Evonik Roehm GmbH Patent applications |
Patent application number | Title | Published |
20160138804 | RECIRCULATION AND DISPOSAL OF AQUEOUS CATALYST SOLUTIONS IN AMINE CATALYTIC PROCESSES - The present invention relates to the oxidative combustion of amine-containing wastewaters, especially in a process for preparing methacrolein. Methacrolein is used in chemical synthesis particularly as an intermediate for preparation of methacrylic acid, methyl methacrylate, or else of active ingredients, odorants or flavorings. More particularly, the present invention relates to an oxidative combustion of the amine-containing wastewaters with only low nitrogen oxide formation. | 05-19-2016 |
20160135759 | PERSONALIZED DETECTION SYSTEM FOR DETECTING MAGNETIC OBJECTS IN THE HUMAN ORGANISM - The invention relates to a device with a sensor arrangement, which is able to detect magnetic or magnetized oral administration forms after oral take-up, moreover tracks the dissolution thereof via the reduction or disappearance of the magnetic field of the oral administration form, and with a log function, which records a subjective evaluation on the part of the human wearer of the sensor arrangement during or after the oral take-up. | 05-19-2016 |
20160122525 | COMPOSITE SYSTEM WITH HIGH IMPACT STRENGTH AND A HIGH SOFTENING POINT - The present invention relates to a composite system, preferably a multilayer film, having high impact resistance and heat distortion resistance, and to a process for production thereof and to the use thereof. | 05-05-2016 |
20160101607 | ELASTOMER PMMA LAYERED COMPOSITES HAVING IMPROVED PROPERTIES - The invention relates to a plastics laminate in particular for vehicle glazing. The composite is composed of at least three layers, where the two exterior layers are composed of a transparent polymethyl (meth)acrylate (PMMA) and the internal layer is composed of a thermoplastic polyurethane (TPU). The plastics laminate passes the ECE R43 falling-ball test and has better acoustic properties than prior-art plastics composites of the same size. | 04-14-2016 |
20160090344 | METHOD FOR DEHYDRATING ALPHA-SUBSTITUTED CARBOXYLIC ACIDS - The present invention describes a process for preparing alpha-beta-unsaturated carboxylic acids by dehydration of hydroxycarboxylic or alkoxycarboxylic acids which are substituted in the alpha position, in particular 2-hydroxyisobutyric acid, while avoiding accumulation of by-products and additives. | 03-31-2016 |
20160081933 | PROCESS FOR STABILIZING THE DRUG RELEASE PROFILES OF POLYMER FILM COATED PHARMACEUTICAL COMPOSITIONS - The invention relates to a process for stabilizing the drug release profile of a polymer film coated pharmaceutical composition, wherein the pharmaceutical composition comprises a core comprising an active pharmaceutical ingredient and a polymer film coating onto the core which was applied by a spray coating process, including a subsequent drying step, by applying microwave-irradiation, infrared-irradiation, UV-irradiation or ultra sonic wave irradiation to the polymer film coated pharmaceutical compositions. | 03-24-2016 |
20160068464 | METHOD FOR PRODUCING METHYLMETHACRYLATE - The present invention relates to a process for producing methyl methacrylate, comprising the following steps:
| 03-10-2016 |
20160059488 | MULTICOLOURED FUSED DEPOSITION MODELLING PRINT - The invention relates to a modified fused deposition modeling process for production of multicolored three-dimensional objects. More particularly, the invention relates to a 3D printing process with which 3D objects with particularly good color appearance compared to the prior art can be produced. The process according to the invention is based on coloring of the polymer strand used for production of the actual object in the nozzle, and on using a mixing apparatus which comprises a plurality of injection needles, a static mixer or a dynamic mixer. | 03-03-2016 |
20160046556 | PROCESS FOR PREPARING (METH)ACRYLATES - Process for preparing (meth)acrylates of the formula (I) | 02-18-2016 |
20160039986 | METHOD FOR CONTINUOUS PMI FOAM PRODUCTION - The present invention relates to a process for the continuous manufacture of PMI foam blocks. This has high flexibility in respect of the size of the blocks. This process begins by bonding the ends of individual prepolymerized PMI blocks to one another, preferably by means of hot-plate welding, and then passes the blocks into an NIR heating unit. The PMI polymer here foams continuously during passage through the said unit. The PMI foam is discharged at the end in the form of continuous material and can be cut or sawn into individual pieces of any desired length and shape. This process is advantageous in comparison with the continuous procedure in that the PMI foam material is almost stress-free and has a very uniform, closed-cell pore structure. At the same time, uniform density distribution is achieved over the thickness of the block, since the foaming procedure does not proceed from the outside to the centre of the block, but instead the volume of the polymer is increased uniformly. | 02-11-2016 |
20160017165 | SURFACE COATING BASED ON CROSSLINKABLE FLUOROPOLYMERS - The present invention relates to a technology for the treatment of materials for exposed outdoor use with a high-grade, abrasion-resistant surface coating based on a formulation comprising crosslinkable fluoropolymers. The invention further relates to particular embodiments for the surface coating. | 01-21-2016 |
20160017151 | NOVEL ROAD MARKINGS FOR ASSISTING THE PERCEPTION OF THE SURROUNDINGS OF VEHICLES - The present invention encompasses an innovative concept for the marking of trafficways, more particularly roads. The application qualities and lifetime of these new markings are comparable with those of the prior art. The markings also possess properties comparable with those of the prior art in respect of night visibility, back-in-service time, and surface quality. An additional contribution of the markings of the present invention, however, is that they can be used to support modern driver assistance systems and autonomous driving. With this in mind, the present invention relates more particularly to road markings which, building on established systems, are equipped with additional reflection capacity for electromagnetic radiation, more particular for microwaves and/or infrared radiation. | 01-21-2016 |
20150376437 | PMMA PROVIDED WITH IMPACT RESISTANCE AND HAVING IMPROVED OPTICAL PROPERTIES - The invention relates to a moulding composition modified for impact resistance, in particular to impact-resistant PMMA with improved optical properties at elevated temperatures, to moulded items obtainable therefrom, and also to the use of the moulding composition and of the moulded items. | 12-31-2015 |
20150366825 | MULTIPARTICULATE PHARMACEUTICAL COMPOSITION COMPRISING A MULTITUDE OF TWO KINDS OF PELLETS - Multiparticulate pharmaceutical composition comprising a multitude of two kinds of pellets, A and B, each comprising metoprolol or a pharmaceutically acceptable salt thereof as an active pharmaceutical ingredient, wherein the pellets A are coated with a coating layer comprising at least 30% by weight of a polymeric compound consisting of one or more (meth)acrylate copolymers polymerized from 20 to 40% by weight of ethyl acrylate, 60 to 80% by weight of methyl methacrylate and 0 or less than 5% by weight of methacrylic acid or acrylic acid, in an amount sufficient to result in an active pharmaceutical ingredient release profile according to USP in pH 6.8 test medium with a release rate of less than 20% after 4 hours, wherein the pellets B are not coated or coated with a coating layer and show an active pharmaceutical ingredient release profile according to USP in pH 6.8 test medium with an active pharmaceutical ingredient release rate of more than 40% after 4 hours, wherein the metoprolol release rate of the pellets A in pH 1.2 test medium according to USP with the addition of 40% (v/v) ethanol is •not more than 15% after 15 minutes •more than 15 up to 40% after 30 minutes, wherein the metoprolol release rate of the pellets B in pH 1.2 test medium according to USP with the addition of 40% (v/v) ethanol is •more than 15% after 15 minutes •more than 40% after 30 minutes and wherein the pellets A and B are present in the multiparticulate pharmaceutical composition in a relation resulting in a combined active pharmaceutical ingredient release profile of the multiparticulate pharmaceutical composition according to USP in pH 6.8 test medium with releases rates of •not more than 25% after 1 hour •20 to 40% after 4 hours •40 to 60% after 8 hours •not less than 80% after 20 hours. | 12-24-2015 |
20150361236 | BEAD POLYMER FOR PRODUCING PMI FOAMS - The invention relates to a foamable bead polymer consisting of (meth)acrylonitrile, (meth)acrylic acid, copolymerizable latent blowing agents and optionally (meth)acrylic esters, the preparation thereof by suspension polymerization and the use thereof for producing foams. Such a bead polymer makes it possible, for example, to carry out in-mould foaming in a simple way and thus produce products having the shape of the desired workpiece directly. These workpieces are highly suitable as components in space, air, water and land vehicles and for other construction elements. | 12-17-2015 |
20150299363 | FUNCTIONAL MATERIALS WITH REVERSIBLE CROSSLINKING - The present invention relates to an innovative method for the reversible crosslinking of, for example, adhesives or coating materials, and to a composition stable on storage at room temperature for implementing this crosslinking reaction. | 10-22-2015 |
20150290136 | PROCESS FOR PREPARING A GRANULATED PRODUCT FROM A POWDER COMPOSITION - The invention discloses a process for preparing granulated product from a powder composition comprising the mixed components (a) and (b) and (c) or (d) or both, with (a), a copolymer consisting of free-radical-polymerized C1- to C4-esters of acrylic or methacrylic acid and alkyl(meth)acrylate monomers with tertiary amino groups in the alkyl side groups (b) 5 to 25% by weight, based on (a), of a C | 10-15-2015 |
20150218601 | MICROBIOLOGICAL PRODUCTION OF 3-HYDROXYISOBUTYRIC ACID - The present invention relates to a cell which has been modified in comparison with its wild type in such a way that it is capable of forming more, by comparison with its wild, 3-hydroxyisobutyric acid or polyhydroxyalkanoates based on 3-hydroxyisobutyric acid via methylmalonate-semialdehyde or 3-hydroxybutyryl-coenzyme A as precursors. The invention also relates to a method of generating a genetically modified cell, to the genetically modified cell obtainable by these methods, to a method of producing 3-hydroxyisobutyric acid or polyhydroxyalkanoates based on 3-hydroxyisobutyric acid, to a method of producing methacrylic acid or methacrylic esters, and to a method of producing polymethacrylic acid or polymethacrylic esters. The present invention furthermore relates to an isolated DNA, to a vector, to the use of this vector for transforming a cell, to a transformed cell, and to a polypeptide. | 08-06-2015 |
20150073171 | STABILIZED (METH)ACRYLIC MONOMERS - The present invention relates to the stabilization of (meth)acrylic monomers against premature polymerization during synthesis, storage and transport. The term “(meth)acrylic monomers” is understood to mean derivatives both of methacrylic acid and of acrylic acid. | 03-12-2015 |
20150047864 | Stabilizer for a lower link of a three-point hitch of a tractor - Stabilizer for a lower draft link of a three-point hitch of a tractor, the stabilizer comprising a first stabilizer member and a second stabilizer member which is movably connected to the first stabilizer member by a spring-loaded centering mechanism, wherein the second stabilizer member can be rotated with regard to the first stabilizer member to modify the overall length of the stabilizer. A locking bracket is pivotally connected to the first stabilizer member for blocking a rotation between the stabilizer members by engaging the locking bracket with a blocking groove formed in a circumference of the second stabilizer member. Furthermore, a locking cover is provided for disabling a movement between the stabilizer members in a closed position. A section of the locking cover is faced to the locking bracket, wherein the section is formed such in that the locking bracket can be removed from the blocking groove for releasing a rotation of the second stabilizer member even in the closed position of the locking cover. | 02-19-2015 |
20150045577 | METHOD FOR HYDROLYSING ACETONE CYANOHYDRIN - The present invention relates to a process for hydrolysis of acetone cyanohydrin (ACH) by means of sulphuric acid within the ACH sulpho process for preparation of methacrylic acid (MAA) or methyl methacrylate (MMA). | 02-12-2015 |
20150008914 | DETECTION SYSTEM FOR DETECTING MAGNETIC OBJECTS IN THE HUMAN ORGANISM - The subject matter of the invention is a detector system for detecting magnetic bodies in the human organism, which comprises at least two sensor assemblies, wherein each sensor assembly has one, two or three anisotropic magnetic resistance sensors, of which the axes of weak magnetisation point in different directions in pairs, and each sensor assembly has a spacing of 0.5 to 50 cm from the sensor assembly or the other sensor assemblies, and at least two sensor assemblies are tilted at an angle of 0 to 45° with respect to one another, and in addition a method for detecting the magnetic flux produced by a magnetic body in the human organism, and the use of the detector system according to the invention for detecting swallowed magnetic bodies and the disintegration of the same in the digestive system. | 01-08-2015 |
20140309361 | PROCESS FOR PREPARING EXPANDED COPOLYMERS BASED ON POLY(METH)ACRYLIMIDE COMPRISING AN ADHESION PROMOTER - The invention describes a method for producing a foam moulding from poly(meth)acrylimide, an adhesion promoter or an adhesion promoter mixture and optional auxiliaries, comprising the following steps:
| 10-16-2014 |
20140295074 | BINDING AGENT FOR PRODUCING ROAD MARKINGS READY QUICKLY FOR TRAFFIC - A method of producing a trafficway marking, the method including applying a cold plastic to a trafficway surface, to obtain the trafficway marking, where, in less than 5 minutes after the applying, the trafficway marking can withstand the passage of traffic, and where the cold plastic includes from 15% to 45% by weight of a reactive resin; from 1% to 5% by weight of a mixture comprising an initiator; from 7% to 15% by weight of an inorganic pigment; and from 50% to 60% by weight of a mineral filler. | 10-02-2014 |
20140288330 | PROCESS FOR PREPARING N-ALKYL(METH)ACRYLAMIDES - The invention relates to a process for preparing N-alkyl(meth)acrylamides by reacting (meth)acrylic anhydride with corresponding alkylamines. | 09-25-2014 |
20140235889 | METHOD FOR PRODUCING BICYCLIC OR TRICYCLIC (METH)ACRYLATES - Process for preparing bicyclic or tricyclic (meth)acrylates by reacting (meth)acrylic acid with a bicyclic or tricyclic hydrocarbon which contains at least one double bond using montmorillonite as catalyst. | 08-21-2014 |
20140232027 | CONTINUOUS METHOD FOR THE PRODUCTION OF LIGHT GUIDE PLATES - The present invention relates to a method for continuously producing light guide plates, e.g. for use as backlighting in LC displays, and to an apparatus for carrying out said method. | 08-21-2014 |
20140221687 | PROCESS FOR RECLAIMING METHACRYLIC ACID FROM A HIGH-BOILER PHASE AND AN AQUEOUS PHASE - The invention relates to a process for reclaiming methacrylic acid from a high-boiler phase in a heterogeneously catalysed gas phase oxidation of a C4-compound to methacrylic acid comprising the following steps a) Providing a high-boiler phase from a heterogeneously catalysed gas phase oxidation of a C4-compound to methacrylic acid b) Providing an aqueous phase, preferably organically loaded, from a heterogeneously catalysed gas phase oxidation of a C4-compound to methacrylic acid c) Mixing of components a) and b) optionally followed by filtration or centrifugation d) Adding an extraction media to the mixture from c) e) Subjecting the multiple-phase mixture from d) to at least one mixer-settler extraction process f) Recycling the organic phase from the last mixer-settler process back into the C4-process. | 08-07-2014 |
20140194585 | BULK POLYMERIZATION OF (METH)ACRYLATE COPOLYMERS SOLUBLE UNDER AQUEOUS-ALKALINE CONDITIONS - The invention relates to the synthesis of (meth)acrylate-based mass polymers which are soluble in aqueous alkaline. The invention in particular relates to the synthesis of polymers by means of a mass polymerization. Said mass polymers have a significantly improved solubility in aqueous alkaline media over corresponding polymers produced by means of a heterogeneous aqueous polymerization method, such as emulsion or suspension polymerization. Improved solubility in said context refers to the dissolution rate being faster among particles of equal size, to no significant turbidity remaining after dissolution and to the viscosity of the obtained solutions being lower at the identical ratio of solids content. Furthermore, the compatibility of the compounds according to the invention with water-based varnishes is at least comparable or even improved. | 07-10-2014 |
20140187817 | PREPARATION OF METHACRYLIC ACID - The invention relates to a process for preparation of methacrylic acid, comprising process steps a) providing a crude methacrylic acid-comprising aqueous solution comprising at least one impurity at least partially dissolved therein; b) precipitation of at least a part of the at least one impurity from the crude methacrylic acid-comprising aqueous solution to form at least one solid impurity and a mother liquor; c) separation of at least a part of the at least one solid impurity from the mother liquor to obtain a purified methacrylic acid-comprising aqueous solution and a solid impurity; d) separation of methacrylic acid from the purified methacrylic acid-comprising aqueous solution. | 07-03-2014 |
20140162025 | BIAXIAL FORMING PROCESS FOR THICK-WALLED ACRYLIC SHEET - The present invention relates to a novel biaxial forming process for a preform made of a polymer material which comprises polymethyl methacrylate, to an apparatus for carrying out the process, and also to novel components obtained from a biaxial forming process and their use. | 06-12-2014 |
20140144427 | POLYMERIC MATERIALS FOR EXTERNAL APPLICATIONS WITH SELF-HEALING SURFACE PROPERTIES AFTER SCRATCHES OR ABRASION DAMAGE - The invention relates to surface enhancements for composite mouldings made from polymeric materials and to the use thereof in solar systems. These solar systems may be solar reflectors for concentrating solar radiation, flexible photovoltaic composite films, or CPV (Concentrated Photovoltaics) lenses for concentrating solar radiation. | 05-29-2014 |
20140141092 | GASTRIC RESISTANT PHARMACEUTICAL OR NUTRACEUTICAL COMPOSITION WITH RESISTANCE AGAINST THE INFLUENCE OF ETHANOL - The invention discloses a gastric resistant pharmaceutical or nutraceutical composition, comprising a core, comprising a pharmaceutical or nutraceutical active ingredient and a gastric resistant coating layer onto the core, wherein the gastric resistant coating layer comprises at least 30% by weight of a (meth)acrylate copolymer comprising polymerized units of 10 to 40% by weight of acrylic or methacrylic acid, 10 to 80% by weight of a C | 05-22-2014 |
20140135521 | METHOD FOR PRODUCING ALPHA-HYDROXYCARBOXYLIC ACID ESTERS - The present invention relates to a continuous process for preparing alpha-hydroxycarboxylic esters by reacting at least one alpha-hydroxycarboxamide present in the liquid phase with an alcohol in the presence of a catalyst, which is characterized in that the resulting alpha-hydroxycarboxylic ester is at least partly separated from the reaction mixture via the gas phase. | 05-15-2014 |
20140128536 | LOW-ODOUR (METH)ACRYLIC REACTION RESINS - The present invention relates to an innovative (meth)acrylic reactive resin which cures with low odour or odourlessly. The present invention relates more particularly to reactive resins comprising high-boiling, reactive (meth)acrylic monomers from the group of the polar, cyclically substituted esters of (meth)acrylic acid, more particularly glycerol acetal, ketal or carbonate methacrylates. These new components are used as substitutes for MMA, which represents the major part of the odour nuisance in the existing, prior-art reactive resin systems. Using these new components it is possible to obtain resin formulations which have glass transition temperatures similar to, and properties comparable with, MMA-based resins. The innovative reactive resins are able in addition to exhibit more rapid curing than prior-art MMA-based systems. Reactive resins for the purposes of the invention are reactive monomer mixtures or mixtures of monomers and polymers that when used as a 2-component system can be readily cured. | 05-08-2014 |
20140121327 | POLYMER POWDER FOR PRODUCING THREE-DIMENSIONAL OBJECTS - The invention relates to the use of a powder made of a polymer, which of two or more components with functionalities suitable for Diels-Alder reactions, or of a powder mixture (dry blend) made of powders respectively of at least one of the reactive components, where these together enter into the Diels-Alder reaction with one another and are capable of a retro-Diels-Alder reaction, in a rapid-prototyping process. | 05-01-2014 |
20140106148 | PROCESS FOR CONTINUOUS INLINE PRODUCTION OF COATED POLYMERIC SUBSTRATES OR LAMINATES - The present invention relates to a method for the continuous inline production of coated polymeric substrates or laminates and also to an apparatus for implementing this method. | 04-17-2014 |
20140088751 | MULTICOLOURED FUSED DEPOSITION MODELLING PRINT - The invention relates to a modified fused deposition modeling process for production of multicolored three-dimensional objects. More particularly, the invention relates to a 3D printing process with which 3D objects with particularly good color appearance compared to the prior art can be produced. The process according to the invention is based on surface coloring or additive coating of the polymer strand used for production of the actual object or of the melt which results therefrom in the nozzle. | 03-27-2014 |
20140086997 | COATING COMPOSITION SUITABLE FOR PHARMACEUTICAL OR NUTRACEUTICAL DOSAGE FORMS - The invention relates to a coating composition suitable for the coating of a pharmaceutical or nutraceutical dosage form, comprising a core comprising one or more pharmaceutical or nutraceutical active ingredients, wherein the coating composition is comprising at least 20% by weight of an enteric core/shell polymer composition derived from an emulsion polymerisation process, wherein either the core of the core/shell polymer composition is formed by a water-insoluble, not cross-linked polymer or copolymer and the shell of the core/shell polymer composition is formed by an anionic polymer or copolymer or vice versa. | 03-27-2014 |
20140079841 | MULTICOLOURED FUSED DEPOSITION MODELLING PRINT - The invention relates to a modified fused deposition modeling process for production of multicolored three-dimensional objects. More particularly, the invention relates to a 3D printing process with which 3D objects with particularly good color appearance compared to the prior art can be produced. The process according to the invention is based on coloring of the polymer strand used for production of the actual object in the nozzle, and on using a mixing apparatus which comprises a plurality of injection needles, a static mixer or a dynamic mixer. | 03-20-2014 |
20140079792 | COATING COMPOSITION SUITABLE FOR PHARMACEUTICAL OR NUTRACEUTICAL DOSAGE FORMS - The invention relates to a coating composition suitable for the coating of pharmaceutical or nutraceutical dosage form, comprising a core comprising one or more pharmaceutical or nutraceutical active ingredients, wherein the coating composition is comprising at least 20% by weight of an enteric core/shell polymer composition derived from an emulsion polymerisation process, wherein the core of the core/shell polymer composition is formed by a water-insoluble, cross-linked polymer or copolymer and the shell of the core/shell polymer composition is formed by an anionic polymer or copolymer. | 03-20-2014 |
20140062121 | PLASTIC MOULDINGS FOR USE AS WINDOWS FOR CARS OR UTILITY VEHICLES - The invention relates to the use of coated mouldings consisting of impact modified polymethacrylate with high molecular weight as windows for passenger cars or utility vehicles. | 03-06-2014 |
20140045993 | REACTIVE RESINS FOR CABLE SEALING COMPOUNDS - The invention describes a composition, especially in the form of a 2-component system comprising (meth)acrylated polyether polyols and/or polyester polyols and/or (meth)acrylated hydroxy-functionalized triglycerides with an adjustable pot life, especially for cable potting compounds. | 02-13-2014 |
20130343088 | METHOD FOR PRODUCING LIGHT GUIDE BODIES AND USE THEREOF IN LIGHTING UNIT - The present invention relates to a method for producing light guide bodies and to their use in lighting units, for example for liquid crystal displays or for monitors. | 12-26-2013 |
20130317164 | MALEIC ANHYDRIDE COPOLYMERS AS SOLUBLE SUPPORT MATERIAL FOR FUSED DEPOSITION MODELLING (FDM) PRINTER - The invention relates to a novel support material for the fused deposition modelling process for producing three-dimensional objects. The invention relates more particularly to a 3D printing process involving support materials which are easier to remove than in the prior art. The support materials according to the invention are styrene-maleic anhydride copolymers for example. | 11-28-2013 |
20130306127 | NEW SOLAR CONCENTRATION DEVICES - The present invention relates to laminated solar concentration devices and to the production thereof from polymeric materials. The inventive solar concentration devices can be employed in photovoltaic systems or in solar thermal energy systems. The inventive solar concentration devices comprise Fresnel lenses and enable the efficient concentration of solar radiation onto objects such as solar cells or absorber units, irrespective of the geometry thereof. This relates, for example, to the area of a high-performance solar cell as used in concentrated photovoltaics (CPV), and equally to absorbers which are used in concentrated solar thermal energy systems (CSP). The invention in particular relates to the use of an UV- and weathering-stabilizer package for said laminated solar concentration devices, for improving optical lifetime and weathering resistance, and for preventing delamination. The invention further relates to a surface finish relevant to scratch resistance, antisoil properties, anti-reflection properties and chemicals resistance of the solar concentration device. | 11-21-2013 |
20130303678 | MATERIALS HAVING A CONTROLLABLE DEGREE OF CROSSLINKING - The present invention relates to innovative materials which can be crosslinked by means of two different crosslinking mechanisms, the first crosslinking mechanism being an irreversible crosslinking. The second crosslinking mechanism is a thermoreversible mechanism. | 11-14-2013 |
20130302342 | HUMAN LACTOFERRIN DERIVED PEPTIDE FOR USE AS AN ANTIGEN MASKING AGENT - The invention refers to a human lactoferrin derived peptide for use as an antigen masking agent in the production of a pharmaceutical composition for delivery of a biological active substance in a mammalian organism, where the biological active substance is able to induce an undesired immune response by the mammalian organism, where the pharmaceutical composition comprises a supramolecular aggregate of the biological active substance and the human lactoferrin derived peptide, with the effect that after delivery of pharmaceutical composition to the mammalian organism, there is no or only a diminished induction of the undesired immune response against the biological active substance. | 11-14-2013 |
20130291929 | LONG-LIFE OPTICAL CONCENTRATOR BASED ON A SPECIFIC FRESNEL LENS PRODUCED FROM POLYMERIC MATERIALS FOR SOLAR POWER GENERATION - The present invention relates to a concentrator for focusing solar radiation, having surface structuring in the form of one or more Fresnel lenses on the lower side, and to the production thereof from polymeric materials by means of a specific extrusion process. The inventive concentrator can be employed in plants utilizable for photovoltaic or solar heating purposes, and has the required durability and performance in demanding climatic zones. The inventive concentrator enables particularly economic production and efficient concentration of solar radiation onto objects such as solar cells or absorber units, irrespective of the geometry thereof. The inventive concentrator has high longevity and—combined with this—high optical performance when employed in extreme and demanding climatic zones. This relates, for example, to the area of a high-performance solar cell used in concentrating photovoltaics, and likewise to an absorber tube which finds use in concentrating solar thermal collector, for example in the context of parabolic trough technology. | 11-07-2013 |
20130289164 | IMPACT-MODIFIED REACTION RESIN - The present invention comprises a novel formulation for marking trafficways, for example roads, which when compared with the prior art have improved mechanical properties and improved heat resistance during curing. The invention also relates to improved reactive resins for other applications than roadmarkings. The present invention in particular relates to reactive resins which comprise core-shell particles. | 10-31-2013 |
20130281561 | POLYMETHACRYLIMIDE FOAMS HAVING A REDUCED RESIDUAL MONOMER CONTENT, AND PRODUCTION METHOD - The invention relates to a process for producing poly(meth)acrylimide foams and also blocks, sheets and the like composed of such poly(meth)acrylimide foams and also the intermediate articles formed from the copolymer of (meth)acrylic acid and (meth)acrylonitrile, which are all distinguished by a particularly low residual monomer content. | 10-24-2013 |
20130230677 | POLYPHENYLSULFONE-POLYTETRAFLUOROETHYLENE BLEND FOR ANTI-WEAR TAPES IN FLEXIBLE OIL PIPES - The invention relates to an improved blend of polyphenylsulfone (PPSU) and polytetrafluoroethylene (PTFE) for producing friction-reducing tapes (anti-wear tapes) used as a friction-reducing intermediate layer in flexible fluid pipes, e.g. oil pipes. | 09-05-2013 |
20130203918 | WEATHERING-RESISTANT, COLORED MOLDINGS WITH IMPROVED GLOSS AND WIPE RESISTANCE - The present invention relates to weathering-resistant, colored moldings made of poly(alkyl) (meth)acrylate with improved gloss and resistance to mechanical influences acting on the surface of the molding, in particular with improved wipe resistance and improved scratch resistance, and also to molding compositions for producing the same. | 08-08-2013 |
20130172598 | METHOD FOR PRODUCING ETHYLENE GLYCOL DIMETHACRYLATE - The present invention relates to a process for preparing ethylene glycol dimethacrylate, which comprises transesterification of ethylene glycol with an ester of methacrylic acid in the presence of catalysts, wherein a combination comprising lithium amide (LiNH | 07-04-2013 |
20130172480 | FUNCTIONAL MATERIALS HAVING A CONTROLLABLE VISCOSITY OR REVERSIBLE CROSSLINKING VIA AZA DIELS-ALDER REACTIONS WITH BISHYDRAZONES OR CONJUGATED BIS-SCHIFF BASES - The present invention relates to innovative materials which are reversibly crosslinkable by means of a thermoreversible mechanism and/or whose viscosity is reversibly adjustable. Through the use of bishydrazones or conjugated bis-Schiff bases as diene components in aza-Diels-Alder reactions, functional materials are generated that feature controllable viscosity and/or reversible crosslinking. | 07-04-2013 |
20130142877 | PHARMACEUTICAL DOSAGE FORM COMPRISING ONE OR MORE ANTIRETROVIRAL ACTIVE INGREDIENTS - The invention relates to a pharmaceutical dosage form comprising one or more antiretroviral active ingredients in the form of a solid dispersion or solid solution in a matrix, wherein said matrix comprises an amino(meth)acrylate copolymer, characterized in that the matrix does not contain any essential amounts of pharmaceutically acceptable surfactants with an HLB value from 12 to 18 and in that the matrix comprises a mono carboxylic acid or an alcohol with 12 to 22 carbon atoms or both. | 06-06-2013 |
20130129980 | PROCESS FOR SCRATCH- AND ABRASION-RESISTANT COATING AND PHYSICAL MATTING OF PLASTICS SUBSTRATES, MORE PARTICULARLY POLYMETHYL METHACRYLATE, WITH NANOCOMPOSITE COATING MATERIAL - The invention relates to a process for the surface-finishing of plastics substrates, preferably polymethyl methacrylate (abbreviated hereinafter to PMMA), by coating with a clear coating material comprising nanoparticles (hereinafter nanocomposite coating material) and irradiating the same with vacuum UV light of wavelength 172 nm from an Xe* excimer lamp. This process leads to excellent adhesion of the coating substance on the substrate. It is moreover possible to give the coating surface a topography. The mechanical and chemical properties and performance characteristics of uncoated substrate are substantially exceeded when a substrate is coated in this way. | 05-23-2013 |
20130108817 | PMI FOAMS WITH IMPROVED MECHANICAL PROPERTIES, IN PARTICULAR WITH INCREASED ELONGATION AT TEAR | 05-02-2013 |
20130108662 | PEPTIDES USEFUL AS CELL-PENETRATING PEPTIDES | 05-02-2013 |
20130096272 | PROCESS FOR PREPARING A (METH)ACRYLATE COPOLYMER CONTAINING TERTIARY AMINO GROUPS BY FREE-RADICAL POLYMERIZATION IN SOLUTION - The invention relates to a process for preparing a (meth)acrylate copolymer containing quaternary ammonium groups from a monomer mixture selected from: (a) 80 to 99% by weight of a C1-C4-alkyl ester of acrylic acid or methacrylic acid; and (b) 20 to 1% by weight of an alkyl ester of acrylic acid or methacrylic acid with a quaternary ammonium group in the alkyl radical; and (c) 0 to 10% of further copolymerizable vinyl monomers whereby one or more polymerization initiators, optionally one or more molecular weight regulators and one or more solvents or of a solvent mixture are added to the monomer mixture to give a polymerization mixture, which is polymerized at temperatures from 30 to 120 C over a period of 2 to 24 hours, where the polymerization mixture is polymerized to a polymerization syrup with a conversion of the monomers to the copolymer of at least 99% by weight, where the polymerization syrup is subsequently degassed by distillation or by extrusion and the degassed polymerization syrup is further comminuted to a copolymer preparation in the form of a granulate or powder and where the copolymer preparation is characterized by a molecular weight (Mw) of 25.000 to 50.000, a polydispersity index of 2.0 to 3.0 and a residual solvent concentration of less than 10.000 ppm by weight. | 04-18-2013 |
20130096244 | WATER-BASED LIQUID COLOR CONTAINING THERMOSTABLE DISPERSION ADDITIVES FOR THE COLORING POLY(METH)ACRYLATES - The invention relates to a method for coloring thermoplastic molding compounds, preferably a polymethyl(meth)acrylate molding compound, using novel aqueous colorant preparations. The invention further relates to a novel water-based colorant preparation. | 04-18-2013 |
20130096237 | COMPOSITE MATERIAL MADE OF A MATERIAL CONTAINING CELLULOSE WITH PMMA AS A PLASTIC MATRIX USING DIFFERENT COUPLING COMPONENTS - The invention relates to novel composite materials with improved mechanical properties and improved weathering resistance, said composite materials being made of at least one material containing cellulose, preferably wood, and at least one plastic, and to a method for producing said composite materials and for using same. | 04-18-2013 |
20130087201 | PRODUCTION OF SOLAR CELL MODULES - The invention relates to the use of a) at least one (poly)alkyl(meth)acrylate and b) at least one compound according to formula (I), wherein the radicals R | 04-11-2013 |
20130079439 | COMPOSITE MATERIAL MADE OF A MATERIAL CONTAINING CELLULOSE AND A PLASTIC MATERIAL - The invention relates to novel composite materials which are made of at least one material containing cellulose, preferably wood, and at least one plastic material, and which have improved mechanical and weather resistance properties. | 03-28-2013 |
20130074930 | POLYMETHYL (METH)ACRYLATE MOULDINGS FOR FLUORESCENCE CONVERSION, PRODUCTION OF THESE BY THE SHEET CASTING PROCESS AND USE IN SOLAR COLLECTORS - The invention relates to a combination of fluorescence conversion dyes in plastics mouldings made of polymethyl (meth)acrylate, where these are used to convert natural insolation into light that can be used by the solar cells. The plastics mouldings are polymerized by the casting process | 03-28-2013 |
20130059139 | TRANSPARENT, WEATHER-RESISTANT BARRIER FILM HAVING AN IMPROVED BARRIER EFFECT AND SCRATCH RESISTANCE PROPERTIES - The invention relates to the production of a transparent, weather-resistant barrier film by lamination, extrusion lamination (adhesive lamination, melt lamination or hotmelt lamination) or extrusion coating. The film can also contain a scratch-resistant coating. For this purpose, two or more transparent film composites, which consist in each case of two externally disposed polyolefin or polyester layers which are in each case inorganically coated and glued to the inorganic layer on the inside, are connected to each other. Said composite is laminated with a weather-resistant, transparent film (e.g. PMMA or PMMA polyolefin coextrudate or PMMA polyester coextrudate). The inorganic oxide layers have the property of a high optical transparency while having at the same time a good barrier effect against water vapour and oxygen while the PMMA layer exhibits weather resistance stability. | 03-07-2013 |
20130058986 | SOLID DOSAGE FORMS COMPRISING AN ENTERIC COATING WITH ACCELERATED DRUG RELEASE - The present invention provides a solid dosage form including an inner coating located between a core containing a pharmaceutically active ingredient and an outer enteric coating; wherein the inner coating includes a partially neutralized anionic polymeric material and at least a carboxylic acid having 2 to 16 carbon atoms, the salts thereof, or mixtures of the acid and its salt; wherein the outer coating includes an anionic polymeric material which is less neutralized than the material of the inner coating or not at all neutralized. | 03-07-2013 |
20130041056 | POLYMETHACRYLIMIDE FOAM MATERIALS HAVING REDUCED FLAMMABILITY AND METHOD FOR PRODUCING SAME - The invention relates to compositions for producing poly(meth)acrylamide foam materials having particularly reduced flammability. The present invention further relates to a method for the production, the processing and the use thereof. | 02-14-2013 |
20130011662 | MOLDING COMPOUND OR COATING SYSTEM (PMMA-FREE) HAVING IR-REFLECTING PROPERTIES IN COMBINATION WITH A SURFACE LAYER OR FILM CONTAINING PMMA - The invention relates to opaquely coloured, infrared-reflecting mouldings which are able to serve as an IR barrier layer and can be used, for example, in the construction trade or in automotive engineering as, for example, a vehicle roof module with thermal protection properties. | 01-10-2013 |
20130008585 | COATED SHEET-LIKE PLASTIC MATERIAL WITH REDUCED TENDENCY TO COLONIZATION BY ALGAE, PROCESS FOR THE IN-LINE PRODUCTION THEREOF AND USE - A coated sheet-like plastics material comprising a) as base, a thermoplastic substrate; and b) on the base, a photocatalytically active coating comprising a water-spreading layer which involves either a sol-adhesion-promoter layer, layer b1+2), comprising an adhesion promoter and a colloid sol, or a colloid-sol layer b2) arranged on an adhesion-promoter layer b1) applied on the substrate a), and a photocatalytically active layer b3) arranged on the water-spreading layer b1+2) or b2), where b3) is obtainable through application and drying of a mixture comprising, based on the solids content of the mixture in percent by weight b31) from 1 to 25% of titanium dioxide and b32) from 75 to 99% of silicon dioxide and/or of a metal oxide which is not soluble in water or of an anionically modified silicon dioxide or metal oxide; where the titanium dioxide is particulate with an average primary-particle size smaller than 10 nm. In-line process for producing said material, and also use as roofing material or as glazing material, preferably in areas with moist conditions. The coated sheet-like plastics material of the invention combines water-spreading properties with photocatalytic activity, without any damage to the thermoplastic substrates. The coated sheet-like plastics substrate of the invention is produced in a relatively uncomplicated, inexpensive and fast in-line process and, in use, provides impressive substrate stability and impressive effectiveness of the coating in resisting initial algal growth. | 01-10-2013 |
20130001825 | REACTIVE MIXTURE FOR COATING MOLDED OBJECTS BY MEANS OF REACTION INJECTION MOLDING AND COATED MOLDED OBJECT - A reactive mixture for coating mouldings by means of reaction injection moulding, containing at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture contains at least one photoinitiator and at least one thermal initiator. The present invention furthermore describes a coated moulding including a moulding which is obtainable by injection moulding processes and includes at least one polymer selected from polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer and polymethyl methacrylate copolymers, and a coating which is obtainable by polymerization of (meth)acrylates having at least two double bonds. The coating has an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%. | 01-03-2013 |
20120322932 | Composition with increased stress cracking resistance - Provided is a molding composition comprising, based on the total weight of the composition, (A) 50.0% by weight to 99.5% by weight of at least one (co)polymer which is a homopolymer or copolymer of at least 80% by weight of methyl methacrylate, (B) 0.5% by weight to 50.0% by weight of at least one copolymer obtained by polymerization of a monomer, and (C) at least one low molecular weight (meth)acrylate (co)polymer having a solution viscosity in chloroform at 25° C. (ISO 1628—part 6) of less than or equal to 55 ml/g. | 12-20-2012 |
20120321858 | MOLDINGS DESIGNED TO PREVENT FALLS - Molding composed of metal-network-reinforced plastic in the form of a domelight, and production process for same. | 12-20-2012 |
20120321857 | PROCESS FOR PRODUCING COATED MOLDED BODIES - The present invention relates to a process for producing coated mouldings with fully or partly structured surfaces. The present invention additionally describes a system for performing this process. | 12-20-2012 |
20120315334 | PHARMACEUTICAL OR NEUTRACEUTICAL FORMULATION - The invention relates to a pharmaceutical or nutraceutical formulation comprising a core, comprising an active pharmaceutical or nutraceutical ingredient, a penetration promoter and a bioavailability promoting agent, and a polymeric coating for the gastrointestinal targeted release of the active ingredient, characterized in that the bioavailability promoting agent is a pharmaceutically acceptable inhibitor of proteolytic enzymes, which increases the oral bioavailability of the active ingredient by a factor of at least five, compared to a corresponding formulation without the bioavailability promoting agent. | 12-13-2012 |
20120309895 | FUNCTIONAL MATERIALS WITH REVERSIBLE CROSSLINKING - The present invention relates to an innovative method for the reversible crosslinking of, for example, adhesives or coating materials. The reversible crosslinking method allows very rapid crosslinking even at room temperature and undoing of the crosslinks at higher temperatures, thereby regaining the capacity for thermoplastic processing and allowing the originally bonded substrates to be separated from one another again with ease. A particular aspect in this context is that a plurality of cycles of crosslinking and undoing of the crosslinks are possible with the present system. | 12-06-2012 |
20120308801 | CHEMICAL-RESISTANT FILMS IN HIGH OPTICAL QUALITY - The present invention relates to a process for producing transparent polymeric films or plastics mouldings of particularly high chemical resistance, having more particularly a very good resistance towards oil-in-water and water-in-oil emulsions, and of high optical quality. | 12-06-2012 |
20120296004 | REACTIVE MIXTURE FOR COATING MOLDED OBJECTS BY MEANS OF REACTION INJECTION MOLDING AND COATED MOLDED OBJECT - The invention relates to an injection moulding machine containing a reactive mixture including at least 40% by weight of (meth)acrylates having at least two double bonds, at least one photoinitiator, and at least one thermal initiator. | 11-22-2012 |
20120289657 | FUNCTIONAL MATERIALS WITH CONTROLLABLE VISCOSITY - The present invention relates to an innovative method for controlling the viscosity of, for example, adhesives or coating formulations. The method for controlling viscosity allows very rapid thermoplastic curing of a formulation even at room temperature and a significant reduction in the viscosity at higher temperatures, thereby regaining the capacity for simple processing and allowing, for example, the originally bonded substrates to be separated from one another again with ease. A particular aspect in this context is that a plurality of cycles of thermoplastic curing and a significant reduction in the viscosity are possible with the present system. | 11-15-2012 |
20120288706 | REACTIVE MIXTURE FOR COATING MOLDED OBJECTS BY MEANS OF REACTION INJECTION MOLDING AND COATED MOLDED OBJECT - A reactive mixture for coating moldings by reaction injection molding includes at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture also includes at least one photoinitiator and at least one thermal initiator. Furthermore, a coated molding includes a molding obtainable by injection molding processes. The molding includes polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer, polymethyl methacrylate copolymer, or a combination thereof. A coating is obtainable by polymerization of (meth)acrylates having at least two double bonds, the coating having an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%. | 11-15-2012 |
20120282396 | OPAQUELY COLORED, INFRA-RED PLASTICS MOLDING COMPOSITION AND METHODS OF MAKING THE OPAQUELY COLORED, INFRA-RED PLASTICS MOLDING COMPOSTION - The invention relates to subduedly colored (brown, gray, black, green), infrared reflecting PMMA compounds which can be applied to other plastic compounds as an IR barrier layer | 11-08-2012 |
20120269963 | FORMULATIONS FOR PRODUCING ROADWAY MARKINGS WITH ADHESION ON DRY AND DAMP CONCRETE - The invention comprises a novel formulation for marking roadways, consisting of different subsurfaces such as, for example, concrete. The invention also relates to a formulation for marking roadways, which can be applied both to damp and to dry surfaces. | 10-25-2012 |
20120264182 | USE OF A PROTEIN HOMOLOGOUS TO A MEAB PROTEIN FOR INCREASING THE ENZYMATIC ACTIVITY OF A 3-HYDROXYCARBOXYLIC ACID-COA MUTASE - The invention relates to the use of a protein homologous to a MeaB protein for increasing the enzymatic activity of a 3-hydroxycarboxylic acid-CoA mutase, a fusion protein comprising a 3-hydroxycarboxylic acid-CoA mutase and a protein sequence homologous to a MeaB protein and an enzymatic method for producing 2-hydroxyisobutryric acid. | 10-18-2012 |
20120232305 | METHOD FOR PRODUCING A CARBOXYLIC ACID AMIDE FROM A CARBONYL COMPOUND AND HYDROCYANIC ACID - The invention relates to a method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid, comprising the steps of A) reacting a carbonyl compound with hydrocyanic acid to produce a hydroxycarboxylic acid nitrile, B) hydrolysis of the hydroxycarboxylic acid nitrile obtained in step A) in the presence of a catalyst comprising manganese dioxide, wherein a molar excess of carbonyl compound is used in relation to the hydrocyanic acid to react the carbonyl compound with hydrocyanic acid according to step A), and the reaction mixture obtained in step A) is not purified by distillation before the hydrolysis according to step B) is carried out. The invention furthermore relates to a method for producing alkyl(meth)acrylates from polymers, moulding compounds and moulded bodies, wherein a method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid is carried out in accordance with the method described above. | 09-13-2012 |
20120232222 | METHOD FOR PRODUCING 1-ALKOXY-2-METHYL-1-OXOPROPAN-2-YL (METH)ACRYLATE - The invention provides a process for preparing 1-alkoxy-2-methyl-1-oxopropan-2-yl(meth)acrylate, e.g. 1-methoxy-2-methyl-1-oxopropan-2-yl(meth)acrylate, by transesterifying alkyl α-hydroxyisobutyrates. Copolymerization of such monomers in the preparation of poly(meth)acrylate-based moulding materials improves the heat distortion resistance thereof. | 09-13-2012 |
20120226006 | NOVEL INITIATION METHOD FOR POLYMERIZING (METH)ACRYLATES - The invention relates to a novel polymerization method for (meth)acrylates, wherein the polymerization is initiated by isocyanates and special bases having an imine structure. By means of said novel method that can be deliberately employed, even high-molecular-weight poly(meth)acrylates having in part a narrow molecular weight distribution can be produced. Furthermore, a wide variety of polymer architectures, such as block, star or comb polymers, are available using said novel polymerization method. | 09-06-2012 |
20120208832 | PROCESS FOR CONVERTING A SOLID (METH)ACRYLATE COPOLYMER INTO A DISPERSED FORM BY MEANS OF A DISPERSING AGENT - The present invention provides a process for converting a solid (meth)acrylate copolymer into a dispersed form by preparing an aqueous dispersion comprising the components (a) a (meth)acrylate copolymer which is composed of free-radical polymerized methyl methacrylate, ethylacrylate and a salt of 2-trimethylammoniumethyl methacrylate, present in solid form as a powder or as a granulate, (b) up to 50% by weight calculated on the (meth)acrylate copolymer (a) of a dispersing agent selected from the groups of (b) i) plasticizers in combination with emulsifiers and/or (b) ii) pharmaceutically acceptable carbohydrates having 6 to 18 carbon atoms with a functional group and (c) water by mixing the components (a), (b) and (c) to give a suspension which becomes an aqueous dispersion during the conversion of the solid (meth)acrylate copolymer into the dispersed form, characterized in that, the (meth)acrylate copolymer is converted into the dispersed form by means of the presence of the dispersing agent at a temperature of less than 50° C. | 08-16-2012 |
20120190755 | REACTIVE 1-COMPONENT ROADWAY MARKING - The invention relates to a one-component, storage-stable formulation for marking road surfaces. The invention in particular relates to a formulation for roadway marking comprising encapsulated radical initiators which do not influence the storage stability of the roadway marking and are simple to break open upon application in order to release the initiator. | 07-26-2012 |
20120172563 | HOMOPOLYMERS AND COPOLYMERS OF HYDROXYISOBUTYRIC ACID (ESTER) (METH)ACRYLATES - The invention relates to novel poly(meth)acrylates for producing moulding compositions. In particular, the invention relates to novel methacrylates having ester groups which, in the cleavage process, liberate at most only a very small amount of components which are not re-copolymerizable. Copolymerization of monomers of this type in the production of the novel poly(meth)acrylates for moulding compositions brings about only minimal alteration of the heat resistance of these materials or may indeed improve the same. | 07-05-2012 |
20120171492 | ENCAPSULATION OF REACTIVE COMPONENTS FOR 1-K SYSTEMS USING COAXIAL DIES - The invention relates to the production of core-shell particles for encapsulating reactive components for single-component resin systems. In particular, the invention relates to the encapsulation of radical initiators such as peroxides. The invention further relates to a method for the 100% encapsulation of reactive components, whereby novel, storage-stable resin systems can be provided. At the same time, the core-shell particles are designed such that they can be opened nearly completely, easily and quickly during application, but have sufficient storage and shear stability before application. | 07-05-2012 |
20120171452 | DEVICE AND METHOD FOR PRODUCING THICK-WALLED MOULDED PLASTICS PARTS HAVING REDUCED SHRINKAGE SITES BY INJECTION MOLDING OR EMBOSSING - The invention relates to a device and method for producing thick-walled plastic molded parts by injection molding or embossing. The device comprises a mold for injection molding or embossing, having a cavity, and is characterized in that the mold comprises a wall region adjacent to the cavity, and a body removed from the cavity and adjacent to the wall region near the cavity, wherein the body of the mold is designed for a temperature T | 07-05-2012 |
20120164462 | INTUMESCENT COATING COMPOSITION WITH ENHANCED METAL ADHESION - An intumescent coating composition and a process for curing the coating to obtain an intumescent coating is provided. The intumescent coating composition contains a thermoplastic polymer which comprises as a copolymerized component, an acid (meth)acrylate or a copolymerizable polyfunctional carboxylic acid; at least one ethylenically unsaturated monomer; an azo or organic peroxide initiator; an acid source; a carbon source; and a gas source. | 06-28-2012 |
20120157613 | BULK POLYMERIZATION OF (METH)ACRYLATE COPOLYMERS SOLUBLE UNDER AQUEOUS-ALKALINE CONDITIONS - The invention relates to the synthesis of (meth)acrylate-based mass polymers which are soluble in aqueous alkaline. The invention in particular relates to the synthesis of polymers by means of a mass polymerization. Said mass polymers have a significantly improved solubility in aqueous alkaline media over corresponding polymers produced by means of a heterogeneous aqueous polymerization method, such as emulsion or suspension polymerization. Improved solubility in said context refers to the dissolution rate being faster among particles of equal size, to no significant turbidity remaining after dissolution and to the viscosity of the obtained solutions being lower at the identical ratio of solids content. Furthermore, the compatibility of the compounds according to the invention with water-based varnishes is at least comparable or even improved. | 06-21-2012 |
20120145942 | Hydrogel - The invention relates to hydrogels containing water and polyethylene glycol-dimethacrylates in a polymerized form. The polymethacrylate blocks are so short that they form no proper phase. The invention further relates to methods for producing said hydrogels. The inventive hydrogels are provided with reduced haze and are used as materials for contact lenses, electrophoresis gels, membrane materials, and sound-absorbing materials. | 06-14-2012 |
20120143039 | ORAL DOSAGE FORM, COMPRISING AT LEAST ONE BIOLOGICALLY ACTIVE AGENT, FORMULATION AUXILIARY SUBSTANCES AND MAGNETIZABLE PARTICLES - The invention relates to an oral dosage form, comprising at least one biologically active agent, formulation auxiliary substances and magnetizable particles, wherein the dosage form has an at least two phase composition, wherein the phases can dissolve in the body after oral administration due to their formulation and the magnetizable particles are bound in formulation auxiliary substances and are present in a magnetized state, wherein the magnetized particles are present in at least two phases of the dosage form and generate magnetic fields, wherein these phases dissolve at different times in the body after oral administration, and wherein the magnetic field strength with respect to time, position and movement in the body is acquired using a detection system and can be evaluated using a computer-based evaluation system. | 06-07-2012 |
20120114890 | POLYPHENYLSULPHONE-POLYTETRAFLUOROETHYLENE COMPOSITIONS AND USE THEREOF - The invention relates to a method for producing plastic molded bodies, characterised in that the two plastic materials PPSU and PTFE are mixed with one another at a temperature of 340 degrees Celsius to 385 degrees Celsius in an extruder, the resulting compound is granulated and the granules are extruded into plastic molded bodies at a screw temperature of 370 degrees Celsius to 390 degrees Celsius. The plastic molded bodies obtained are used as anti-wear tapes in oil delivery pipes. | 05-10-2012 |
20120108735 | PROCESS AND SYSTEM FOR COLOURING PLASTICS MOULDING COMPOSITIONS - The present invention relates to a process for producing coloured plastics moulding compositions with aqueous liquid colours, where an aqueous liquid colour is added to a molten plastics moulding composition. | 05-03-2012 |
20120107493 | BINDING AGENT FOR PRODUCING ROAD MARKINGS READY QUICKLY FOR TRAFFIC - The present invention comprises a novel formulation for marking travel lanes, such as roads, which following the application can be reopened for traffic after a waiting period that is shortened as compared to the prior art. | 05-03-2012 |
20120093926 | GASTRIC RESISTANT PHARMACEUTICAL OR NUTRACEUTICAL FORMULATION COMPRISING ONE OR MORE SALTS OF ALGINIC ACID - The invention relates to a gastric resistant pharmaceutical or nutraceutical composition, comprising a core, comprising a pharmaceutical or nutraceutical active ingredient and a gastric resistant coating layer onto the core, wherein the release of the pharmaceutical or nutraceutical active ingredient is not more than 15% under in-vitro conditions at pH 1.2 for 2 hours in medium according to USP with and without the addition of 40% (v/v) ethanol, wherein the gastric resistant coating layer comprises 10 to 100% by weight of one or more salts of alginic acid with a viscosity of 30 to 720 cP of a 1% aqueous solution | 04-19-2012 |
20120093904 | COMPOSITION COMPRISING AN ANIONIC POLYMERIC MATERIAL AND THE SALT OF A SATURATED MONOCARBOXYLIC ACID HAVING 6 TO 22 CARBON ATOMS - The invention relates to a coating composition for the coating or binding of pharmaceutically, nutraceutically or cosmetically active ingredients, comprising (a) an anionic polymeric material, and (b) one or more salts of saturated monocarboxylic acids having 6 to 22 carbon atoms, characterized in that the amount of the salts of the monocarboxylic acids in the composition corresponds to 3 to 50 mol percent of the amount of anionic groups in the polymeric material. The invention also relates to a process for preparing a dispersion out of the composition, as well as the use of said composition in enteric-coated solid dosage forms. | 04-19-2012 |
20120093903 | POWDERY OR GRANULATED COMPOSITION COMPRISING A COPOLYMER, A SALT OF A FATTY MONOCARBOXYLIC ACID AND A FATTY MONOCARBOXYLIC ACID AND/OR A FATTY ALCOHOL - The invention relates to a powdery or granulated composition comprising at least by 30% by weight of a mixture of (a) a copolymer composed of polymerized units of C | 04-19-2012 |
20120087977 | AQUEOUS CARBONATED MEDIUM CONTAINING AN AMINO(METH)ACRYLATE POLYMER OR COPOLYMER - The invention relates to an aqueous medium containing an amino(meth)acrylate polymer or copolymer which is not soluble in demineralised water, characterized in that the medium has a content of an aqueous phase of at least 60% by weight and a content of up to 40% by weight of solids comprising the amino(meth)acrylate polymer or copolymer, whereby the aqueous phase is charged by a sufficient amount of carbon dioxide that effects the amino(meth)acrylate polymer or copolymer to be present in solute form in the medium. The aqueous medium may be used beneficially as a coating or binding solution for the spray coating or binding of pharmaceutical compositions or nutraceutical compositions or cosmetical compositions. | 04-12-2012 |
20120085980 | Process for preparing a photochromic polymeric composition, thus obtained polymeric composition and use thereof - The present invention discloses a process for preparing a photochromic polymeric composition, characterized in that the photochromic polymeric composition is prepared by comprising (meth)acrylamide compound in the reaction mixture useful for the preparation of the photochromic polymeric composition. The present invention also relates to the thus obtained polymeric composition, photochromic articles made from said polymeric composition, and use of said polymeric composition for preparing photochromic articles. The photochromic polymeric composition according to the present invention makes the absorption peak of the photochromic dye therein become longer, thus exhibiting a desired grey with a bit bluish green or grey with a bit blue. | 04-12-2012 |
20120071565 | POWDERY OR GRANULATED COMPOSITION COMPRISING A COPOLYMER, A DICARBOXYLIC ACID AND A FATTY MONOCARBOXYLIC ACID - A powdery or granulated composition, containing: (a) a copolymer containing, in polymerized form, a C | 03-22-2012 |
20120067512 | LIGHT GUIDE PLATE HAVING EMBEDDED IMPURITIES AND METHOD FOR THE PRODUCTION THEREOF - The invention relates to light guide plates, which are suitable for backlighting LCD monitors as well as information and advertising signs and which are illuminated at the edges and re-emit the light fed at the edges via at least one of the two surfaces located perpendicular to the edges. For the light of a light source that is fed at the edges to be able to leave the light guide plate again via one of the surfaces by overcoming total reflection, the light rays in the light guide plate have to be deliberately deflected. At one of the two surfaces of the light guide plate, the light guide plates are provided with optical impurities ( | 03-22-2012 |
20120065322 | (METH)ACRYLATE POLYMER, COATING AGENT, METHOD FOR PRODUCING A COATING, AND COATED OBJECT - The present invention relates to a (meth)acrylate polymer for preparing a coating composition, where the (meth)acrylate polymer has a weight-average molecular weight in the range from 10 000 to 60 000 g/mol and the (meth)acrylate polymer comprises 0.5 to 40% by weight of units derived from (meth)acrylic monomers which in the alkyl radical have at least one double bond and 8 to 40 carbon atoms, 0.1 to 10% by weight of units derived from monomers containing acid groups, and 50 to 99.4% by weight of units derived from (meth)acrylates having 1 to 12 carbon atoms in the alkyl radical that have no double bonds or heteroatoms in the alkyl radical, and these (meth)acrylates having 1 to 12 carbon atoms in the alkyl radical are selected such that a polymer composed of these (meth)acrylates having 1 to 12 carbon atoms in the alkyl radical has a glass transition temperature of at least 40° C., based in each case on the weight of the (meth)acrylate polymer. | 03-15-2012 |
20120045506 | CONTROLLED RELEASE PHARMACEUTICAL COMPOSITION WITH RESISTANCE AGAINST THE INFLUENCE OF ETHANOL EMPLOYING A COATING COMPRISING NEUTRAL VINYL POLYMERS AND EXCIPIENTS - The invention relates to a controlled release pharmaceutical composition, comprising a core, comprising a pharmaceutical active ingredient, whereby the core is coated by an ethanol resistance conferring coating layer which has the effect of conferring the release profile of the pharmaceutical active ingredient to be resistant against the influence of ethanol, whereby the ethanol resistance conferring coating layer comprises at least 70% by weight of a mixture of a polymeric portion a) and an excipients portion b), with the polymeric portion a) is consisting of a water insoluble essentially neutral vinyl polymer or vinyl copolymer and the excipients portion b) is consisting of the excipients b1) 100 to 250% by weight of a non-porous inert lubricant, b2) 1 to 35% by weight of a cellulosic compound, b3) 0.1 to 25% by weight of an emulsifier and additionally or alternatively to b3), b4) 0.1 to 30% by weight of a plasticizer whereby the excipients of the excipients portion b) are each calculated on the dry weight of the polymer portion a). | 02-23-2012 |
20120021236 | TRANSPARENT, WEATHERING-RESISTANT BARRIER FOIL, PRODUCTION THEREOF BY MEANS OF LAMINATION, EXTRUSION LAMINATION OR EXTRUSION COATING - The invention relates to a barrier foil, wherein a barrier composite ( | 01-26-2012 |
20120016071 | POLYFUNCTIONAL (METH)ACRYLIC POLYMER, COATING COMPOSITION, PROCESS FOR PRODUCING A COATING AND COATED ARTICLE - The present invention relates to a (meth)acrylate polymer for preparing a coating composition, where the (meth)acrylate polymer comprises
| 01-19-2012 |
20120015141 | MOULDING COMPOUND FOR MOULDINGS WITH HIGH WEATHER RESISTANCE - A moulding compound comprises a copolymer (I)a), produced by polymerisation of 90-100% by weight methylmethacrylate, styrene and malic acid anhydride, and optionally 0-10% by weight additional monomers which can be copolymerised with methylmethacrylate, a (co)polymer (II)b), produced by polymerisation of 80-100% by weight methylmethacrylate and optionally 0-20% by weight additional monomers which can be copolymerised with methylmethacrylate, and has a solution viscosity in chloroform at 25° C. (ISO 1628 Part 6) of 50 to 55 ml/g, as well as c) optional conventional additives, auxiliary agents and/or fillers. The moulding compound is characterised in that the copolymer (I) has a solution viscosity in chloroform at 25° C. (ISO 1628 Part) of 55 ml/g or less. Also disclosed are mouldings produced by thermoplastic processing of the moulding compound and their uses. | 01-19-2012 |
20120010430 | METERING RING - The present invention relates to an apparatus for metering flowable media or gases, and to the use thereof. | 01-12-2012 |
20120010317 | (METH)ACRYLATE POLYMERS AND THE USE THEREOF AS POLYMER-BOUND UV INITIATORS OR ADDITIVE TO UV-CURABLE RESINS - The invention relates to a
| 01-12-2012 |
20120004460 | METHOD FOR PRODUCING METHACRYLIC ACID - The present invention relates to a method for producing methacrylic acid by reacting methacrylamide with water, wherein said reaction is performed continuously in a tube reactor and a pressure differential exists in the flow direction of the reaction mixture inside said tube reactor. Furthermore, the present invention discloses a facility for carrying out the method according to the invention. | 01-05-2012 |
20110319514 | COMPOSITION COMPRISING AS THE AQUEOUS DISPERSION PREFERABLY (METH)ACRYLATE POLYMERS CONTAINING BENZOPHENONE IN A MIXTURE WITH (METH)ACRYLATE POLYMERS DIFFERENT THEREFROM AND THE USE OF SAID COMPOSITION - The invention describes a composition comprising, in the form of aqueous dispersion, A) for every 100 parts by weight of a, or of a plurality of, (meth)acrylate polymer(s); B) from 1-400 parts by weight of a, or of a plurality of, (meth)acrylate polymer(s), which contain(s) a compound of the formula (I) copolymerized, where the (meth)acrylate polymer(s) B) differ from the (meth)acrylate polymers specified in A), where these are obtainable by emulsion polymerization of a mixture comprising
| 12-29-2011 |
20110318595 | COATING COMPOSITION, (METH)ACRYLIC POLYMER AND MONOMER MIXTURE FOR PRODUCING THE (METH)ACRYLIC POLYMER - The present invention relates to a coating composition comprising at least one photo-initiator and at least one (meth)acryl-polymer having units that are derived from (meth)acryl-monomers that have at least one double bond and 8 to 40 carbon atoms in the alkyl residue. The present invention furthermore relates to a monomer mixture comprising at least one (meth)acryl-monomer having at least one double bond and 8 to 40 carbon atoms in the alkyl residue and at least one photo-initiator monomer and a (meth)acryl-polymer that can be obtained by polymerization of said monomer mixture. The present invention furthermore relates to a method for producing a coating. The present invention furthermore relates to a coated object comprising a coating obtained by said method. | 12-29-2011 |
20110306784 | METHOD FOR PRODUCING A CARBOXYLIC ACID AMIDE FROM A CARBONYL COMPOUND AND HYDROCYANIC ACID - The invention relates to a method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid, comprising the steps of A) reacting a carbonyl compound with hydrocyanic acid to produce a hydroxycarboxylic acid nitrile, B) hydrolysis of the hydroxycarboxylic acid nitrile obtained in step A) in the presence of a catalyst comprising manganese dioxide, wherein a molar excess of carbonyl compound is used in relation to the hydrocyanic acid to react the carbonyl compound with hydrocyanic acid according to step A), and the reaction mixture obtained in step A) is not purified by distillation before the hydrolysis according to step B) is carried out. The invention furthermore relates to a method for producing alkyl(meth)acrylates from polymers, moulding compounds and moulded bodies, wherein a method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid is carried out in accordance with the method described above. | 12-15-2011 |
20110306783 | COMPOSITION STABILIZED FOR PURIFICATION AND METHOD FOR PURIFYING AND FOR PRODUCING HYDROXYALKYL (METH)ACRYLATES - The present invention relates to a composition which comprises at least one hydroxyalkyl(meth)acrylate and has been stabilized for a purification, which comprises hydroquinone monomethyl ether and 4-hydroxy-2,2,6,6-tetramethylpiperidine N-oxyl. The present invention additionally describes processes for purifying and for preparing hydroxyalkyl(meth)acrylates. A further aspect of the present invention is a composition which is obtainable by the processes mentioned. | 12-15-2011 |
20110303277 | TRANSPARENT, WEATHERING-RESISTANT BARRIER FILM, PRODUCTION BY LAMINATION, EXTRUSION LAMINATION OR EXTRUSION COATING - The invention relates to a barrier film, in which a backing film ( | 12-15-2011 |
20110290300 | PRODUCTION OF SOLAR CELL MODULES - The invention relates to the use of a) at least one polyalkyl(meth)acrylate and b) at least one compound according to formula (I), where the groups R | 12-01-2011 |
20110288267 | Method and Device for Cleaning an Absorptive Polyester - In a method for cleaning an absorptive polyester, the polymer is dissolved in a first solvent ( | 11-24-2011 |
20110282007 | METHOD FOR PRODUCING ABA-TRIBLOCK COPOLYMERS WITH A WIDELY DISTRIBUTED B-BLOCK - The invention relates to a controlled polymerization method for producing ABA-triblock copolymers on the basis of (meth)acrylate with A-blocks having a narrow, monomodal molecular weight distribution, and a B-block having a wide, monomodal molecular weight distribution. The invention further relates to the use thereof as binders in glues or sealing compounds. | 11-17-2011 |
20110281999 | PROCESS FOR PREPARING AB DIBLOCK COPOLYMERS WITH A BROADLY DISTRIBUTED A BLOCK - The invention relates to a controlled polymerization process for preparing (meth)acrylate-based AB diblock copolymers with a B block which has a narrow monomodal molecular weight distribution, and an A block which has a broad monomodal molecular weight distribution, and to the use thereof, for example, as a binder in adhesives or sealants. | 11-17-2011 |
20110281054 | POLYOLEFIN GRAFT POLY(METH)ACRYLATE COPOLYMER-BASED PRIMING AGENT FOR POLYOLEFIN SURFACES - The invention relates to a novel halogen-free and acid-free, readily soluble priming bonding agent for polyolefins, said agent containing (meth)acrylate-grafted, amorphous polyolefins. | 11-17-2011 |
20110269913 | METHOD FOR PRODUCING TELECHELICS HAVING A WIDE MOLECULAR WEIGHT DISTRIBUTION - The invention relates to a controlled polymerization method for producing telechelics on the basis of (meth)acrylate, which have a wide, monomodal molecular weight distribution, and to the use thereof as binders in glues or sealing materials. | 11-03-2011 |
20110269883 | MOULDING COMPOUNDS FOR THE PRODUCTION OF SOLAR CELL MODULES - Moulding composition, encompassing
| 11-03-2011 |
20110263806 | COPOLYMER FOR PRODUCING MOLDED BODIES THAT ARE DIMENSIONALLY STABLE UNDER HEAT FROM MOLDING COMPOUNDS OR CAST GLASS - The invention relates to a copolymer for producing molded compounds or cast glass for the production of molded bodies having increased dimensional stability under heat, obtainable from the copolymerization of A) one or more ethylenically unsaturated ester compounds of the formula (I), where R | 10-27-2011 |
20110260125 | PROCESS FOR PREPARING A PHOTOCHROMIC POLYMERIC COMPOSITION, THUS OBTAINED POLYMERIC COMPOSITION AND USE THEREOF - The present invention discloses a process for preparing a photochromic polymeric composition, characterized in that the photochromic polymeric composition is prepared by comprising (meth) acrylamide compound in the reaction mixture useful for the preparation of the photochromic polymeric composition. The present invention also relates to the thus obtained polymeric composition, photochromic articles made from said polymeric composition, and use of said polymeric composition for preparing photochromic articles. The photochromic polymeric composition according to the present invention makes the absorption peak of the photochromic dye therein become longer, thus exhibiting a desired grey with a bit bluish green or grey with a bit blue. | 10-27-2011 |
20110218312 | METHOD FOR PRODUCING N-ISOPROPYL(METH)ACRYLAMIDE - A novel process is described which allows N-isopropyl(meth)acrylamide to be obtained in high purity and yield in a simple manner, by reacting methacrylic anhydride with isopropylamine, optionally in a solvent. | 09-08-2011 |
20110218291 | PROCESS FOR PREPARING AQUEOUS DISPERSIONS - The present invention relates to a process for preparing aqueous dispersions. The invention also relates to the formation of core-shell particles in aqueous dispersions. The core-shell particles are useful as impact-modifiers for poly(meth)acrylate moulding compositions. | 09-08-2011 |
20110213091 | METHOD FOR PRODUCING TELECHELICS HAVING A BIMODAL MOLECULAR WEIGHT DISTRIBUTION - The invention relates to a controlled polymerization method for producing telechelics on the basis of (meth)acrylate, which have a bimodal molecular weight distribution, and to the use thereof as binders in glues or sealing compounds. | 09-01-2011 |
20110207876 | METHOD FOR PRODUCING ABA-TRIBLOCK COPOLYMERS WITH A BIMODAL B-BLOCK - The invention relates to a controlled polymerization method for producing ABA-triblock copolymers on the basis of (meth)acrylate with A-blocks which have a narrow, monomodal molecular weight distribution and a B-block which has a bimodal molecular weight distribution, and to the use thereof as binders in glues and sealing materials | 08-25-2011 |
20110196169 | METHOD FOR PRODUCING METHACRYLATED BENZOPHENONES - The invention relates to a method for producing methacrylated benzophenones and to the uses thereof. | 08-11-2011 |
20110189742 | METHOD FOR THE PRODUCTION OF FREE CARBOXYLIC ACIDS - A process for the preparation of free carboxylic acids including: A) preparation of carboxylic acid by a biological cell located in an aqueous medium with addition of an amine of formula (I) | 08-04-2011 |
20110188336 | DRIVE ARRANGEMENT IN A DEGASSING EXTRUDER - The invention relates to a vented extruder ( | 08-04-2011 |
20110171702 | RECOMBINANT CELL PRODUCING 2-HYDROXYISOBUTYRIC ACID - The invention relates to a cell which has been genetically modified so as to be capable of producing more 2-hydroxyisobutyric acid or more polyhydroxyalkanoates containing 2-hydroxyisobutyric acid monomer units than its wild type, characterized in that 2-hydroxyisobutyric acid or polyhydroxyalkanoates containing 2-hydroxyisobutyric acid monomer units are produced via acetoacetyl-coenzyme A as intermediate and 3-hydroxybutyryl-coenzyme A as precursor. | 07-14-2011 |
20110171101 | REACTOR FOR PREPARING HYDROGEN CYANIDE BY THE ANDRUSSOW PROCESS - The present invention relates to a reactor ( | 07-14-2011 |
20110165640 | METHOD FOR THE ENZYMATIC PRODUCTION OF 2-HYDROXY-2-METHYL CARBOXYLIC ACIDS - Provided is a composition containing: an isolated and purified polypeptide containing the amino acid sequence of SEQ ID NO: 4; and/or a heterodimeric enzyme containing: the isolated and purified polypeptide containing the amino acid sequence of SEQ ID NO: 4; and an isolated and purified polypeptide containing the amino acid sequence of SEQ ID NO: 2. Also provided is a process for producing a 2-hydroxy-2-methyl carboxylic acid or a salt or ester thereof, wherein the process involves: contacting a 3-hydroxy carboxylic acid or a salt or ester thereof with the above-mentioned composition to produce the 2-hydroxy-2-methyl carboxylic acid or the salt or ester thereof. | 07-07-2011 |
20110144267 | FUNCTIONALIZED (METH)ACRYLATE MONOMER, POLYMER, COATING AGENT, AND PRODUCTION AND CROSS-LINKING METHOD - The present invention relates to a (meth)acrylate monomer of the general formula (I) | 06-16-2011 |
20110136975 | MONOMER MIXTURE, POLYMER, COATING MEANS AND METHOD FOR PRODUCING A COATING - The present invention relates to a monomer mixture comprising
| 06-09-2011 |
20110136964 | COLORING PROCESS FOR POLY (METH) ACRYLATES WITH WATER-BASED LIQUID DYES AND WATER-BASED LIQUID DYES - The invention relates to an aqueous colorant preparation for coloring thermoplastic plastics. | 06-09-2011 |
20110130590 | METHOD FOR THE PRODUCTION OF (METH)ACRYLIC ESTERS - The present invention relates to a process for preparing (meth)acrylates, comprising the transesterification of a low-boiling ester of (meth)acrylic acid with a reactant alcohol in the presence of catalysts, which is characterized in that the transesterification is catalysed by a basic ion exchanger. | 06-02-2011 |
20110130509 | (METH)ACRYLATE MONOMER, POLYMER AND COATING AGENT - The present invention relates to a (meth)acrylate monomer of the general formula (I) | 06-02-2011 |
20110118504 | THERMAL SALT SPLITTING OF AMMONIUM CARBOXYLATES - The present invention relates to a process for preparing hydroxycarboxylic acids, preferably α- and β-hydroxycarboxylic acids, from ammonium carboxylates of the general formula | 05-19-2011 |
20110111238 | IMPROVED ADHESIVE AGENTS FOR PLASTISOLS - The invention relates to plastisols which even without the addition of adhesion promoters exhibit high adhesion to metallic and cathodically deposition-coated substrates. | 05-12-2011 |
20110086984 | METHOD FOR PRODUCING SILYL-FUNCTIONALIZED ABA TRIBLOCK COPOLYMERS ON THE BASIS OF (METH)ACRYLATE - The invention relates to a process for preparing (meth)acrylate-based ABA triblock copolymers with a silyl functionalization of the A blocks. | 04-14-2011 |
20110082314 | METHOD FOR PRODUCING POLYALKYLENE GLYCOLDI(METH)ACRYLATES - The present invention relates to a process for preparing polyalkylene glycol di(meth)acrylates by reacting polyalkylene glycol with (meth)acrylic anhydride, wherein the reaction mixture contains at most 0.5% by weight of metal compounds and/or amines, the reaction is carried out in the presence of polymerization inhibitors and the reaction temperature is at least 60° C. | 04-07-2011 |
20110070302 | COATED PHARMACEUTICAL OR NUTRACEUTICAL PREPARATION WITH ACCELERATED CONTROLLED ACTIVE SUBSTANCE RELEASE - The present invention relates to pharmaceutical or nutraceutical preparations comprising a) a core containing a pharmaceutically or nutraceutically active substance; and b) a controlling layer surrounding the core comprising
| 03-24-2011 |
20110060159 | PROCESS FOR PREPARING CARBOXAMIDES BY HYDROLYSING CARBONITRILES IN THE PRESENCE OF A CATALYST COMPRISING MANGANESE DIOXIDE - The present invention relates to a process for preparing carboxamides by hydrolysing carbonitriles in the presence of a catalyst comprising manganese dioxide, wherein the reaction mixture added to the catalyst comprising manganese dioxide has a pH in the range of 6.0 to 11.0 and the hydrolysis is performed in the presence of an oxidizing agent. | 03-10-2011 |
20110046332 | HYDROGEL BASED ON COPOLYMERS CONTAINING SILICONE - The invention relates to a hydrogel which is a copolymer formed from a polymerizable monomer mixture which contains
| 02-24-2011 |
20110039977 | AQUEOUS DISPERSIONS COMPRISING AT LEAST ONE ALKYD RESIN - The present invention relates to an aqueous dispersion comprising at least one alkyd resin
| 02-17-2011 |
20110034728 | CATALYST FOR REACTING CARBOXYLIC ACID NITRILES - The present invention relates to a catalyst for reacting carbonitriles with water, wherein the catalyst comprises at least 60% by weight of manganese dioxide with an empirical formula MnO | 02-10-2011 |
20110034623 | METHOD FOR PREPARATION OF PENTA-BLOCK COPOLYMERS WITH OH-FUNCTIONALIZED BLOCKS BASED ON (METH)ACRYLATE - The invention relates to a process for preparing CABAC or ACBCA pentablock copolymers based on (meth)acrylate with an OH functionalization of the A blocks. | 02-10-2011 |
20110033530 | COATING COMPOSITION FOR THE DIP COATING OF CAPSULE HALVES - A coating composition for the enteric coating of capsule halves made of water-soluble or water-swellable polymer material in a dipping process is provided. The composition is an aqueous dispersion or solution, containing a polymer mixture of at least one first (meth)acrylate copolymer, which is enteric, and at least one further (meth)acrylate copolymer, which is enteric or water-insoluble, and also auxiliaries which influence the viscosity of the dispersion and the elasticity of the dried polymer film. The solids content of the dispersion or solution is more than 25% by weight and the viscosity is 150 to 1500 mPa·s and a dried film produced from the dispersion or solution has an elongation at break of at least 200%. Also provided is a capsule composed of two capsule halves coated with the dispersion or solution in a dipping process does. The enteric capsule does not dissolve in 0.1 N HCl at pH 1.2 after two hours, but completely dissolves in buffer at pH 6.8 in less than 30 minutes. A method to prepare enteric coated capsule halves is also provided. | 02-10-2011 |
20110028663 | STIRRED-TANK REACTOR AND METHOD FOR CARRYING OUT A POLYMERISATION REACTION USING SAID TYPE OF STIRRED-TANK REACTOR - The invention relates to a stirred-tank reactor and to a method for carrying out a polymerisation reaction of unsaturated monomers using a stirred-tank reactor. According to the invention, said stirred-tank reactor is characterised in that the product discharge point is designed as the central base outlet that is at least partially traversed by the agitator shaft. Said polymerisation is performed continuously under positive pressure, so that the stirred-tank reactor is operated hydrodynamically. | 02-03-2011 |
20110020207 | METHOD FOR PRODUCING HYDROGEN CYANIDE IN A PARTICULATE HEAT EXCHANGER CIRCULATED AS A MOVING FLUIDIZED BED - The invention relates to a process for continuously preparing hydrogen cyanide by reacting ammonia with hydrocarbons, the reaction gas mixture being brought to reaction temperature in the fluidized bed by means of indirect heating by contact with a particulate heat transferrer, and which is characterized in that the heat transferrer is conducted cyclically in a transported fluidized bed, the heat transferrer being heated in an ascending transport stream and being contacted with the reaction gas mixture in a descending transport stream. | 01-27-2011 |
20110017439 | HEAT EXCHANGER FOR HEATING TEMPERATURE AND RESIDENCE TIME SENSITIVE PRODUCTS - The invention relates to a tube bundle heat exchanger for transferring heat for the temperature sensitive and/or polymerisible substances. Said heat exchanger comprises a housing ( | 01-27-2011 |
20110015334 | PLASTIC MIXTURES COMPRISING THERMOPLASTIC POLYURETHANE (TPU) AND IMPACT-RESISTANT POLY(METH)ACRYLATE - The present invention relates to a plastics mixture comprising at least one thermoplastic polyurethane A) and at least one impact-modified poly(meth)acrylate B), where the impact-modified poly(meth)acrylate comprises a hard phase whose glass transition temperature is at least 70° C. and a tough phase whose glass transition temperature is at most −10° C., the average particle size of the tough phase is at most 130 nm, and at least a portion of the tough phase has covalent linkage to the hard phase. | 01-20-2011 |
20110015317 | POLY(METH)ACRYLIMIDE HAVING IMPROVED OPTICAL AND COLOR PROPERTIES, PARTICULARLY UNDER THERMAL LOAD - Process for preparing moulding materials MM with improved optical and colour properties, consisting of a polymer PM which contains units of the formula I | 01-20-2011 |
20110011390 | CONTINUOUS LAMINATION OF POLYMETHYLEMETHACRYLATE (PMMA) FILM IN THE MANUFACTURE OF A FRESNEL LENS - A method for forming a laminated product includes providing a film ( | 01-20-2011 |
20110009539 | FLAMEPROOF PMMA MOLDING COMPOUND - The invention relates to a flameproof PMMA moulding material, mouldings produced therefrom and the use thereof. Small amounts of an organo-phosphorus compound are sufficient to increase the glow wire flammability index by 300° C. | 01-13-2011 |
20100331572 | METHOD FOR PRODUCING METHACRYLIC ACID - The present invention relates to a method for producing methacrylic acid by reacting methacrylamide with water, wherein said reaction is performed continuously in a tube reactor and a pressure differential exists in the flow direction of the reaction mixture inside said tube reactor. Furthermore, the present invention discloses a facility for carrying out the method according to the invention. | 12-30-2010 |
20100331450 | POLYMETHYLMETHACRYLATE WITH A NACREOUS EFFECT - The invention relates to polymethylmethacrylate with a nacreous effect. Die Erfindung betrifft Polymethylmethacrylat mit Perlglanzeffekt. | 12-30-2010 |
20100314239 | METHOD FOR PURIFYING METHACRYLIC ACID - The present invention relates to a process for purifying methacrylic acid, wherein the reaction mixture obtained by a reaction of methacrylamide with water is cooled by mixing with an aqueous medium and then passed into a phase separator. | 12-16-2010 |
20100298466 | SYNTHESIS OF IMPROVED BINDERS AND MODIFIED TACTICITY - The invention relates to a process for preparing polymers for coating applications by polymerizing esters of acrylic acid or of methacrylic acid or vinyl aromatics or other free-radically polymerizable vinyl compounds or monomer mixtures composed predominantly of such monomers by means of a continuous polymerization process. In particular, the invention relates to a solvent-free preparation process for polymers, through which the binder can be prepared for coating applications with superior processing properties, very good thermal stability, improved pigment wetting and a higher gloss. | 11-25-2010 |
20100291644 | PROCESS FOR PREPARING METHACRYLIC ACID OR METHACRYLIC ESTERS - The present invention relates to a process for the preparation of methacrylic acid or methacrylic esters, comprising the process steps of
| 11-18-2010 |
20100291202 | COATED PHARMACEUTICAL OR NUTRACEUTICAL PREPARATION WITH ENHANCED PULSED ACTIVE SUBSTANCE RELEASE - The present invention relates to a pharmaceutical or nutraceutical preparation comprising a) a core containing a pharmaceutically or nutraceutically active substance and a substance that acts in a modulatory manner with regard of the release of pharmaceutically or nutraceutically active substances; and b) a controlling layer surrounding the core comprising i) 55 to 92% by weight based on the total weight of (meth)acrylic copolymers present in the layer of one or a mixture of a plurality of (meth)acrylate copolymers composed of 80 to 98% by weight based on the weight of the (meth)acrylic copolymer of structural units derived from C | 11-18-2010 |
20100286331 | TWO OR MORE-COMPONENT SYSTEM CURED BY A REDOX INITIATOR SYSTEM WITH CONTROLLABLE WORKING LIFE, AND THE USE THEREOF - Two-component or multicomponent system which cures by means of a redox initiator system and has a controllable pot life and comprises
| 11-11-2010 |
20100286288 | QUARTERNIZATION OF THE ADDITIVE AMINO ALKYLMETHACRYLATE COPOLYMER E FOR IMPROVING PERMEABILITY AND SOLUBILITY OF PHARMACEUTICALS - The present invention relates to a strategy for improving the permeability and solubility of pharmaceuticals, based on adding a chemically modified amino alkyl methacrylate copolymer E, wherein the chemical modification is the quaternization of a fraction of the existing amino alkyl groups. | 11-11-2010 |
20100280205 | PROCESS FOR PREPARING (METH)ACRYLATES - Process for preparing (meth)acrylates of the formula (I) | 11-04-2010 |
20100280182 | METHOD FOR THE PRODUCTION OF (METH) ACRYLATE-BASED ABA TRIBLOCK COPOLYMERS - The invention relates to a method for producing meth)acrylate-based ABA triblock copolymers in which the A blocks are amine-functionalized. | 11-04-2010 |
20100273970 | PROCESS FOR PREPARATION OF HIGH PURITY METHACRYLIC ACID - The present invention relates to a process for preparation of pure methacrylic acid, at least comprising the process steps: a) gas phase oxidation of a C4 compound to obtain a methacrylic acid-comprising gas phase, b) condensation of the methacrylic acid-comprising gas phase to obtain an aqueous methacrylic acid solution, c) separation of at least a part of the methacrylic acid from the aqueous methacrylic acid solution to obtain at least one crude methacrylic acid-comprising product; d) separation of at least a part of the methacrylic acid from the at least one crude methacrylic acid-comprising product by means of a thermal separation process to obtain a pure methacrylic acid. | 10-28-2010 |
20100272960 | MOLDED BODY HAVING MATT AND STRUCTURED SURFACE PROPERTIES - Composition for the production of mouldings having a matt and structured surface character, comprising a polymer matrix and crosslinked polymer particles, the polymer matrix comprising at least one acrylic polymer and the composition containing
| 10-28-2010 |
20100261840 | EMULSION POLYMERS, AQUEOUS DISPERSIONS AND METHOD FOR PRODUCING THE SAME - The present invention relates to an emulsion polymer comprising at least one (meth)acrylate segment which comprises
| 10-14-2010 |
20100255092 | COATED PHARMACEUTICAL OR NUTRACEUTICAL PREPARATION WITH ACCELERATED CONTROLLED ACTIVE SUBSTANCE RELEASE - The present invention relates to pharmaceutical or nutraceutical preparations comprising a) a core containing a pharmaceutically or nutraceutically active substance; and b) a controlling layer surrounding the core comprising i) 55 to 92% by weight based on the total weight of (meth)acrylic copolymers present in the layer of one or a mixture of a plurality of (meth)acrylate copolymers composed of 80 to 98% by weight based on the weight of the (meth)acrylic copolymer of structural units derived from Ci to C4 alkyl esters of (meth)acrylic acid and 2 to 20% by weight based on the weight of the (meth)acrylic copolymer of structural units derived from (meth)acrylate monomers with a quaternary ammonium group in the alkyl radical; and ii) 8 to 45% by weight based on the total weight of (meth)acrylic copolymers present in the layer of one or a mixture of a plurality of (meth)acrylate copolymers composed of more than 5 to 59% by weight based on the weight of the copolymer of structural units derived from acrylic acid or methacrylic acid, and to tablets and capsules containing same. | 10-07-2010 |
20100252069 | METHOD OF RECOVERING IMPREGNATING AGENT COMPOSITIONS - The present invention relates to processes for recovering impregnating compositions, the impregnated metal part being brought into contact with a salt-containing cleaning composition which comprises at least 0.7% by weight of at least one salt. | 10-07-2010 |
20100249449 | METHOD FOR AMIDATING OF NITRILE IN THE PRESENCE OF SULFURIC ACID - The present invention relates to a process for preparing carboxamides by amidating nitriles in the presence of sulphuric acid, wherein the reaction is performed in a Taylor reactor. The process enables a simple and inexpensive preparation of these compounds. The present invention further provides processes for preparing (meth)acrylamides and alkyl(meth)acrylates, which comprise an inventive amidation reaction. | 09-30-2010 |
20100247639 | COATED PHARMACEUTICAL OR NUTRACEUTICAL PREPARATION WITH ENHANCED ACTIVE SUBSTANCE RELEASE IN THE COLON - The present invention relates to a pharmaceutical or nutraceutical preparation comprising a) a core containing a pharmaceutically or nutraceutically active substance; and b) an inner controlling layer surrounding the core comprising i) one or a mixture of a plurality of (meth)acrylate copolymers bearing a cationic group or a group that can be converted to a cationic group; and ii) one or a mixture of a plurality of polymers or copolymers bearing an anionic group or group that can be converted to an anionic group; and c) an outer controlling layer comprising one or a mixture of a plurality of polymers or copolymers bearing an anionic group or group that can be converted to an anionic group and to tablets or capsules comprising same. | 09-30-2010 |
20100217030 | METHOD AND PLANT FOR PURIFYING UNSATURATED COMPOUNDS - The present invention relates to a process for purifying unsaturated compounds, said purification being performed in a plant which comprises at least two evaporators which are connected in such a way that a portion of the unsaturated compound is circulated, the vapours condensed in the first evaporator being isolated and the vapours condensed in the second evaporator being introduced into the first evaporator, which is characterized in that the mass flow with which the condensed vapours are isolated from the mixture to be purified in the first evaporator is less than the mass flow with which the condensed vapours from the second evaporator are introduced into the first evaporator. | 08-26-2010 |
20100213636 | METHOD FOR THE PRODUCTION OF COATED MOLDINGS - The present invention relates to a process for the production of coated mouldings, by injecting a moulding composition into an injection mould and cooling the composition to obtain a moulding, and altering the injection mould in such a way as to produce an intermediate space between a surface to be coated of the moulding and the inner surface of the injection mould, and using injection moulding to charge a reactive mixture to the resultant intermediate space, where the temperature of at least a portion of the injection mould is increased for the curing of the reactive mixture. | 08-26-2010 |
20100209658 | TWO-SIDED SINGLE-NEEDLE UNDERSTITCH SEWING TECHNIQUE - Reinforcement of sandwich structures with aid of a reinforcing device. The outer layers of the sandwich structure may primarily include a fiber-plastic composite and the core material may include a rigid polymer foam. | 08-19-2010 |
20100208479 | REAR ELEMENT FOR A MOTOR VEHICLE COMPRISING A LIGHTING UNIT - The present invention relates to a rear-end element ( | 08-19-2010 |
20100204509 | METHOD FOR PRODUCING (METH)ACRYLATES - The present invention relates to a process for preparing (meth)acrylates, which comprises the transesterification of an alcohol with a low-boiling ester of (meth)acrylic acid in the presence of catalysts, with the alcohol liberated from the low-boiling ester of (meth)acrylic acid being separated off by distillation, characterized in that the molar ratio of low-boiling ester of (meth)acrylic acid to starting alcohol present in the reaction mixture is increased during the reaction by addition of low-boiling ester of (meth)acrylic acid. The process of the invention makes a particularly inexpensive preparation of (meth)acrylates having a very high purity possible. | 08-12-2010 |
20100204396 | COATING FORMULATION WITH ENHANCED METAL ADHESION - The invention relates to a coating formulation with improved metal adhesion. | 08-12-2010 |
20100197955 | METHOD FOR PRODUCING BUTANEDIOL DIMETHACRYLATES - The present invention relates to a process for preparing butanediol dimethacrylates, which comprises the transesterification of butanediol with an ester of methacrylic acid in the presence of catalysts, wherein a combination comprising at least one lithium compound and at least one calcium compound is used as catalyst, at least one of the compounds of lithium and/or of calcium is an oxide, a hydroxide, an alkoxide having from 1 to 4 carbon atoms or a carboxylate having from 1 to 4 carbon atoms and at least part of the reaction is carried out in the presence of an effective amount of water. The process of the invention makes a particularly inexpensive preparation of butanediol dimethacrylates having a very high purity possible. | 08-05-2010 |
20100197851 | AQUEOUS DISPERSIONS INCLUDING AT LEAST ONE ALKYD RESIN AND AT LEAST ONE ADDITION POLYMER HAVING AT LEAST ONE (METH)ACRYLAT-SEGMENT - The present invention relates to an aqueous dispersion comprising at least one alkyd resin and at least one addition polymer having at least one (meth)acrylate segment which comprises
| 08-05-2010 |
20100193988 | DEGASSING EXTRUDER FOR DEGASSING A POLYMER MATERIAL AND METHOD FOR DEGASSING A SYRUP CONSISTING OF POLYMERS, SOLVENTS AND/OR MONOMERS USING A DEGASSING EXTRUDER - The invention relates to a vented extruder ( | 08-05-2010 |
20100190886 | RESIN SYSTEM FOR INTUMESCENT COATING WITH ENHANCED METAL ADHESION - The invention relates to an intumescent coating with improved metal adhesion. | 07-29-2010 |
20100189983 | PMMA/PVDF FILM WITH PARTICULARLY HIGH WEATHERING STABILITY AND HIGH UV PROTECTIVE ACTION - The invention describes a transparent foil composed of plastic with improved weathering resistance and increased intrinsic stability where the foil encompasses | 07-29-2010 |
20100189954 | BUTT JOINT CONNECTIONS FOR CORE MATERIALS - The invention is based on the object of improving the mechanical properties of butt joints in sandwich structures via introduction of reinforcement elements in the direction of thickness of the sandwich structure (z direction). The invention can be used for the production of sandwich elements for applications in aerospace, and also in shipbuilding, construction of motor vehicles and of rail vehicles, construction of power-generation systems, and construction of sports equipment. | 07-29-2010 |
20100185009 | METHOD FOR SYNTHESIZING ALLYL METHACRYLATE - The present invention relates to a process for preparing allyl methacrylate, comprising the reaction of allyl alcohol with an ester of methacrylic acid, wherein the reaction is catalysed by zirconium acetylacetonate. The process according to the invention enables particularly favourable preparation of allyl methacrylate with a very high purity. | 07-22-2010 |
20100174028 | EMULSION POLYMER COMPRISING ACTIVATORS, PROCESS FOR PREPARATION THEREOF AND USE THEREOF IN TWO-COMPONENT OR MULTICOMPONENT SYSTEMS - The invention describes an | 07-08-2010 |
20100174022 | COMPOSITION WITH INCREASED STRESS CRACKING RESISTANCE - Composition containing, based in each case on its total weight,
| 07-08-2010 |
20100168282 | DISPERSION COMPRISING INORGANIC PARTICLES, WATER, AND AT LEAST ONE POLYMERIC ADDITIVE - The present invention relates to a dispersion comprising inorganic particles, water and at least one water-soluble polymer, wherein the water-soluble polymer comprises repeating units derived from monomers having at least one quaternary ammonium group, repeating units derived from monomers having at least one carboxy group and repeating units derived from ester monomers which contain polyalkoxyalkylene groups and have a number average molecular weight in the range from 3000 g/mol to 10 000 g/mol. | 07-01-2010 |
20100167615 | METHOD FOR SURFACE HARDENING SUBSTANCES BY APPLICATION OF PARTICULARLY TRANSPARENT POLYMETHACRYLATE LAYERS - The present invention describes a process for the surface finishing of materials via application of specific polymethacrylate layers. The polymethacrylate layers are composed of blends of at least two (co)polymers of polymethacrylates, and specific “reactive monomers” are present here in a polymerized mixture which forms the polymethacrylate layer. At the application temperature established, these form a chemical and, where appropriate, also a physical bond to the substrate, and therefore have adhesion-promoting action. | 07-01-2010 |
20100167045 | REACTIVE MIXTURE FOR COATING MOLDED OBJECTS BY MEANS OF REACTION INJECTION MOLDING AND COATED MOLDED OBJECT - The present invention relates to a reactive mixture for coating mouldings by means of reaction injection moulding, comprising at least 40% by weight of (meth)acrylates having at least two double bonds, the reactive mixture comprising at least one photoinitiator and at least one thermal initiator. | 07-01-2010 |
20100163177 | USE OF SWELLABLE POLYMER FOR SEALING - Use of a swellable polymer for sealing, wherein the polymer is obtainable by polymerizing a composition which comprises at least one polyalkylene glycol di(meth)acrylate having a weight-average molecular weight greater than 2500 g/mol. | 07-01-2010 |
20100148401 | COLOURED COMPOSITION WITH INCREASED STRESS CRACKING RESISTANCE - The invention relates to a composition containing, in relation to the total weight of said composition, A) between 50.0% by weight and 99.5% by weight of at least one (meth)acrylate (co)polymer and B) between 0.5% by weight and 50.0% by weight of at least one copolymer, obtained by the polymerisation of a monomer mixture consisting of i. between 70% by weight and 92% by weight of a vinyl aromatic monomer and ii. between 8% by weight and 30% by weight of acryl nitrile or methacryl nitrile or mixtures thereof iii. between 0% by weight and 22% by weight of at least one other monomer, the composition having at 50° C. a ΔE of less than 0.15, ΔE being defined according to the relationship (1): (1) in which ΔL*: the modification of the colour co-ordinates L* compared with the colour co-ordinates L* at 23° C., Δa*: the modification of the colour co-ordinates a* compared with the colour co-ordinates a* at 23° C., Δb*: the modification of the colour co-ordinates b* compared to the colour co-ordinates b* at 23° C., and the composition contains at least one (meth)acrylate (co)polymer a) with a solution viscosity in chloroform at 25° C. (ISO 1628 part 6) greater than 55 ml/g. The moulded bodies that can be obtained from the composition are characterised in particular by improved stress cracking resistance and are suitable in particular for use in coatings, paints or films. | 06-17-2010 |
20100144931 | PROCESS FOR PREPARATION OF METHYL METHARYLATE USING RECYCLED METHANOL - The invention relates to a process for production of methacrylic acid, to a process for production of methyl methacrylate comprising the process steps a) providing a feed composition comprising at least one C | 06-10-2010 |
20100130648 | PROCESS FOR PREPARATION OF METHYL METHACRYLATE BY ESTERIFICATION DURING OXIDATION - The invention relates to a process for preparation of methacrylic acid, comprising the steps: a) providing a feed composition comprising a main compound selected from isobutylene and tert-butyl alcohol and at least one co-compound selected from the group consisting of methanol, dimethyl ether and formaldehyde; b) subjecting the feed composition provided in step a) with at least a first part of said at least one co-compound to a catalytic reaction zone and obtaining an oxidation phase comprising methyl methacrylate and methacrylic acid. The invention also relates a process for preparation of methyl methacrylate, further comprising the step of: c) esterification of at least a part of the oxidation phase obtained in step b), to an apparatus for preparation of methacrylic acid, to an apparatus for preparation of methyl methacrylate, to a process carried out in the apparatus, to methacrylic acid, to methyl methacrylate, to methacrylate esters, to a process for preparation of a polymer comprising at least one methacrylic acid, methyl methacrylate and/or methacrylate ester monomer unit, to a polymer comprising at least one methacrylic acid, methyl methacrylate and/or methacrylate ester monomer, to a process for preparation of a composition, to a composition, to chemical products, and to the use of at least one of methacrylic acid, methyl methacrylate, methacrylate ester, a polymer and/or a composition in chemical products. | 05-27-2010 |
20100129446 | SOLID DOSAGE FORMS COMPRISING AN ENTERIC COATING WITH ACCELERATED DRUG RELEASE - The present invention refers to a solid dosage form comprising an inner coating located between a core containing a pharmaceutically active ingredient and an outer enteric coating; wherein said inner coating comprises a partially neutralized anionic polymeric material, and at least a carboxylic acid having 2 to 16 carbon atoms the salts thereof or mixtures of said acid and its salt; wherein said outer coating comprises an anionic polymeric material which is less or not at all neutralized than the material of the inner coating. | 05-27-2010 |