, of VDF which has a melting point Tm (expressed in ° C.)>172-549 m, preferably >1.1×(172-549 m), where m denotes the overall molar percentage of comonomer(s); and at least one interface agent (B), which are optionally diluted in a polyolefin (C). The heterogeneous PVDF preferably has a Tm of between 160 and 172° C. Advantageously it is also a VDF-HFP copolymer containing, by weight, from 88% to 92% of VDF and from 8% to 12% of HFP. The extrusion agent is used to reduce or eliminate the surface defects which arise during the extrusion of a thermoplastic resin (D). This resin may be a polyolefin, a styrenic resin, a polyester or a PVC. Optionally it may also be filled, i.e., may contain dispersed organic or inorganic particles. | 11-25-2010 |
| 20100274038 | METHOD FOR SYNTHESIS OF ACROLEIN FROM GLYCEROL - The invention provides a technology for producing acrolein from glycerol while maintaining high reagent partial pressures, which leads to higher yield. The invention more particularly relates to a method for producing acrolein from glycerol that comprises the intermediate step of forming glycerol and acrolein cyclic acetals. | 10-28-2010 |
| 20100273965 | POLYMERIC ADDITIVES OBTAINED BY SALIFICATION OF COPOLYMERS - The present invention relates to a salified copolymer that can be obtained by salification, in an aqueous medium, using at least one amine containing at least one nitrogenous heterocyclic group, of a copolymer obtained from at least one cyclic anhydride-based or carboxylic acid-based monomer and from at least one styrene-based monomer, such as a styrene/maleic anhydride (SMA) copolymer. It also relates to the process for producing this salified copolymer, to a composition containing same, and also to the use of this composition for surface-treating, in particular coating, sizing and finishing, paper or cardboard. | 10-28-2010 |
| 20100270820 | ELASTOMER THERMOPLASTIC MIXTURES AND COMPOSITIONS HAVING IMPROVED PROPERTIES, METHOD OF MAKING SAID COMPOSITIONS AND APPLICATIONS THEREOF - The mixture of the invention contains, for 100 parts in weight of (A)+(B): (A) 10 to 90 parts in weight of at least one non-nanostructured olefinic thermoplastic polymer; (B) 90 to 10 parts in weight of a formulation of at least one elastomer having unsaturated double bonds and capable of reacting with a cross-linking or vulcanization agent, said formulation containing a crosslinking or vulcanization system of said elastomer(s), at least one plasticizer, and the standard additives present in elastomer formulations; (C) up to 100 parts in weight, relative to (A)+(B), of at least one copolymer grafted with polyamide blocks, said copolymer comprising a polyolefin trunk and at least 1.3 polyamide grafts on said trunk in average, and having a nanostructured organization, wherein said grafts are attached to the trunk by the rest of an unsaturated monomer (X) having a function capable of reacting with a polyamide with an amine end; and rest of said unsaturated monomer (X) being attached on the trunk by grafting or copolymerization from its double bond thereof, and wherein (A) and (B) in the mixture can already have been combined together by the crosslinking or vulcanization dynamic method in order to provide a crosslinked or vulcanized thermoplastic composition. | 10-28-2010 |
| 20100266858 | COEXTRUSION BINDERS ON A RENEWABLE/BIODEGRADABLE BASIS - The invention relates to coextrusion binders including renewable and/or biodegradable polymers having good adhesion properties: at least one renewable and/or biodegradable polymer (A) grafted with a functional monomer including at least one reactive function, the grafting ratio being <1% in weight of the grafted polymer (A); at least one non-grafted renewable and/or biodegradable polymer (B) identical to (A) or compatible with (A) optionally a softener (C); and optionally a starch-based material (D). The invention also relates to multilayered structures including the binder of the present invention, in which the layers are preferably made of renewable and/or biodegradable compounds. The multilayered structures are advantageously useful in the field of food packaging. | 10-21-2010 |
| 20100264376 | Process for preparing an elastomeric composite material with a high content of nanotubes - The present invention relates to a process for preparing, in a co-kneader, a composite material containing a thermosetting elastomeric resin base and carbon nanotubes. | 10-21-2010 |
| 20100255329 | COPOLYMERS(S) LATEX, METHOD FOR PREPARING SAME AND USE THEREOF FOR COATING PAPER AND CARTON - The invention relates to copolymer(s) latexes prepared from vinylic monomers, non-conjugated dienes and optionally comonomers, particularly acrylic ones, in the presence of at least one chain transfer agent of the following formula. | 10-07-2010 |
| 20100249366 | MIXTURE OF DODECANETHIOLS, METHOD FOR THE PRODUCTION AND USE THEREOF - A radical polymerization process for the in which a tert-dodecyl mercaptan prepared by reaction of hydrogen sulfide with tri(n-butene) in the presence of a catalyst as chain-transfer agent. | 09-30-2010 |
| 20100243965 | Process for preparing a thermosetting composite material with a high nanotube content - The present invention provides a process for preparing a composite material containing from 15% to 60% by weight of nanotubes, comprising:
| 09-30-2010 |
| 20100234539 | POLYAMIDE, POLYESTER AND POLYETHER BLOCK COPOLYMER - The subject of the invention is a segmented block copolymer comprising polyamide blocks, polyester blocks and polyether blocks, of general formula: | 09-16-2010 |
| 20100230635 | Glycerol Vaporization Method - The subject matter of the present invention relates to a vaporization method of aqueous glycerol solutions in a fluidized bed containing an inert solid. The invention provides a method for vaporizing, in a single step, an aqueous glycerol solution and simultaneously eliminating the impurities present in this solution or generated during the evaporation. | 09-16-2010 |
| 20100229898 | METHOD FOR CLEANING SURFACES OF POLYOLEFIN-BASED MATERIALS SOILED WITH FOOD, PARTICULARLY DAIRY PRODUCTS - The invention relates to a method for cleaning surfaces of polyolefin-based materials soiled with food, particularly dairy products. More specifically, the invention relates to a method for cleaning materials based on one or more halogenated or non-halogenated polyolefins and soiled with food, particularly dairy products, which method is particularly safe for the environment, but also for the soiled polyolefin-based material with minimal wear and tear. According to the invention, the soiled material is brought into contact with an aqueous composition based on alkane sulfonic acids having between 1 and 4 carbon atoms. | 09-16-2010 |
| 20100222443 | BLOWING AGENT COMPOSITION - A subject-matter of the present invention is a blowing agent composition comprising an organic solvent with a boiling point, at atmospheric pressure, of greater than 0° C. and having a low GWP and at least one compound (C) chosen from haloketones, fluoroacids, fluoroesters, fluoroamines, (hydro)fluoroethers, (hydro) fluorothioethers, (hydro)fluoroolefins, cyclic (hydro)fluorocarbons and iodofluoro(hydro)carbons. | 09-02-2010 |
| 20100221553 | ADHESION PROMOTER INTENDED FOR APPLICATION TO A THERMOPLASTIC ELASTOMER POLYMER SUBSTRATE AND CORRESPONDING PROCESSES FOR SURFACE TREATMENT AND ADHESIVE ASSEMBLY - Use, as adhesion promoter intended for application to the surface of a substrate S | 09-02-2010 |
| 20100219371 | COMPOSITIONS BASED ON ALKYLIMIDAZOLIDONE (METH)ACRYLATES - The invention relates to special (meth)acrylic monomers, more particularly to solutions of alkylimidazolidone (meth)acrylates in heavy (meth)acrylic esters, and also to preparation thereof from solutions of alkylimidazolidone (meth)acrylates in water or in light (meth)acrylic esters. The solutions of the invention are particularly advantageous in UV-radiation-polymerizing or electron-beam-polymerizing paint or varnish applications | 09-02-2010 |
| 20100215701 | COSMETIC COMPOSITION COMPRISING A FINE POWDER - The present invention relates to cosmetic compositions used in the care and make-up field. This composition mainly comprising a continuous aqueous phase, a fatty phase and a fine and porous pulverulent copolyamide powder phase, is in the form of creamy, liquid or gelled compositions. This is in particular an emulsion, but it may also be a two-phase formulation or composition in which the fatty phase and aqueous phase are separate. The invention more particularly relates to cosmetic care and/or make-up compositions having a continuous aqueous phase in the case of an oil-in-water emulsion. | 08-26-2010 |
| 20100210884 | PROCESS FOR PRODUCING PENTAFLUOROETHANE - The present invention relates to a process for producing pentafluoroethane. More particularly, the subject of the invention is a continuous process for producing pentafluoroethane comprising (i) a step of fluorinating perchloroethylene (PER) with hydrofluoric acid, in the gas phase, in the presence of a catalyst, (ii) a step of separating the products issuing from step (i) in order to give a fraction of light products and a fraction of heavy products, comprising hydrofluoric acid, unreacted perchloroethylene and under-fluorinated products, and (iii) a step of pretreating the fraction of heavy products before recycling to step (i). | 08-19-2010 |
| 20100204502 | PROCESS FOR MANUFACTURING ACROLEIN FROM GLYCEROL - The subject of the present invention is a process for preparing acrolein by dehydration of glycerol in the presence of a catalyst system based on iron phosphorous oxide containing, in addition, one or more elements chosen from alkali metals, alkaline-earth metals, AI, Si, B, Co, Cr, Ni, V, Zn, Zr, Sn, Sb, Ag, Cu, Nb, Mo, Y, Mn, Pt, Rh and the rare earths La, Ce, Sm. The process is preferably carried out in the gas phase in the presence of oxygen starting from aqueous solutions of glycerol. The process according to the invention makes it possible of obtain high acrolein selectivities. | 08-12-2010 |
| 20100204375 | PVDF-BASED EXTRUSION-AIDING AGENT - The invention concerns to a composition comprising: at least one fluorinated polymer (A), at least one interfacing agent (B), and at least one stabilizer (C) of formula (I) | 08-12-2010 |
| 20100203600 | METHOD FOR THE COPRODUCTION OF METHYL 7-OXOHEPTANOATE AND UNDECYLENIC ACID FROM RICINOLEIC ACID - The invention relates to a method for converting ricinoleic acid that comprises the following successive stages:
| 08-12-2010 |
| 20100203328 | METHOD FOR IMPREGNATING CONTINUOUS FIBRES WITH A COMPOSITE POLYMER MATRIX CONTAINING A THERMOPLASTIC POLYMER - The invention relates to a method for the impregnation of continuous fibers, that comprises coating said fibers with a polymer matrix containing at least one thermoplastic semicrystalline polymer having a glass transition temperature (T | 08-12-2010 |
| 20100201023 | METHOD FOR PREPARING COMPOSITE MATERIALS - The invention relates to a method for producing a composite material, that comprises: a—preparing a carbon nanotube-based master mixture according to a method that comprises: mixing the carbon nanotubes in the form of a powder and at least one thermoplastic and/or elastomer polymer matrix in the form of a powder, the amount of carbon nanotubes representing from 2 to 30 wt % relative to the total weight of the powdery mixture; and implementing said mixture into an agglomerated solid physical form; and B—placing said master mixture into a thermoplastic and/or elastomer polymer mixture. The invention also relates to the use of the above master mixture for implementing said method. | 08-12-2010 |
| 20100196973 | METHODS FOR THE SYNTHESIS OF FATTY DIACIDS BY THE METATHESIS OF UNSATURATED DIACIDS OBTAINED BY FERMENTATION OF NATURAL FATTY ACIDS - The invention relates to a method for the synthesis of diacids of general formula ROOC—(CH | 08-05-2010 |
| 20100196643 | COOLING JIG FOR EXTRUDING PCTFE STRINGS AND METHOD FOR EXTRUDING PCTFE STRINGS - The invention relates to a method for making PCTFE strings, that comprises Extruding PCTFE with an extruder connected to an assembly comprising a die and a metallic cooling jig, characterized in that a material is provided between the inner metallic wall of the cooling jig and the PCTFE such that the friction between the PCTFE and this material is lower than the friction between the PCTFE and the metal of the cooling jig. | 08-05-2010 |
| 20100196250 | CONTINUOUS METHOD FOR OBTAINING COMPOSITE FIBRES CONTAINING COLLOIDAL PARTICLES AND RESULTING FIBRE - The invention relates to a method for obtaining composite fibers, that comprises dispersing colloidal particles in a solvent, injecting the dispersion into a co-flow of a polymer coagulation solution for forming a pre-fiber, circulating the pre-fiber in a duct, extracting, optionally washing and drying the pre-fiber in order to obtain a fiber, and winding the fiber thus obtained, characterized in that the minimum retention time of the fiber within the duct is adjusted so that it has a mechanical strength sufficient to be extracted from the duct, and in that its extraction is vertical and continuous. The invention also relates to composite fibers that can be made according to said method. | 08-05-2010 |
| 20100191025 | PROCESS FOR PREPARING (HYDRO)(CHLORO)OLEFINS - The present invention relates to a process for preparing (hydro)(chloro)fluoroolefins comprising at least one step of fluorination in the liquid phase of a (hydro)haloalkane or of a (hydro)haloalkene in the presence of at least one ionic liquid as a catalyst. The ionic liquids are derivatives of Lewis acids based on aluminum, titanium, niobium, tantalum, tin, antimony, nickel, zinc or iron. | 07-29-2010 |
| 20100189946 | COMPOSITE MATERIAL INCLUDING NANOTUBES DISPERSED IN A FLUORINATED POLYMER MATRIX - The invention relates to a composite material including nanotubes of a chemical element selected from the compounds of the elements of columns IIIa, IVa and Va of the periodic table, dispersed in a polymer matrix including (a) at least one fluorinated homo- or copolymer and (b) at least one fluorinated homo- or copolymer grafted with at least one carboxylic polar function. The invention also relates to the use of the composite material and to the use of at least one fluorinated homo- or copolymer grafted with at least one carboxylic polar function for increasing the tensile strength of a composite material containing the above nanotubes dispersed in a fluorinated polymer matrix. | 07-29-2010 |
| 20100184926 | COMPOSITION CONTAINING A LACTIC ACID HOMOPOLYMER AND A BLOCK COPOLYMER - The present invention relates to a composition containing at least one lactic acid homopolymer and at least one block copolymer with a polydispersity index ranging from 1.5 to 5 and comprising:
| 07-22-2010 |
| 20100183837 | USE OF A POLYAMIDE BASED COMPOSITION FOR FLEXIBLE PIPES FOR CONVEYING CRUDE OIL OR GAS AND FLEXIBLE PIPE USING SUCH COMPOSITION - The invention relates to the use of a composition that contains from 70 to 91 wt % of at least one semi-crystalline polyamide, from 5 to 25 wt % of a polyolefin having an epoxy, anhydride or acid function introduced by grafting or copolymerization, and from 4 to 20 wt % of a plasticizer in the production of flexible pipes used in the exploitation of crude oil or gas deposits under the sea that comprises at least one layer obtained from such a composition. | 07-22-2010 |
| 20100174008 | BLOWING AGENT COMPOSITION - The invention concerns a blowing agent composition comprising dichloroethylene and at least one compound (C) selected from among haloketones, fluoroacids, fluoroesters. fluoroamines, (hydro)fluoroethers, (hydro)fluorothioethers, (hydro)fluoroolefins, cyclic(hydro)fluorocarbides and iodofluoro(hydro)carbides. | 07-08-2010 |
| 20100168471 | METHOD FOR PREPARING ACRYLIC ACID FROM GLYCEROL - The invention relates to a method for preparing acrylic acid from an aqueous glycerol solution, comprising a first step of dehydration of the glycerol to acrolein, carried out in the gas phase in the presence of a catalyst and under a pressure of between 1 and 5 bar, and a second step of oxidation of the acrolein to acrylic acid, in which an intermediate step is implemented, consisting in at least partly condensing the water and heavy by-products present in the stream issuing from the first dehydration step. This method serves to obtain high acrylic acid productivity and selectivity. | 07-01-2010 |
| 20100168453 | METHOD FOR THE SYNTHESIS OF OMEGA-AMINO-ALKANOIC ACIDS - The invention relates to a method for the synthesis of amino acids/esters of general formula NH | 07-01-2010 |
| 20100145092 | METHOD FOR THE SYNTHESIS OF (METH)ACRYLIC ESTERS CATALYSED BY A POLYOL TITANATE - The subject of the invention is a method for the synthesis of (meth)acrylic esters by transesterification in the presence of a catalyst corresponding to the formula [(R′O) | 06-10-2010 |
| 20100143629 | METHACRYLIC COMPOSITION FOR OBTAINING A COATING HAVING A ROUGH TEXTURE AND A MATT APPEARANCE - The invention relates to a methacrylic composition comprising (100-x-y) parts of at least one methacrylic polymer that is a homopolymer or copolymer of MMA, dispersed in which are:
| 06-10-2010 |
| 20100140846 | COMPOSITION BASED UPON A POLYAMIDE THAT IS AMORPHOUS AND TRANSPARENT OR HAS VERY LOW CRYSTALLINITY, AND UPON A COPOLYAMIDE WITH ETHER AND AMIDE UNITS - “Composition composed of a mixture of: 60 to 99% by weight of a polymer component (A) formed from at least one of the homopolyamides and copolyamides: a) that are transparent and amorphous or present crystallinity such that the enthalpy of fusion during the second heating of an DSC ISO (delta Hm(2) is at most 30 J/g, the mass being related to the number of amide units contained or polyamide contained, this melting corresponding to that of the amide units; b) presenting a glass transition temperature (Tg) of greater than 90° C.; and c) composed at least in part of cycloaliphatic and/or aromatic units, and/or alloys based on at least one previously cited homopolyamide or copolyamide, said alloys being amorphous or presenting crystallinity meeting the same definition as hereinabove; 40 to 1% by weight of a polymer component (B) formed by at least one copolyamide based on ether units and amide units; the polymer components (A)+(B) representing 100% by weight; where at least one among (A) and (B) may additionally contain at least one additive usual for thermoplastic polymers and copolymers, without the content of said additive or additive(s) in each of the polymer components (A) and (B) representing more than 30% by weight of the said polymer component.” | 06-10-2010 |
| 20100137534 | METHOD FOR PREPARING MICROGEL PARTICLES BY CONTROLLED RADICAL POLYMERIZATION IN AN AQUEOUS DISPERSION USING NITROXIDE CONTROL AGENTS - The invention relates to a method for preparing microgel particles according to a method of controlled radical polymerization in an aqueous dispersion using particular control agents of the nitroxide type. Use in the biomedical field, and in the field of agrochemistry, cosmetics, surface coatings. | 06-03-2010 |
| 20100137516 | IMPACT-RESISTANT COMPOSITION BASED ON A POLYAMIDE RESIN AND ON A BLEND OF AT LEAST ONE GRAFT COPOLYMER WITH POLYAMIDE BLOCKS AND A LOW-DENSITY ETHYLENE POLYMER - The invention relates to a composition based on an impact-resistant polyamide thermoplastic resin, comprising, as a blend:
| 06-03-2010 |
| 20100137182 | COMPOSITIONS THAT CAN ESPECIALLY BE USED AS SOLVENTS FOR CLEANING PAINT WORK - The present invention relates to compositions which can be used as solvents for the cleaning of paints which are less toxic and less inflammable than white spirit, which is one of the most widely used solvents for the cleaning of paints. | 06-03-2010 |
| 20100136274 | USE OF A MULTI-LAYERED STRUCTURE FOR THE MANUFACTURE OF GAS CONDUCTS, NAMELY FOR METHANE - The present invention relates to the use of a multi-layered structure for the manufacture of gas conducts, namely for methane. The multi-layered structure comprises, from the inside to the outside, the following successive layers: a layer containing at least one polyamide, wherein the polyamide is chosen from PA11, PA12 and an aliphatic polyamide obtained from condensation reaction of an aliphatic diamine having 6 to 18 carbon atoms and an aliphatic diacid having 9 to 18 carbon atoms; optionally, a binding 2 layer; and a layer 3 chosen from an EVOH layer, a layer formed of a mixture of polyamide and a polyolefin with a polyamide matrix, a layer of PA6,PA6-6, MXD.6 or MXD.10 and a layer of semi-aromatic copolyamide, the layer 3 being intended to be in contact with the transported gas. | 06-03-2010 |
| 20100135940 | SEMI-CRYSTALLINE SUPRAMOLECULAR POLYMERS - The invention relates to a supramolecular polymer derived from the reaction between (i) an amine bearing a nitrogen-containing heterocyclic group: imidazolidone, trimethyleneurea or triazine, capable of joining together via hydrogen bonds with (ii) at least one fatty acid monomer comprising at least one reactive functional group, a dimer of identical or different fatty acids and/or a trimer of identical or different fatty acids, or a derivative of said fatty acid(s) chosen from a fatty acid ester, and a fatty acid chloride. | 06-03-2010 |
| 20100130759 | NOVEL FUNCTIONAL COMPOUNDS WITH AN ISOSORBIDE OR ISOSORBIDE ISOMER CORE, PRODUCTION PROCESS AND USES OF THESE COMPOUNDS - The present invention relates to compounds of formula (I): R—(CH | 05-27-2010 |
| 20100130630 | PROCESS FOR PREPARING A TRIBLOCK COPOLYMER COMPRISING A SEMI-CRYSTALLINE AND/OR HYDROLYSABLE BLOCK, AN ELASTOMERIC BLOCK AND AN AMORPHOUS BLOCK - The invention relates to a process for the preparation of a block copolymer comprising a sequence successively comprising a semicrystalline and/or hydrolysable block, an elastomeric block and an amorphous block, comprising the following stages:
| 05-27-2010 |
| 20100126690 | USE OF AMINE BLENDS FOR FOUNDRY SHAPED CORES AND CASTING METALS - The present invention relates to an improved process for preparing foundry shapes by the cold box process, a process for making cores and moulds and a process for casting metals, carrying out as curing catalyst system a blend comprising at least two tertiary amines. | 05-27-2010 |
| 20100121024 | METHOD FOR PRODUCING A COPOLYMER OF AT LEAST ONE CYCLIC MONOMER - The present invention relates to a process for the preparation of a copolymer of at least one cyclic monomer chosen from a lactone, a lactam, a lactide and a glycolide, comprising the stage consisting in reacting said cyclic monomer with a polymeric initiator in the presence of a compound carrying a sulfonic acid functional group. | 05-13-2010 |
| 20100121021 | PROCESS FOR THE PREPARATION OF POLYLACTONES AND POLYLACTAMS - The present invention relates to a process for the preparation of a lactone or lactam homopolymer, comprising the stage consisting in reacting a lactone or lactam with a nonpolymeric initiator comprising at least one hydroxyl or thiol functional group in a nonchlorinated solvent in the presence of a sulfonic acid of formula R—SO | 05-13-2010 |
| 20100120983 | STYRENE/ANHYDRIDE POLYMERIC MATERIAL AND GRAFT HAVING ENHANCED PROPERTIES - A polymeric material from the styrene family, consisting of macromolecular chains grafted by nitrogen-containing heterocyclic groups; wherein the macromolecular chains consist of a polymeric backbone to which a grafted agent is attached by at least one covalent bond, the grafting agent comprises, in a single molecule, one or more associative groups capable of being bound by hydrogen bonds, and one or more reactive groups capable of forming covalent bonds with the polymeric backbone, at least one of the associative groups of the modifier is an imidazolidone heterocyclic ring. The mean number of imidazolidone groups to be inserted into the macromolecular chains is dependent both on the mean mass of said chains and on the final properties to be imparted to the material. The polymeric material of the invention can be extruded, coextruded, injected, blow-moulded, moulded, overmoulded, calendered or thermoformed. Objects such as tubes, films, plates, stiffenerss, bottles and containers can be made. The polymeric material of the invention can also be blended with other materials such as other polymers, and can thus be modified by elastomeric phases that enhance the impact strength thereof. The polymeric material of the invention can be a component of masterbatches of additives such as pigments and fillers. The present invention further relates to the use of said polymeric material as a compatibilization agent in a composition including, inter alia, at least two polymers belonging to different polymeric classes.” | 05-13-2010 |
| 20100119761 | OPTICAL 3D MEMORY COMPRISING A BLOCK COPOLYMER CONTAINING A PHOTOACTIVE MONOMER HAVING A PHOTOISOMERABLE GROUP - The present invention relates to a block copolymer comprising: at least a bloc A having a T | 05-13-2010 |
| 20100113677 | COMPOSITE BASED ON POLYLACTIC ACID AND A POLYAMIDE, HAVING IMPROVED IMPACT RESISTANCE, ITS MANUFACTURING PROCESS AND USE - The present invention relates to a composite having improved impact resistance. According to the invention, this composite is obtained from a composition comprising the following polymers: polylactic acid (PLA) which forms the matrix; at least one polyamide forming a dispersed phase within the PLA matrix; at least one functionalized polyolefin (A) comprising alpha-olefin units and epoxy, carboxylic acid or carboxylic acid anhydride units; and, optionally, at least one unfunctionnalized polyolefin (B). | 05-06-2010 |
| 20100113670 | POLYAMIDE-BASED HIGH-PERFORMANCE SELF-ADHESIVE POWDER WITHOUT ADHESION PROMOTER - The invention provides a self-adhesive composition in powder form for the coating of metallic substrates, composed of homopolyamide (A) selected from PA11 and PA12, copolyamide (B), calcium carbonate and, optionally, at least one component selected from a pigment or dye, an anti-crater agent or spreading agent, a reductant, an antioxidant, a reinforcing filler, a UV stabilizer, a fluidizing agent and a corrosion inhibitor, said composition being devoid of silane-type adhesion promoter or of an adhesion promoter containing an epoxy, alcohol and/or carboxylic acid function, or derivatives thereof, and having a dry-state modulus and/or a wet-state modulus of greater than or equal to 2200 MPa [Standard NF EN ISO 527]. The invention also relates to a composite material comprising a metallic substrate directly coated with a coating film resulting from the melting of said composition, the adhesion of the coating film to the metallic substrate being greater than 3 after 2000 hours of salt fog before and after drying, in accordance with Standard NFT 58-112. | 05-06-2010 |
| 20100113661 | METHOD FOR PREPARING POLYAMIDE POWDER BY ANIONIC POLYMERISATION - The invention relates to a method for preparing a powdered polymer selected from a polyamide, a copolyamide or a copolyesteramide by anionic polymerization in a solvent solution, characterized in that the polymerization of the monomers) generating said polymer is made in the presence of a catalyst, an activator, at least one amide one of which is always a N,N′-alkylene bisamide, and an organic or inorganic filler, the amount of N,N′-alkylene bisamide added in the medium being determined based on the specific surface are desired for the powder particles, said powder particles having an essentially constant diameter or one depending on the desired mean diameter of the powder particles, said powder particles having an essentially constant specific surface area. | 05-06-2010 |
| 20100112357 | POLY(LACTIC ACID) COMPOSITION WITH IMPROVED IMPACT RESISTANCE - The present invention relates to a polylactic acid with improved impact strength, comprising, by weight:
| 05-06-2010 |
| 20100112256 | MULTI-LAYERED STRUCTURE CONTAINING A BARRIER POLYMER OPTIONALLY REINFORCED AGAINST IMPACTS - The invention relates to a multi-layer structure containing from the inside towards the outside: a layer C1 comprising at least one functionalized fluorinated polymer optionally mixed with at least one compatible fluorinated polymer; a layer C2 containing at least one adhesive binder; a layer C3 containing at least one polyolefin, preferably a polyethylene; a layer C4 containing at least one adhesive binder; a barrier layer C5 containing at least one barrier polymer, optionally reinforced against impacts; the layers are arranged against each other in the above mentioned order. The invention also relates to the use of this mull-layered structure for storing or transferring fuel. | 05-06-2010 |
| 20100108950 | METHOD FOR PREPARING AN AQUEOUS SUSPENSION OF CARBON NANOTUBES AND SUSPENSION THUS OBTAINED - The invention relates to a method for preparing an aqueous suspension of carbon nanotubes, that comprises: contacting in an aqueous medium said nanotubes with at least one dispersant comprising a copolymer including at least one anionic hydrophile monomer and at least one monomer containing at least one aromatic group substituted by at least one chain containing one or more oxygen atoms, said chain linking the aromatic group to the unsaturated or cyclic chain of the monomer capable of opening during the formation of the copolymer, the weight ratio between the dispersant and the carbon nanotubes ranging from 0.6:1 to 1.9:1; and mechanically processing the mixture thus obtained using ultrasounds or a rotor-stator system or by passing it in a bead or ball grinder, the invention also relates to the suspension thus obtained and to the uses thereof. | 05-06-2010 |
| 20100105812 | COPOLYAMIDE, COMPOSITION CONTAINING SUCH COPOLYAMIDE AND USE THEREOF - The invention relates to a copolyamide containing at least two patterns (monomers) and of the following general formula A/(Cz diamine)·(Cw diacid) in which: z is the number of carbon atoms of the diamine and w is the number of carbon atoms of the diacid; and A is selected from a pattern obtained from an amino acid and a pattern of the general formula (Cx diamine)·(Cy diacid) | 04-29-2010 |
| 20100098880 | CORE-SHELL POLYAMIDE POWDER - The invention relates to a seeded particle of polyamide (PA) powder composed of a shell made of PA-6, PA-12 or PA-6/12 and of a core made from PA-6, paA-11, PA-12 or PA-6/12, PA 6,12, PA-6,6, PA-8 or PA-4, the core and the shell being either of identical polyamide nature but of different molecular weight, or of different polyamide nature. The particle for which the shell has a melting temperature Tf1 and a crystallization temperature Tc1 and for which the core has a melting temperature Tf2 and a crystallization temperature Tc2, is characterized in that the difference in absolute value between Tf1−Tc1 and/or between Tf1−Tc2 is greater than the difference in absolute values between the melting temperature and the crystallization temperature of a particle of powder seeded by a mineral filler and for which the shell is made of PA6, PA12 or PA6/12. | 04-22-2010 |
| 20100087585 | COMPOSITE MATERIAL BASED ON POLYAMIDE AND ON POLY(LACTIC ACID), MANUFACTURING PROCESS AND USE THEREOF - The present invention relates to a composite obtained from a composition comprising:
| 04-08-2010 |
| 20100084616 | CONDUCTING COMPOSITE MATERIAL CONTAINING A THERMOPLASTIC POLYMER AND CARBON NANOTUBES - The invention relates to methods for controlling and improving the conductivity of thermoplastic polymer composites containing CNTs or even for making these materials conductive when they are initially insulating. | 04-08-2010 |
| 20100084101 | METHOD FOR FUNCTIONALISING CARBOHYDRATES - The invention relates to a method for functionalising carbohydrates, that comprises at least one step during which the carbohydrates react with an oxidizing agent in the presence of copper-phenanthroline complex. The invention more particularly relates to a method for functionalising cellulose fibers for the paper industry. | 04-08-2010 |
| 20100075088 | THERMOPLASTIC COMPOSITION COMPRISING A THERMOPLASTIC MATRIX AND A TERPOLYMER OF ALKYL METHACRYLATE, ALKYL ACRYLATE AND A STYRENE MONOMER - The invention relates to a thermoplastic composition comprising at least one thermoplastic matrix; and at least one copolymer obtained by copolymerisation of C | 03-25-2010 |
| 20100069695 | ADDITIVE FOR REDUCING COKING AND/OR CARBON MONOXIDE IN CRACKING REACTORS AND HEAT EXCHANGERS AND USE OF SAME - The present invention concerns an additive for reducing the formation of coke and/or carbon monoxide in thermal hydrocarbon cracking units and/or of other organic compounds in heat exchangers. The additive according to the invention is essentially composed of diethyl disulphide (DEDS) or dipropyl disulphide(s) (DPDS) or dibutyl disulphide(s) (DBDS) and can be used on the metal walls of a cracking reactor and on the metal walls of a heat exchanger placed downstream from the cracking reactor, and during the process of cracking hydrocarbons and/or other organic compounds. | 03-18-2010 |
| 20100069577 | COPOLYMERS BASED ON METHACRYLATE UNITS, PREPARATION METHOD THEREOF AND USE OF SAME - The invention relates to a method for preparing a copolymer having a backbone based on methacrylate units, comprising a step involving the polymerization of one or more precursor methacrylate monomers of said units in the presence of: a polymerization initiator; at least RAFT-type transfer agent which can generate a primary radical; and at least one comonomer selected from among styrene monomers and acrylate monomers. The invention also relates to the resulting copolymers capable of being obtained according to this process, in particular block copolymers, in particular block copolymers, and to the use thereof as additives for plastic materials. | 03-18-2010 |
| 20100068108 | COATED REACTORS, PRODUCTION METHOD THEREOF AND USE OF SAME - The present invention relates to a process for the preparation of primary di- and/or triamines of high purity from nitriles which can themselves originate from dimer and/or trimer acids. | 03-18-2010 |
| 20100063223 | COPOLYMER GRAFTED WITH POLYAMIDE, MATERIAL COMPRISING IT, PREPARATION PROCESS AND USES - The invention relates to a graft copolymer composed of a block copolymer of general formula B-(A) | 03-11-2010 |
| 20100056658 | TRANS-1,2 DICHLOROETHYLENE COMPOSITION - The present invention relates to a composition based on trans- | 03-04-2010 |
| 20100048850 | METHOD FOR THE SYNTHESIS OF ACRYLONITRILE FROM GLYCEROL - The invention relates to a novel way to synthesize acrylonitrile from a renewable raw material and more particularly relates to a method for producing acrylonitrile by the ammoxidation of glycerol in gaseous phase. The method can be implemented in a single step, or the glycerol can be previously submitted to a dehydration step. The acrylonitrile thus obtained meets the requirements of green chemistry. | 02-25-2010 |
| 20100048797 | THERMOPLASTIC COMPOSITIONS HAVING IMPROVED PROPERTIES DURING AND AFTER PROCESSING STEPS, PROCESS FOR MANUFACTURING AN ARTICLE AND ARTICLE THUS OBTAINED - The present invention relates to a thermoplastic composition, said composition comprising at least one non-PVC thermoplastic matrix and at least one copolymer chosen from the group consisting of acrylic-based copolymer having an average molecular weight M | 02-25-2010 |
| 20100047495 | MULTILAYER TUBE FOR TRANSPORTING WATER OR GAS - The invention relates to multilayer tube comprising (from the inside to the outside of the tube): an optional layer (C | 02-25-2010 |
| 20100047153 | METHOD OF MANUFACTURING CARBON FIBRES - The present invention relates to a method of manufacturing carbon fibres from raw materials of renewable origin, comprising:
| 02-25-2010 |
| 20100038602 | METHOD FOR PREPARING CARBON FIBRILS AND/OR NANOTUBES FROM A CARBON SOURCE INTEGRATED WITH THE CATALYST - The present invention relates to a method for preparing carbon fibrils and/or nanotubes from a carbon source integrated in the catalyst used for their preparation and a source of hydrocarbonated gas, as well as to the catalyst material and to the corresponding method. The catalyst material for preparing mono- or multi-leaved carbon fibrils and/or nanotubes includes one or more given multivalent transition metals and a hydrocarbonated solid organic substrate. | 02-18-2010 |
| 20100036059 | USE OF COPOLYMERS WITH A COMPOSITION GRADIENT AS STABILIZERS IN EMULSION FREE-RADICAL POLYMERIZATION - The present invention describes the use of copolymers with a composition gradient as sole stabilizer in emulsion free-radical polymerization. The copolymers of the invention are prepared via controlled free-radical polymerization and comprise at least one hydrophilic monomer such as acrylic acid and at least one hydrophobic monomer such as styrene. | 02-11-2010 |
| 20100015376 | PVDF-BASED CONDUCTIVE COMPOSITION - The invention relates to a conducting composition comprising, (by weight):
| 01-21-2010 |
| 20100004349 | METHOD FOR PRODUCTION OF THERMOPLASTIC FOAMS - The present invention concerns a method for production of foams of thermoplastic polymer such as polyethylene, polypropylene, polystyrene, polyvinyl chloride. More specifically its goal is a method for production of thermoplastic foams comprising a premixing step of at least a thermoplastic polymer in the form of a divided solid with at least an ester of azocarboxylic acid. | 01-07-2010 |
| 20100000601 | PHOTOVOLTAIC MODULES HAVING A POLYVINYLIDENE FLUORIDE SURFACE - The invention relates to a photovoltaic module for capturing and using solar radiation having as a transparent glazing a thermoplastic structural component covered by a thin polyvinylidene fluoride layer The polyvinylidene fluoride layer is exposed to the environment and provides a chemical resistant and dirt shedding surface. The structure may contain a tie layer between the polyvinylidene fluoride layer and the structural thermoplastic to aid in adhesion. | 01-07-2010 |
| 20090326284 | METHOD FOR PRODUCING PENTAFLUOROETHANE - The invention relates to a method for producing pentafluoroethane, and especially to a method comprising (i) a step during which perchloroethylene and optionally 2,2-dichloro-1,1,1-trifluoroethane and/or 2-chloro-1,1,1,2-tetrafluoroethane react(s) with hydrofluoric acid in a gaseous phase in the presence of a catalyst in an adiabatic multi-stage reactor, and optionally (ii) a step of separating the flow produced in step (i) in order to obtain a fraction of light products and a fraction of heavy products. | 12-31-2009 |
| 20090321694 | Optical 3D memory comprising multilayer particles that comprise a photoactive monomer bearing a photoisomerizable group - The invention relates to a core-shell-type multilayer particle comprising at least one layer B that comprises at least one photoactive monomer bearing a photoisomerizable chromophore and a rigid shell A. The photoactive monomer has the following formula (I): (I) in which: X denotes H or CH | 12-31-2009 |
| 20090318630 | BLENDS AND ALLOYS BASED ON AN AMORPHOUS TO SEMICRYSTALLINE COPOLYMER, COMPRISING AMIDE UNITS AND COMPRISING ETHER UNITS, WHEREIN THESE MATERIALS HAVE IMPROVED OPTICAL PROPERTIES - Transparent blend or alloy comprising, by weight, the total being 100%: (A) 1 to 99% of at least one copolymer constituent: which is amorphous or has a crystallinity ranging up to semicrystallinity; and which comprises: (A1) amide units, among which is at least one cycloaliphatic unit; (A2) flexible ether units; (B) 99 to 1% of at least one polymer constituent selected from: (Ba) semicrystalline copolyamides comprising amide units (Ba1) and comprising ether units (Ba2), (Bb) semicrystalline polyamides or copolyamides without ether units, (Bc) transparent polyamides or copolyamides without ether units, which are amorphous or weakly crystalline, and alloys based on such polyamides or copolyamides; and (C) 0 to 50% by weight of at least one polyamide, copolyamide, copolyamide comprising ether units or alloy based on such polyamides or copolyamides other than those used in (A) and (B) above. The resulting blend or alloy has a high transparency such that the transmission at 560 nm on a plate 2 mm thick is greater than 50%. | 12-24-2009 |
