WACKER CHEMIE AG Patent applications |
Patent application number | Title | Published |
20160107894 | METHOD FOR PRODUCING GRANULAR POLYSILICON - Production of granular polysilicon is made more economical by extracting heat from the hot off-gas from the fluidized bed reactor to heat at least one of a fluidizing gas, reactant gas, silicon feed particles, or an aqueous medium. | 04-21-2016 |
20160046557 | PROCESS FOR THE PREPARATION OF VINYL ACETATE - A process for the preparation of vinyl acetate by a heterogeneously catalysed, continuous gas-phase reaction of ethylene, acetic acid and oxygen in a reactor, where process heat liberated during the reaction is removed from the reactor by means of heat exchange with water, generating intrinsic steam, the product mixture leaving the reactor and comprising ethylene, vinyl acetate, acetic acid, water, carbon dioxide and inert gases is separated by distillation using one or more azeotrope columns and/or one or more pure distillation columns, wherein at least one azeotrope column and/or pure distillation column contains packings, and intrinsic steam is used at least partially for introducing energy into the thus-equipped azeotrope columns and/or pure distillation columns. | 02-18-2016 |
20160001904 | PACKAGING OF POLYSILICON FRAGMENTS - Accurate and repeatable portioning of polycrystalline silicon chunks without excessive generation of fines is accomplished by separating silicon chunks into a multiplicity of weighed portions and combining at least four portions which together closely match a target weight into a plastic shipment bag which is then closed. | 01-07-2016 |
20150364323 | METHOD FOR DEPOSITING POLYCRYSTALLINE SILICON - The Siemens process for deposition of polycrystalline silicon in the form of rods in a sealed reactor is improved by, after introduction of deposition gas has ceased, introducing a ventilating gas into the partially sealed reactor, withdrawing a gas stream from the reactor, and monitoring the components in the gas stream withdrawn until a desired concentration of one or more components is reached, and opening the reactor to remove the rods. | 12-17-2015 |
20150361115 | METHOD FOR PRODUCING ALKYL CHLOROSILANES BY WAY OF REARRANGEMENT REACTIONS - Alkyl chlorosilanes from the manufacture of dialkyldichlorosilanes are rearranged in continuous fashion to dialkyldichlorosilane by a rearrangement reaction in a moving bed reactor employing a solid alumina catalyst containing aluminum chloride, spent catalyst being continuously removed from the reactor. | 12-17-2015 |
20150315374 | USE OF HYBRID COPOLYMERS AS PROTECTIVE COLLOIDS FOR POLYMERS - Water-redispersible polymer powders having a high proportion of base polymer are prepared by spray drying a base polymer dispersion, employing as a spraying aid, a hybrid copolymer prepared by polymerizing an ethylenically unsaturated monomer in the presence of a water soluble polymer. | 11-05-2015 |
20150315347 | PRODUCTION OF THIN SILICONE FILMS - Thin silicon films of high thickness uniformity and thicknesses of from 0.1 μm to 200 μm are prepared by applying a crosslinkable silicone composition to a moving carrier by means of a slot die, removing solvent, if present, and subsequently crosslinking the silicone layer formed on the carrier. | 11-05-2015 |
20150218334 | POROUS MEMBRANES MADE OF CROSS-LINKABLE SILICONE COMPOSITIONS - The invention relates to a method for producing thin porous membranes made of cross-linkable silicone compositions (S), according to which method an emulsion is formed from the silicone compositions (S) using a pore forming agent (P) in the presence of an emulsifier (E) and optionally solvent (L) in a first step, the emulsion is given a form and the solvent (L), if present, is allowed to evaporate in a second step, the emulsion is cross-linked in a third step, and the pore forming agent (P) is removed from the cross-linked membrane in a fourth step. The invention further relates to membranes that can be produced according to the method and to the use thereof for separating mixtures, in adhesive plasters, as a water-repellent and breathable layer in textiles or as packaging materials. | 08-06-2015 |
20150203729 | MULTICOMPONENT CROSSLINKABLE COMPOSITIONS BASED ON ORGANYLOXYSILANE-TERMINATED POLYMERS - Multicomponent crosslinkable compositions based on organyloxysilane-terminated polymers free of toxicologically objectionable catalysts and isocyanates exhibiting good tensile shear strength are useful for adhesive bonding and sealing of substrates. | 07-23-2015 |
20150152263 | ORGANOSILOXANE COMPOSITIONS CROSS-LINKING AT ROOM TEMPERATURE - Thorough in-depth cure of RTV-2 silicone compositions is accomplished by including moisture-saturated molecular sieves into at least one of the two RTV-2 components. | 06-04-2015 |
20150119509 | DEFOAMER FORMULATIONS COMPRISING ORGANOPOLYSILOXANES - A mixture of unique organopolysiloxane, filler, and additional components are effective defoamers and may be used neat, or in the form of a powder or emulsion. | 04-30-2015 |
20150112092 | METHOD FOR PRODUCING ORGANOSILICON COMPOUNDS WHICH HAVE AMINO GROUPS - The invention relates to a method for producing amino-functional polyorganosiloxanes, wherein (A) organosiloxanes which contain Si—OH groups are reacted with (B) at least stoichiometric quantities of mono-alkoxy (amino-alkyl) silanes, with respect to the Si—OH groups, (C) in the presence of at least one acid as a catalyst. | 04-23-2015 |
20150087020 | NOVEL PRONGF MUTANTS AND USES THEREOF IN THE PRODUCTION OF BETA-NGF - The present invention relates to a proNGF mutant and to uses thereof, in particular the use of a proNGF mutant for producing human beta-NGF. The present invention discloses a method of preparing a biologically active human beta-NGF from an inactive insoluble proNGF mutant. A proNGF mutant of the invention is substituted by any amino acid but not Arg or Lys at the native protease cleavage site R | 03-26-2015 |
20150007938 | COMPOSITIONS ON THE BASIS OF ORGANYLOXYSILANE-TERMINATED POLYMERS - Moisture-curing adhesives simultaneously having high tensile strength and elongation are prepared by admixing a silane-terminated polyurethane or polyether polymer having a defined and limited molecular weight, finely divided silica, and an organosilicon compound containing basic nitrogen. | 01-08-2015 |
20140369771 | CONVEYING OF FINE SOLIDS IN THE SYNTHESIS OF ALKYLCHLOROSILANES - Pneumatic conveying of fine solids in the direct synthesis of alkylchlorosilanes conveying gas containing at least 50% by volume of alkyl chloride. The conveying apparatus preferably contains a means for switching conveying gas in the pneumatic conveying of fine solids. | 12-18-2014 |
20140364565 | SILICONE COMPOSITION WHICH CAN BE CROSSLINKED INTO ELASTOMERS AND WHICH COMPRISES CROSSLINKABLE POLYGLYCOL ETHERS - Silicone elastomers exhibiting high breakdown voltage and improved static decay characteristics are prepared from a crosslinkable silicone composition containing an ethylenically unsaturated polyoxyalkylene polyether which becomes chemically bonded into the elastomer during cure. | 12-11-2014 |
20140350279 | METHOD FOR PREPARING METHYLCHLOROSILANES - The invention relates to a method for the direct synthesis of methylchlorosilanes by reacting chloromethane with a contact mass containing silicon, copper catalyst and at least 120 ppm by weight of manganese. | 11-27-2014 |
20140342399 | MICROORGANISM AND METHOD FOR OVERPRODUCTION OF GAMMA-GLUTAMYLCYSTEINE AND DERIVATIVES OF THIS DIPEPTIDE BY FERMENTATION - The invention relates to a prokaryotic microorganism strain capable of overproducing γ-glutamylcysteine and its derivatives bis-γ-glutamylcystine and γ-glutamylcystine, which can be prepared from a parent strain, wherein said strain has a reduced cellular glutathione synthetase activity compared to the parent strain, and has a cellular γ-glutamylcysteine synthetase activity which is more greatly increased than in a strain with similarly reduced cellular glutathione synthetase activity. | 11-20-2014 |
20140309370 | CROSSLINKABLE COMPOSITIONS BASED ON ORGANOSILICON COMPOUNDS - Crosslinkable compositions based on organosilicon compounds, more particularly RTV-1 sealants, contain
| 10-16-2014 |
20140287315 | Si/C COMPOSITES AS ANODE MATERIALS FOR LITHIUM ION BATTERIES - The invention relates to a process for producing an Si/C composite, which includes providing an active material containing silicon, providing lignin, bringing the active material into contact with a C precursor containing lignin and carbonizing the active material by converting lignin into inorganic carbon at a temperature of at least 400° C. in an inert gas atmosphere. The invention further provides an Si/C composite, the use thereof as anode material in lithium ion batteries, an anode material for lithium ion batteries which contains such an Si/C composite, a process for producing an anode for a lithium ion battery, in which such an anode material is used, and also a lithium ion battery which includes an anode having an anode material according to the invention. | 09-25-2014 |
20140256989 | PROCESS FOR THE PREPARATION OF HYDROXYTYROSOL - A process for preparing hydroxytyrosol, wherein a compound | 09-11-2014 |
20140251139 | METHOD FOR PROCESSING WASTEWATER AND EXHAUST GAS CONDENSATES FROM THE POLYMERIZATION OF VINYL ACETATE AND ETHYLENE IN AN AQUEOUS MEDIUM - A method for processing wastewater and exhaust gas condensates from the polymerization of vinyl acetate and ethylene and optionally other comonomers in an aqueous medium by suspension or emulsion polymerization employs relieving pressure after completion of the polymerization of the polymerization batch and discharging the polymer dispersion. During the relieving, the gaseous phase is removed by means of a compressor. Optionally, the gaseous phase occurring during stripping is removed by the compressor and cooled by one or more heat exchangers before entry into the compressor. The liquid phases occurring in the compressor and optionally in the heat exchanger are separated from the gaseous phase and the liquid phases are given to a rectification column, and separated into a vinyl acetate monomer phase and a wastewater phase, and the vinyl acetate monomer phase is resupplied to polymerization. | 09-11-2014 |
20140230698 | PROCESS FOR THE BODY-HYDROPHOBIZATION OF BUILDING MATERIALS COMPRISING SOLID ORGANOSILICON COMPOUNDS - Body-hydrophobing of mineral building compositions prepared from water curable mineral materials such as cement and plaster are obtained by admixing into the curable composition an organosilicon compound prepared by reacting a hydrocarbylhalosilane or hydrocarbylhydrocarbyloxysilane with a gylcol or polyglycol in a mol ratio of halo or hydrocarbyloxy radicals to hydroxyl radicals of 0.3 to 1.3. The organosilicon compounds are solid at 20° C. | 08-21-2014 |
20140221677 | Hydrolysis Of Organochlorosilanes In Tube Bundle Reactor - A process for hydrolyzing organochlorosilanes involves reacting organochlorosilanes with water in a tube bundle reactor to form a polyorganosiloxane-containing crude hydrolyzate and hydrogen chloride. | 08-07-2014 |
20140213808 | METHOD FOR PREPARING POLY(HYDROXYMETHYL)-FUNCTIONAL SILOXANES AND SILICA GELS - Hydroxymethyl-functional siloxanes and silica gels are prepared by reacting a siloxacycle having at least one unit of the formula [SiR | 07-31-2014 |
20140203220 | ELECTRODE FOR A LI-ION BATTERY HAVING A POLYETHER-SILOXANE COPOLYMER AS BINDER - The object of the invention is an electrode for a Li-ion battery, which contains a crosslinked polyether-siloxane copolymer (V), which can be prepared by crosslinking of siloxane macromers (S) having the average general formula (1): | 07-24-2014 |
20140194649 | PROCESS FOR THE ACETOXYLATION OF OLEFINS IN THE GAS PHASE - Yield and selectivity of olefin acetoxylation are improved through the use of successive catalyst zones of different reactivities, the successive zones contained in one or more reaction tubes arranged is parallel. | 07-10-2014 |
20140187731 | METHOD FOR PREPARING (HYDROXYMETHYL)POLYSILOXANES - Lateral hydroxymethyl-substituted organopolysiloxanol are prepared by reacting a silanol-stopped organosiloxane with a hydrolyzable methyleneoxy-group-containing organosilicon compound. | 07-03-2014 |
20140170050 | PROCESS FOR CONVERTING SILICON TETRACHLORIDE TO TRICHLOROSILANE - The invention relates to a process for converting silicon tetrachloride (STC) to trichlorosilane (TCS), by introducing reactant gas containing STC and hydrogen into a reaction zone of a reactor in which the temperature is 1000-1600° C., wherein the reaction zone is heated by a heater located outside the reaction zone and the product gas containing TCS which forms is then cooled, with the proviso that it is cooled to a temperature of 700-900° C. within 0.1-35 ms, wherein the reactant gas is heated by the product gas by means of a heat exchanger working in countercurrent, wherein reactor and heat exchanger form a single, gas-tight component, wherein the component includes one or more ceramic materials selected from the group consisting of silicon carbide, silicon nitride, graphite, SiC-coated graphite and quartz glass. | 06-19-2014 |
20140167299 | Process for Producing Dispersible Powders - A process for producing dispersible powders by spray-drying aqueous polymer dispersions and adding antiblocking agent, wherein antiblocking agents present in agglomerated form and having a particle size from 10 μm to 250 μm, or having a particle size from 5 mm to 5 cm in the case of agglomerates in the form of extrudates, are fed in whole or in part by a transport gas into the spray-drying device and are comminuted to a particle size from 0.01 μm to 5 μm, or, in the case of extrudates, to a particle size from 2 μm to 60 μm. | 06-19-2014 |
20140165503 | PACKING POLYCRYSTALLINE SILICON - The present invention relates to a method for packing polysilicon in the form of chunks by introducing the chunks into a first plastic bag, the first plastic bag being introduced into a second plastic bag after the introduction of the chunks, or the first plastic bag already having been inserted into the second plastic bag prior to the introduction of the chunks into the first plastic bag, as a result of which the chunks are present in a double bag which is sealed, wherein the air present in the two plastic bags in the double bag after the introduction of the chunks is removed before the sealing of the double bag such that the total volume of the double bag relative to the volume of the chunks is 2.4 to 3.0. | 06-19-2014 |
20140161756 | COSMETIC COMPOSITIONS - The invention relates to a novel cosmetic composition, containing, in a cosmetically acceptable medium, at least one hair conditioning agent and at least one aqueous dispersion of pre-cross-linked organopolysiloxanes composed of units of general formula (I), wherein R means a monovalent, saturated or unsaturated hydrocarbon group having 1 to 200 carbon atoms per group, which hydrocarbon group can contain one or more heteroatoms from the group N, P, S, O, and halogen, R | 06-12-2014 |
20140155644 | SEPARATING CYCLIC SILOXANES FROM SHORT-CHAIN SILOXANES HAVING TERMINAL HYDROXYL GROUPS - Cyclic siloxanes are separated from short chain hydroxyl-terminated siloxanes by contact with steam at at least 650 hPa absolute. The cyclic siloxanes and other components which are separated by use of steam can be recovered by phase separation, and preferably used in other processes. | 06-05-2014 |
20140155545 | CROSS-LINKABLE MATERIALS BASED ON ORGANYL OXYSILANE-TERMINATED POLYMERS - Moisture curable adhesives of high tensile shear strength contain an alkoxysilyl-terminated polymer and an alkoxy-functional silicone resin. | 06-05-2014 |
20140151259 | PACKING OF POLYSILICON - A bag contains polysilicon, has been welded and includes at least one weld seam and a polyethylene film having: a thickness of 150-900 μm; a stiffness at a flexural modulus | 06-05-2014 |
20140150972 | TEMPORARY ADHESION OF CHEMICALLY SIMILAR SUBSTRATES - A temporary adhesive for reversibly bonding a silicon wafer to a silicon support contains a crosslinkable organopolysiloxanes composition and a fatty acid or salt thereof or fatty acid ester as a release regulator having a density different from the crosslinkable organopolysiloxanes composition of at least 0.1 g/cm | 06-05-2014 |
20140141474 | METHOD FOR PRODUCTION OF NATURAL L-CYSTEINE BY FERMENTATION - A method for the production of natural L-cysteine by fermentation in a production fermenter in which a microorganism strain is cultured in a fermentation medium, characterized in that the fraction of the compounds L-cysteine, L-cystine and thiazolidine in the fermentation medium is controlled in a targeted manner by an iron concentration of a maximum of 8 mg/l in the fermentation medium. | 05-22-2014 |
20140135251 | SILICONE SOLVENT - A composition comprising a phosphonitrile halide and an oligomeric organopolysiloxanes having from 10 to 50 Si units is effective to remove silicone residues from substrates with minimal swelling of thin polymer substrates. | 05-15-2014 |
20140130455 | PACKAGING OF POLYCRYSTALLINE SILICON - The invention relates to a process for packaging polycrystalline silicon in the form of chunks, including the following steps: (a) providing polycrystalline silicon in a metering system; (b) filling polycrystalline silicon from the metering system, which removes fines by use of screening, into a plastic bag arranged below the metering system. The weight of the plastic bag with the polycrystalline silicon introduced is determined during the filling step and the filling step is ended after the attainment of a target weight. A fall height of the polycrystalline silicon from the metering system into the plastic bag is kept at less than 450 mm by use of at least one clamp apparatus over the entire filling step. | 05-15-2014 |
20140121303 | GYPSUM-CONTAINING CONSTRUCTION MATERIAL COMPOUNDS - The invention relates to gypsum-containing construction material compounds, containing gypsum, if necessary one or more polymers, if necessary one or more aggregates, and if necessary one or more additives, characterised in that the gypsum-containing construction material compounds contain one or more types of cement and one or more types of pozzolana. | 05-01-2014 |
20140105806 | PROCESS FOR DEPOSITION OF POLYCRYSTALLINE SILICON - The invention relates to a process for deposition of polycrystalline silicon, including introduction of a reaction gas containing a silicon-containing component and hydrogen into a reactor, as a result of which polycrystalline silicon is deposited in the form of rods, which includes passing into the reactor, after the deposition has ended, a gas which attacks silicon or silicon compounds which flows around the polycrystalline rods and an inner reactor wall in order to dissolve silicon-containing particles which are formed in the course of deposition and adhere on the inner reactor wall or on the polycrystalline silicon rods before the polycrystalline silicon rods are removed from the reactor. | 04-17-2014 |
20140105805 | PROCESS FOR HYDROGENATING SILICON TETRACHLORIDE TO TRICHLOROSILANE - The invention provides a process for hydrogenating silicon tetrachloride in a reactor, in which reactant gas containing hydrogen and silicon tetrachloride is heated to a temperature of greater than 900° C. at a pressure between 4 and 15 bar, first by means of at least one heat exchanger made from graphite and then by means of at least one heating element made from SiC-coated graphite, the temperature of the heating elements being between 1150° C. and 1250° C., wherein the reactant gas includes at least one boron compound selected from the group consisting of diborane, higher boranes, boron-halogen compounds and boron-silyl compounds, the sum of the concentrations of all boron compounds being greater than 1 ppmv based on the reactant gas stream. | 04-17-2014 |
20140105804 | REACTOR AND PROCESS FOR ENDOTHERMIC GAS PHASE REACTION IN A REACTOR - The invention provides a process for endothermic gas phase reaction in a reactor, in which reactant gases are introduced into the reactor via a gas inlet apparatus and distributed homogeneously into a heating zone by means of a gas distribution apparatus, wherein the reactant gases are heated in the heating zone to a mean temperature of 500-1500° C. by means of heating elements and then conducted into a reaction zone, the reactant gases reacting in the reaction zone to give a product gas which is conducted out of the reactor via a gas outlet apparatus. Further subject matter of the invention relates to a process for endothermic gas phase reaction in a reactor, wherein the heating of the heating elements is controlled by temperature measurements in the reaction zone, at least two temperature sensors being present in the reaction zone for this purpose, and reactor for performance of the process. | 04-17-2014 |
20140094573 | Process for producing polymers by means of emulsion or suspension polymerization in a jet loop reactor - A process for preparing a polymer in the form of an aqueous dispersion or a water-redispersible powder includes free-radically initiated heterophase polymerization of one or more ethylenically unsaturated monomers and optionally subsequent drying of the polymer dispersions obtained, wherein the polymerization is performed in a jet loop reactor. | 04-03-2014 |
20140094542 | PROCESS FOR PRODUCING PROTECTIVE COLLOID-STABILIZED POLYMERS - The invention relates to processes for producing protective colloid-stabilized polymers based on (meth)acrylate esters in the form of their aqueous dispersions and water-redispersible polymer powders by means of free-radically initiated emulsion polymerization of one or more monomers from the group consisting of the esters of acrylic acid or methacrylic acid and optionally one or more further monomers which are copolymerizable therewith, in the presence of one or more protective colloids, and optionally drying of the resulting aqueous dispersion, characterized in that the emulsion polymerization is carried out in the presence of one or more fully hydrolysed 1-alkylvinyl ester-vinyl ester copolymers as protective colloid. | 04-03-2014 |
20140080186 | METHOD FOR PRODUCING L-CYSTINE BY FERMENTATION UNDER CONTROLLED OXYGEN SATURATION - The invention relates to a method for producing L-cystine by fermenting a microorganism strain in a fermentation medium, in which method L-cystine is precipitated in an amount of at least 70% relative to the total cysteine, characterized in that the O | 03-20-2014 |
20140069301 | ORGANOSILICONATE POWDERS, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF FOR HYDROPHOBIZING MINERAL BUILDING MATERIALS - Solid alkali metal salts of organosilanols and/or their hydrolysis/condensation products are prepared by hydrolysis of organosilanes in water and in the presence of a basic alkali metal salt. The products contain predominately methyl and ethyl organic groups, and C | 03-13-2014 |
20140037959 | POLYCRYSTALLINE SILICON CHUNKS AND METHOD FOR PRODUCING THEM - The present invention relates to polycrystalline silicon chunks which are cubic and have a metal content of less than 200 pptw and a dopant content of less than 50 ppta. Methods for producing polycrystalline silicon chunks, include the steps of providing a polycrystalline silicon rod, comminuting the polycrystalline silicon rod into cubic chunks, and cleaning the polycrystalline silicon chunks, wherein comminution takes place using a spiked-roll crusher having at least one spiked roll, the spiked roll including W | 02-06-2014 |
20140031586 | METHOD FOR PURIFYING L-CYSTEINE - The invention relates to a method for producing a purified solution containing L-cysteine from a fermentation broth containing L-cysteine. In said method, the fermentation broth containing L-cysteine, at a pH value from pH 6 to 9, is brought in contact with a basic anion exchanger, wherein the L-cysteine bonds to the anion exchanger. The anion exchanger is then rinsed with a first washing solution, and the bonded L-cysteine is removed from the anion exchanger by means of an acid and transferred into an eluate. Said eluate, having a pH≦4, is brought in contact with an acidic cation exchanger, wherein the L-cysteine bonds to the cation exchanger. The cation exchanger is rinsed with a second washing solution, and the bonded L-cysteine is removed from the cation exchanger by means of a strong acid. | 01-30-2014 |
20140020600 | AQUEOUS DISPERSIONS OF ORGANOSILICON COMPOUNDS - Stable aqueous organosilicon dispersions particularly useful for the hydrophobing of construction materials are prepared by first preparing a homogenous mixture of organopolysiloxanes and hydrophobic silica filler, and dispersing this mixture together with an alkylalkoxysilane bearing at least one C | 01-23-2014 |
20140005433 | CONTINUOUS PROCESS FOR PREPARING SiOC-CONTAINING COMPOUNDS | 01-02-2014 |
20140004030 | POLYCRYSTALLINE SILICON PORTION AND METHOD FOR BREAKING A SILICON BODY | 01-02-2014 |
20140004029 | METHOD FOR REDUCING THE ALUMINUM CONTENT OF NEOPENTASILANE | 01-02-2014 |
20130337266 | MODIFIED COMPOSITE PARTICLES - The invention relates to methods for producing modified composite particles by A) mixing one or more finely divided inorganic solids and one or more organic polymers in a solvent or a mixture of several solvents, wherein finely divided inorganic solids are fixed to organic polymers and composite particles are thus formed. The organic polymers are based on a) one or more ethylenically unsaturated monomers having one or more additional functional groups selected from the group comprising carboxylic acid groups or derivatives thereof, silane groups, sulfonic acid groups, sulfate groups, phosphate groups, phosphonate groups, isocyanate groups, amine groups, quaternized amine groups, hydrazine groups, epoxy groups, ether groups, hydroxy groups, or CO groups, and b) one or more ethylenically unsaturated monomers which are different from monomers a), characterized in that subsequently B) one or more ethylenically unsaturated monomers are polymerized in the presence of the composite particles from step A). | 12-19-2013 |
20130330794 | METHOD FOR PRODUCING 2,3-BUTANEDIOL BY FERMENTATION - The invention relates to a production strain for producing 2,3-butanediol. Said production strain has an acetolactate synthase activity 2—68 times higher than the original strain. The invention also relates to a method for producing 2,3-butanediol by fermentation by means of said production strain. | 12-12-2013 |
20130323428 | SELF-ADHESIVE SILICONE COMPOSITIONS WHICH CAN BE CROSSLINKED TO FORM ELASTOMERS - Self-adhesive crosslinkable silicone compositions may be transparent and prepared without conventional adhesion promoters, and contain (1) an organopolysiloxane having a minimum of two aliphatically unsaturated carbon-carbon bond-containing groups, (2) a pendant Si—H functional organopolysiloxane having at least 3 Si—H groups and a minimum of 0.7 weight percent of Si-bonded hydrogen, and (3) a linear organopolysiloxane bearing terminal Si—H groups, wherein the mol ratio of silicon-bonded hydrogen in (2) to that in [(2) and (3)] is from 0.05 to 1. | 12-05-2013 |
20130316419 | METHOD FOR PRODUCING 2,3-BUTANEDIOL BY FERMENTATION - The invention relates to a microorganism strain which has an acetolactate decarboxylase activity 2-12.8 times higher than the non-improved original strain. The invention also relates to a method for producing 2,3-butanediol (2,3-BDL) by fermentation by means of said strain. | 11-28-2013 |
20130316418 | METHOD FOR PRODUCING 2,3-BUTANEDIOL BY FERMENTATION - The invention relates to a production strain for producing 2,3-butanediol. Said production strain can be produced from an original strain selected from the genes | 11-28-2013 |
20130310488 | DUST REDUCER AGENT FOR DRY MIXERS OF BUILDING MATERIAL FORMULATIONS - The invention provides methods for producing building material formulations in the form of dry mixers, characterized in that (a) one or more dust reducer agents are applied to one or more inorganic supports, to form supported dust reducer agents, the inorganic supports having a porosity of ≧65%, and the dust reducer agents being selected from the group consisting of fatty acids, fatty acid derivatives, natural oils, hydrocarbons and polysiloxanes composed of units of the general formula R | 11-21-2013 |
20130309524 | POLYCRYSTALLINE SILICON - Polycrystalline silicon in the form of chunks packed in plastic bags containing a mass of at least 5 kg, including chunks of size from 20 to 200 mm, wherein any fines fraction in the plastic bag is less than 900 ppmw, preferably less than 300 ppmw, more preferably less than 10 ppmw. The polycrystalline silicon, after comminution of a silicon rod obtained by CVD (Siemens process), is sorted and classified, optionally dedusted and then metered and packed. Metering and packing units include elements for removing fines or small particles during metering and during packing. The packing unit includes an energy absorber or a reservoir vessel which enables sliding or slipping of the silicon chunks into the plastic bag. Gas flow generated within the plastic bag after the bag has been filled transports the dust or small particles out of the bag, and these are sucked out with a suction device. | 11-21-2013 |
20130309352 | GUM BASE, CHEWING GUM PREPARATION PRODUCED THEREFROM AND METHODS FOR PRODUCTION THEREOF - The invention relates to a gum base which, in comparison with known gum bases, has an improved aroma, taste and improved oxidation stability, has only low stickiness, and in addition is simple to process. It is a homogeneous composition containing 15-45% by weight of polyvinyl acetate, 10-30% by weight of vinyl laurate-vinyl acetate copolymers, 15-45% by weight of fillers, 5-30% by weight of waxes or fats, 1-10% by weight of plasticizers and 1-10% by weight of emulsifiers. | 11-21-2013 |
20130309283 | SILICONE EMULSIONS AND METHOD FOR PRODUCING SAME - Aqueous emulsions of high viscosity organopolysiloxanes can be prepared having a very low content of cyclic siloxanes by condensing low molecular weight alkoxy-functional organopolysiloxanes in aqueous emulsion with an alkylphosphate emulsifier and at least one selected polyoxyethylene non-ionic surfactant. | 11-21-2013 |
20130309218 | PROCESS FOR PRODUCING AQUEOUS SOLUTION CONTAINING FAT-SOLUBLE SUBSTANCE - The purpose of the present invention is to provide a process for producing an aqueous solution containing a fat-soluble substance. A combination of a super dissolution aid, cyclodextrin and a fat-soluble substance or a combination of the super dissolution aid and a cyclodextrin complex of the fat-soluble substance is used for dissolving the fat-soluble substance, whereby it becomes possible to provide an aqueous solution containing the fat-soluble substance at a high concentration and an aqueous solution having improved transdermal absorbability of the fat-soluble substance contained therein. | 11-21-2013 |
20130296220 | COMPOSITIONS COMPRISING QUAT COMPOUNDS AND ORGANOPOLYSILOXANES - Compositions useful as fabric softeners contain a long chain β-ketocarbonylquat containing at least one quaternary ammonium group and an organopolysiloxane polymer or siloxane copolymer. | 11-07-2013 |
20130295408 | POLYCRYSTALLINE SILICON ROD AND PROCESS FOR PRODUCTION THEREOF - The invention provides a polycrystalline silicon rod having a total diameter of at least 150 mm, including a core A having a porosity of 0 to less than 0.01 around a thin rod, and at least two subsequent regions B and C which differ in porosity by a factor of 1.7 to 23, the outer region C being less porous than region B. | 11-07-2013 |
20130295378 | PANEL-SHAPED CONSTRUCTION ELEMENTS - A construction element obtained by fastening a reinforcement to an insulating panel, using an adhesive containing one or more mineral binders and/or one or more polymeric binders, and optionally one or more fillers, optionally one or more adjuvants and optionally one or more additives, the reinforcement being embedded partially but not completely in the adhesive. | 11-07-2013 |
20130287668 | PROCESS AND APPARATUS FOR CONVERSION OF SILICON TETRACHLORIDE TO TRICHLOROSILANE - A process for hydrogenating chlorosilanes in a reactor, wherein at least two reactant gas streams are introduced separately from one another into a reaction zone, wherein the first reactant gas stream comprising silicon tetrachloride is conducted via a first heat exchanger unit in which it is heated and is then conducted through a heating unit which heats it to a first temperature before the first reactant gas stream reaches the reaction zone, and wherein the second reactant gas stream comprising hydrogen is heated by a second heat exchanger unit to a second temperature, wherein the first temperature is greater than the second temperature, and then introduced into the reaction zone, such that the mixing temperature of the two reactant gas streams in the reaction zone is between 850° C. and 1300° C., and said reactant gas streams react to give product gases comprising trichlorosilane and hydrogen chloride, wherein the product gases obtained in the reaction are conducted through said at least two heat exchanger units and preheat the reactant gas streams of the reaction by the countercurrent principle, wherein the flow passes first through the first heat exchanger unit and then through the second heat exchanger unit. A reactor for hydrogenating chlorosilanes, comprising two gas inlet devices through which reactant gases can be introduced separately from one another into the reactor, and at least one gas outlet device through which a product gas stream can be conducted, at least two heat exchanger units which are connected to one another and which are suitable for heating reactant gases separately from one another by means of the product gases conducted through the heat exchanger units, and a heating zone which is arranged between a first heat exchanger unit and a reaction zone and in which there is at least one heating element. | 10-31-2013 |
20130280533 | GRANULAR POLYCRYSTALLINE SILICON AND PRODUCTION THEREOF - Granular polycrystalline silicon is disclosed, which has a convexity of 0.850-1.000 and a chlorine content of 10-40 ppmw. Also disclosed is a process for producing granular polycrystalline silicon in a fluidized bed reactor, which includes: (a) fluidization of silicon seed particles by gas flow in a fluidized bed heated by a heating apparatus, (b) addition of a silicon- and halogen-containing reaction gas resulting in pyrolytic deposition of elemental silicon on heated seed particle surfaces, (c) forming the granular polycrystalline silicon, (d) removing from the reactor particles and offgas containing hydrogen halide, and (e) metered addition of fresh seed particles. The hydrogen halide concentration in the offgas is determined as the controlled variable. The rate of metered addition of fresh seed particles and heating output of the heating apparatus are controlled as manipulated variables to keep the hydrogen halide concentration in the offgas within an above-defined range during operation. | 10-24-2013 |
20130280201 | FULLY ACYLATED AMINO-FUNCTIONAL ORGANOPOLYSILOXANES - Fully acylated hydroxyl-terminated organopolysiloxanes bearing pendant aminoalkyl groups are easily prepared by reacting a hydroxyl-terminated, aminoalkyl organopolysiloxane with a carboxylic anhydride in stoichiometric amount relative to amino groups, in the presence of at least one emulsifier. | 10-24-2013 |
20130269295 | PACKING OF POLYCRYSTALLINE SILICON - A method for packing polycrystalline silicon in the form of fragments or round rods, wherein at least one film in each case is inserted into a cuboidal cardboard box matched to the dimensions of the polycrystalline silicon to be packed, the polycrystalline silicon is introduced into the at least one film, the at least one film of thickness 10 to 1000 μm subsequently being welded and enclosing the polycrystalline silicon, and this at least one film being surrounded by a further film having a reinforcing structure or by a shaping element. | 10-17-2013 |
20130267654 | SILICONE ASPARTATE COPOLYMERS - Aspartate-containing silicone copolymers are prepared in high yield and with low reaction time by preparing a monoester of hydroxyl functional polyether by reaction of the latter with maleic anhydride, and then reacting with a silicone containing at least one primary or secondary amino group. | 10-10-2013 |
20130253129 | AQUEOUS CROSSLINKABLE DISPERSIONS BASED ON ORGANOSILICON COMPOUNDS - Aqueous emulsions curable to elastomeric solids are preparable without the use of an organic emulsifier, and may be prepared to the exclusion of organic solvents. | 09-26-2013 |
20130253085 | SILICONE-CONTAINING POLYURETHANE FOAM - Low density silicone-containing polyurethane foams with excellent surface characteristics are prepared by reacting a foamable composition containing a siloxane of the formula | 09-26-2013 |
20130237413 | Method For The Production Of Stable Binder-Free High-Purity Moldings Composed Of Metal Oxides and Their Use - Stable high strength porous metal oxide articles suitable, for example, for use as catalyst supports, are prepared by predisposing fine metal oxide particles in water followed by fine dispersion under high shear, and subjecting the dispersion to a change in pH to coagulate the metal oxide particles and form a moldable viscoelastic composition. The moldings are substantially free of impurity atoms. | 09-12-2013 |
20130236642 | ROD-TYPE POLYSILICON HAVING IMPROVED BREAKING PROPERTIES - Rod-type, polycrystalline silicon having a rod diameter of >100 mm are obtained by deposition of silicon-containing gas according to the Siemens method, wherein the Si rods are brought into contact with hydrogen at the end of the deposition process during cooling in the reactor, and the cooled Si rods obtained have in perpendicular cross section cracks and/or radial stresses having a defined size. | 09-12-2013 |
20130216466 | CHUNK POLYCRYSTALLINE SILICON AND PROCESS FOR CLEANING POLYCRYSTALLINE SILICON CHUNKS - The invention provides chunk polycrystalline silicon having a concentration of carbon at the surface of 0.5-35 ppbw. A process for cleaning polycrystalline silicon chunks having carbon contaminations at the surface, includes a thermal treatment of the polycrystalline silicon chunks in a reactor at a temperature of 350 to 600° C., the polycrystalline silicon chunks being present in an inert gas atmosphere during the thermal treatment, and the polycrystalline silicon chunks after the thermal treatment having a concentration of carbon at the surface of 0.5-35 ppbw. | 08-22-2013 |
20130204027 | PRODUCTION OF SILAOXACYCLES - Siloxacycles are efficiently prepared from compounds of the formula | 08-08-2013 |
20130200554 | HIGHLY TRANSPARENT SILICONE MIXTURES THAT CAN BE CROSS-LINKED BY LIGHT - Silicone fibers suitable for use as optical fibers are prepared by crosslinking an extruded mixture of a silicone resin and an organopolysiloxane, both containing aliphatically unsaturated groups, an organopolysiloxane bearing Si—H groups, and a light activatable trimethyl(methylcyclopentadienyl) platinum catalyst. | 08-08-2013 |
20130197273 | METHOD FOR THE CONTINUOUS PRODUCTION OF 2-BUTANONE IN HOT PRESSURIZED WATER HAVING AN ADDED ELECTROLYTE - The invention relates to a method for continuously producing 2-butanone from 2,3-butanediol in hot pressurized water having an added electrolyte, characterized in that a compound selected from among the group comprising Ce(SO4) | 08-01-2013 |
20130189176 | LOW-DOPANT POLYCRYSTALLINE SILICON CHUNK - The invention provides a polycrystalline silicon chunk having a concentration of 1-50 ppta of boron and 1-50 ppta of phosphorus at the surface. | 07-25-2013 |
20130186564 | GRINDABLE SILICONE ELASTOMER COMPOSITION AND THE USE THEREOF - Temporary adhesive compositions used to adhesively bond a substrate to be abraded or polished onto a substrate are themselves abradable or polishable, and contain a non-reinforcing filler or particulate silicone resin in a curable organopolysiloxane composition, and have defined physical characteristics in addition to being thermally stable. | 07-25-2013 |
20130186325 | PROCESS FOR DETERMINING SURFACE CONTAMINATION OF POLYCRYSTALLINE SILICON - The invention provides a process for determining surface contamination of polycrystalline silicon, including the steps of: a) providing two polycrystalline silicon rods by deposition in a Siemens reactor; b) determining contaminants in the first of the two rods immediately after the deposition; c) conducting the second rod through one or more systems in which polycrystalline silicon rods are processed further to give rod pieces or polysilicon fragments, optionally cleaned, stored or packed; d) then determining contaminants in the second rod; wherein the difference in the contaminants determined in the first and second rods gives surface contamination of polycrystalline silicon resulting from systems and the system environment. | 07-25-2013 |
20130183448 | COATING AGENTS FOR PRODUCING PERMANENTLY FLEXIBLE COATINGS - The invention relates to coating agents based on one or more mineral binders, one or more polymers, one or more fillers, and optionally one or more additives. The invention is characterized in that the coating agents contain 0.05 to 5 wt. %, with respect to the dry weight of the coating agents, of one or more flexibilizers selected from the group comprising hydroxy compounds with 1 to 25 carbon atoms, carboxylic acid compounds with 1 to 25 carbon atoms or the salts thereof, hydroxy carboxylic acid compounds with 1 to 25 carbon atoms or the salts thereof, phosphonic acids or the salts thereof, and phosphoric acids or the salts thereof, and at least 55 wt % polymers, with respect to the dry weight of the polymers and the mineral binders. | 07-18-2013 |
20130178581 | CURABLE ORGANOPOLYSILOXANE COMPOSITION - Crosslinkable compositions containing an alkoxy-functional polyorganosiloxane and a titanium chelate complex exhibit good moisture-curing properties and produce coatings resistant to temperature ramp extremes. | 07-11-2013 |
20130177517 | AQUEOUS MIXTURES COMPRISING AMINOALKYL-CONTAINING POLYORGANOSILOXANES AND SILICONE RESINS - Aqueous emulsions of organopolysiloxanes functionalized with a limited amount of aminoalkyl-functional end groups and silicone resins are storage stable, yet capable of adequate crosslinking upon application to substances to be hydrophobicized. | 07-11-2013 |
20130177493 | POLYCRYSTALLINE SILICON - The invention provides polycrystalline silicon having concentrations of dopants of 1-10 ppta of boron, 1-20 ppta of phosphorus, 1-10 ppta of arsenic, 0.01-1 ppta of aluminum, and having a charge carrier lifetime of at least 2000 and at most 4500 μs. | 07-11-2013 |
20130171222 | SILICONE EMULSION - Stable aqueous silicone emulsion compositions contain a silicone or silicone mixture having a viscosity of 1×10 | 07-04-2013 |
20130165566 | MIXTURES COMPRISING AMINOALKYL-CONTAINING POLYORGANOSILOXANES AND SILICONE RESINS - Storage stable polyorganosiloxane-silicone resin mixtures contain:
| 06-27-2013 |
20130158193 | EMULSIONS OF ORGANOPOLYSILOXANES HAVING ACIDIC AND BASIC GROUPS AND THE PRODUCTION THEREOF - Organopolysiloxanes containing both acidic and basic groups are prepared by reacting oganopolysiloxanes with primary or secondary amino groups with a stoichiometric deficiency of isocyanates containing sulfonyl-group-containing electron withdrawings groups in the presence of acidic or basic moderators. | 06-20-2013 |
20130157025 | Coating Systems - The invention provides coating systems comprising a) a base layer, b) middle layer and c) top layer, whereby each of the layers a), b) and c) is based on mineral binder, filler, polymers from one or more ethylenically unsaturated monomers and optional further additives, and whereby the middle layer contains additionally light weight aggregates. | 06-20-2013 |
20130150547 | PRODUCTION OF HIGH-MOLECULAR-WEIGHT SILICONE RESINS - Silicone resins with a weight average molecular weight of at least 5000 g/mol and polydispersity of ≦65 are prepared by hydrolyzing and condensing:
| 06-13-2013 |
20130145966 | WATER-SOLUBLE ORGANOSILICONATE POWDER - Organosilanolate powders having a low cation to silicon ratio provide superior hydrophobing ability. The powders may be prepared on an industrial scale by hydrolysis of a silane with a basic salt solution, adding an inert organic solvent, and removing gaseous or alcoholic hydrolysis products by evaporation or distillation, precipitating the organosilanolate as a fine powder. | 06-13-2013 |
20130144002 | Low-profile additives on the basis of renewable resources - The invention relates to the use of polymers on the basis of renewable resources as LPA, characterized in that the polymers on the basis of renewable resources can be obtained by the radically initiated polymerization of one or more ethylenically unsaturated monomers in the presence of one or more renewable resources selected from the group consisting of carbohydrates and natural rubbers. | 06-06-2013 |
20130131261 | Process for Preparing Vinyl Acetate-Ethylene Copolymers by Means of Emulsion Polymerization - The invention provides processes for preparing vinyl acetate-ethylene copolymers by means of free-radical initiated emulsion polymerization of vinyl acetate, ethylene and optionally one or more further comonomers in the presence of at least one protective colloid and optionally at least one emulsifier, characterized in that the vinyl acetate-ethylene copolymers contain 18 to 45% by weight of ethylene units, based on the total weight of the vinyl acetate-ethylene copolymers, and at least 70% by weight of ethylene units, based on the total weight of the ethylene units and of the further comonomer units of the vinyl acetate-ethylene copolymers, and the free-radical initiated emulsion polymerization is performed in the presence of A) 0.5 to 20% by weight, based on the total weight of the monomers used overall, of one or more solvents, or B) 0.1 to 20% by weight, based on the total weight of monomers used overall, of one or more solvents, and 0.5 to 4% by weight, based on the total weight of monomers used overall, of one or more anionic sulphosuccinic esters of the general formula R | 05-23-2013 |
20130130041 | SELF-ADHESIVE SILICONE ELASTOMERS - Composite materials contain a silicone addition crosslinkable silicone elastomer composition comprising an organopolysiloxane having aliphatic unsaturation, an Si—H functional cyclic organopolysiloxane, a hydrosilylation catalyst, together with specific adhesion promoters, applied to a substrate material. | 05-23-2013 |
20130123535 | Beta-Ketocarbonylquat Compounds and Process for the Preparation thereof - β-ketocarbonylquats contain at least one quaternary ammonium salt group, and may be prepared by the reaction of an alkyl ketene dimer with a tertiary amine group-containing compound also containing a protic group, followed by quaternization. | 05-16-2013 |
20130123376 | PROCESS FOR PRODUCING SILOXANE COPOLYMERS WITH URETHANE-SULPHONAMIDO LINKING GROUPS - Readily emulsifyable silicone copolymers containing urethanesulfonamido linking groups are prepared by reacting a hydroxyl-functional organic polymer with a halo- or pseudohalo-sulfonyl isocyanate, and then reacting the halo- or pseudohalo-sulfonyl product with an organopolysiloxane bearing aminoalkyl groups, preferably in stoichiometric excess. | 05-16-2013 |
20130102738 | SILANE-CROSSLINKING COMPOSITIONS - The invention provides curable adhesives of high tensile sheer strength, which contain an a-silane-terminated polyurethane prepolymer containing low molecular weight polyether or polyester groups in the polymer backbone, and a silane-terminated polyether polymer containing polyether groups of higher molecular weight. | 04-25-2013 |
20130102702 | Process for Continuous Emulsion Polymerization - A process for aqueous, free-radically initiated, continuous emulsion polymerization of A) at least one vinyl ester and optionally at least one (meth)acrylic ester, B) ethylene, and C) 0 to 10% by weight of one or more ethylenically unsaturated, functionalized comonomers, in the presence of 3.0 to 12.5% by weight of one or more emulsifiers, where at least 50% by weight are nonionic emulsifiers, and 0 to 10% by weight of one or more protective colloids, in a stirred tank cascade with at least two pressure reactors connected in series and with at least one low-pressure reactor connected downstream. | 04-25-2013 |
20130089488 | APPARATUS AND PROCESS FOR DEPOSITION OF POLYCRYSTALLINE SILICON - The invention relates to an apparatus for deposition of polycrystalline silicon, including a reactor chamber with a reactor wall, at least 20 filament rods and gas inlet orifices for reaction gas in the reactor chamber, wherein each filament rod—except for the filament rods close to the reactor wall—has, at a distance of 150 to 450 mm, three further adjacent filament rods and one to three adjacent gas inlet orifices. The invention further relates to a process for depositing polycrystalline silicon on filament rods in such an apparatus, the gas inlet orifices are used to introduce a silicon-containing gas into the reactor chamber and the filament rods are heated to a temperature at which silicon is deposited thereon. | 04-11-2013 |
20130072587 | SILICONE-CONTAINING POLYISOCYANURATE FOAM - Polyisocyanurate foams of closed cell structure and low density are obtained by reaction of an amino-functional hyperbranched organopolysiloxane polyol, polyisocyanate, trimerization catalyst, and blowing agent. | 03-21-2013 |
20130071640 | INSULATION HAVING A LAYERED STRUCTURE - Insulation powders having high thermal insulation value contain at least one silica with a BET surface area of from 130-1200 m | 03-21-2013 |
20130071515 | NON-TACK GUM BASE, CHEWING GUM PREPARATION PRODUCED THEREFROM AND METHODS FOR PRODUCTION THEREOF - The invention relates to a non-tack gum base, a chewing gum preparation produced therefrom and also methods for production thereof. It is a homogeneous composition comprising polyvinyl acetate in an amount of 25-90% by weight, vinyl laurate-vinyl acetate copolymer in an amount of 5-70% by weight, and a softener in an amount of 1%-15% by weight, in each case based on the total weight of the composition. | 03-21-2013 |
20130060057 | METHOD FOR PRODUCING ESTER-FUNCTIONAL SILANES - Silanes containing an ester group are produced in high yield and purity by reacting a salt of a carboxylic acid with a silane containing a carboxylate substitutable leaving group following by distilling the product mixture to obtain a distillate containing the ester group containing silane product, wherein a solvent having a boiling point higher than the product is contained in the product mixture during at least a terminal portion of the distillation. | 03-07-2013 |
20130042582 | METHOD FOR PACKAGING POLYCRYSTALLINE SILICON - A method is disclosed for packaging polycrystalline silicon, in which a plastic bag is filled with polycrystalline silicon by means of a filling device, which has a freely suspended energy absorber consisting of a nonmetallic low-contamination material, wherein the plastic bag is pulled over the energy absorber and filled with polycrystalline silicon, and the plastic bag is lowered downward during the filling, so that the silicon slides into the plastic bag. Also disclosed is a method for packaging polycrystalline silicon, in which a plastic bag is filled with polycrystalline silicon by means of a filling device, wherein a storage container has an opening through which it is filled with silicon, the plastic bag being pulled over the storage container after filling the storage container with silicon and the storage container subsequently being rotated so that the silicon slides out of the storage container into the plastic bag. | 02-21-2013 |
20130040871 | ANTIFOAM COMPOSITIONS - Superior defoamer compositions contain a low viscosity linear organopolysiloxane, a higher viscosity, optionally branched organopolysiloxane, a polyethersiloxane with a low cloud point, and both colloidal silica and fumed silica. | 02-14-2013 |
20130029142 | SURFACE TREATMENT OF CEMENTITIOUS SUBSTRATES - The invention provides for the use of dry building materials comprising one or more polymers in the form of water-redispersible powders, and optionally mineral binders, optionally fillers and optionally additives, for the surface treatment of cementitious substrates that are as yet not fully set. | 01-31-2013 |
20130029037 | COATING COMPOSITION FOR SEALING SURFACES - Weather resistant and water repellent surfacing compositions especially useful in roofing applications contain an alkoxysilane-terminated polymer and a reactive silane plasticizer containing a C | 01-31-2013 |
20130025625 | PROCESS FOR CLEANING POLYCRYSTALLINE SILICON CHUNKS - Disclosed is a process for cleaning polycrystalline silicon chunks in an acidic cleaning bath, wherein: (a) the cleaning includes several cleaning cycles, (b) a particular amount of acid is consumed in each cycle, (c) a computer-controlled dosage system integrator adds up those amounts of acid consumed in each cycle to give a current total consumption of acid in the bath, and (d) on attainment of a total consumption of acid in the bath corresponding to an optimal dosage of the dosage system, the dosage system supplies this optimal dosage of unconsumed acid withdrawn from a reservoir vessel to the bath. Another process for cleaning polycrystalline silicon chunks in an acidic cleaning bath includes an acid circuit in which acid is circulated, wherein the ratio of amount of acid circulated in liters to the mass of polysilicon chunks present in the bath in kg is greater than 10. | 01-31-2013 |
20130022770 | DIACYLOXYSILANE-BASED, MOISTURE-CROSSLINKABLE ETHENE POLYMERS - Polyethylene homo or copolymers which further contain grafted or copolymerized vinyldiacyloxysilanes are easily processable without premature crosslinking, are easily formed into shaped articles by conventional processing methods, and yet rapidly crosslink to form crosslinked polymers. | 01-24-2013 |
20130018200 | SILAOXACYCLESAANM Daiss; Juergen OliverAACI MunichAACO DEAAGP Daiss; Juergen Oliver Munich DEAANM Schmid; StefanAACI MunichAACO DEAAGP Schmid; Stefan Munich DE - Siloxacycles are synthesized in high yield and purity by reaction of acyloxymethyl (alkoxy) silanes in the presence of a catalyst which is a metal from groups 3 to 15 of the periodic table, or a compound thereof. | 01-17-2013 |
20130011581 | PROTECTIVE DEVICE FOR ELECTRODE HOLDERS IN CVD REACTORS - A device for protecting electrode holders in CVD reactors includes an electrode suitable for accommodating a filament rod on an electrode holder which includes an electrically conductive material and is installed in a recess of a bottom plate, wherein an intermediate space between an electrode holder and a bottom plate is sealed by means of a sealing material, and the sealing material is protected by a protective body which is made up of one or more parts and is arranged in a ring-like manner around the electrodes, and the height of the protective body increases at least in sections in the direction of the electrode holder. | 01-10-2013 |
20130011558 | PROCESS FOR PRODUCING POLYSILICON - A process for producing polysilicon, includes a) depositing polycrystalline silicon on filaments using reaction gas containing silicon-containing component (SCC) containing trichlorosilane, and hydrogen, wherein molar saturation of SCC based on hydrogen is at least 25%; b) feeding offgas from the deposition into a cooling apparatus, i) wherein condensed offgas components containing SiCl | 01-10-2013 |
20130005935 | Preparing Organopolysiloxanes - Organopolysiloxane resins are prepared by reacting tetrachlorosilane with a mixture of 1.0 to 7.0 mol of monohydric alcohol per mol of tetrachlorosilane and 0 to 2 mol of water per mol of tetrachlorosilane to form a partial alkoxylate, followed by the mixing the partial alkoxylate with a water-insoluble organic solvent having a density below 0.95 kg/l and a monofunctional silane of the formula R | 01-03-2013 |
20130005847 | POLYURETHANE FOAM CONTAINING SILICONE - Silicone-containing polyurethane foams of low density, good pore structure, and high surface quality are prepared by reacting a branched, preferably hyperbranched silicone polyol with a polyisocyanate and a silicone resin in the presence of a reactive or non-reactive blowing agent. | 01-03-2013 |
20130004399 | PROCESS FOR DISPOSAL OF HEXACHLORODISILANE-CONTAINING VAPORS - Hexachlorodisilane and residues formed therefrom are disposed of without generating pyrophoric compositions by reaction with urea and alcohol in nonpolar solvent. | 01-03-2013 |
20120330045 | PROCESS FOR CONVERSION OF DISILANES - Highly alkyl-substituted disilanes generally considered as uncleavable, obtained as part of the residue of alkylchlorosilane synthesis, are converted into cleavable disilanes having fewer alkyl groups by reaction with hydrogen halide in the presence of an alumina catalyst. The resulting disilanes can be cleaved into commercially valuable monosilanes by conventional processes. | 12-27-2012 |
20120329701 | AMINO SILICONE BASED ANTIFOAM AGENT AND ITS PROCESS OF MANUFACTURE - Modified aminoalkyl- and polyoxyalkylene-functional organopolysiloxanes exhibit delayed antifoaming activity in washing operations, minimizing foaming of rinse water. When applied to a pulverulent carrier, they may also be used in powder detergent formulations. | 12-27-2012 |
20120328269 | DEVICE AND METHOD FOR THE THERMAL TREATMENT OF CORROSIVE GASES - A device for thermal treatment of corrosive gases includes a chamber for heating gases in which there are at least four heating elements or four groups of heating elements including an electrically conductive material, wherein each heating element or group is connected to a separately regulatable and/or controllable subsystem of an electrical energy network and can thereby be heated by direct current flow, wherein each heating element or group can be controlled or regulated with respect to at least one either identical or different value of a parameter selected from the group consisting of temperature, heating power, current, voltage and resistance, or with respect to another heating element process variable, which can be influenced by the device, and wherein at least four regulatable and/or controllable subsystems are DC-isolated from ground potential. The invention also relates to a corresponding method for the thermal treatment of corrosive gases. | 12-27-2012 |
20120327543 | ELECTRODE AND METHOD FOR SUPPLYING CURRENT TO A REACTOR - Disclosed is a method for supplying current to a reactor, wherein electrode(s) of an electrical energy network (EEN), which is DC-isolated from ground potential, is/are fed through a reactor wall and connected to an electrically conductive element (ECE) so that an operating voltage is applied to the ECE and electrical current flows through it. A seal of electrically insulating material is provided between the wall and the electrode. The EEN is monitored for insulation faults. A fall below a particular insulation resistance triggers shutdown of the electrical energy supply. The switching threshold is determined by taking into account at least one of the following parameters: seal geometry, seal material, supply voltage and maximum possible electrical energy input into the seal immediately before shutdown, triggered by the maximum theoretically possible leakage current through the seal. A device and an electrode having respective seals are also disclosed. | 12-27-2012 |
20120322940 | CURABLE ORGANOPOLYSILOXANE COMPOSITIONS - Addition-crosslinkable silicone compositions having high adhesion, rapid curing, and reduced odor and extractables contain a silylated citric acid. | 12-20-2012 |
20120316356 | METHOD FOR HYDROSILYLATION USING A PLATINUM CATALYST - The selectivity of hydrosilylation of unsaturated organic compounds by Si—H functional organosilicon compounds is improved by use of a silyl polyphosphate ester in conjunction with a platinum hydrosilylation catalyst. | 12-13-2012 |
20120316287 | Semi-Continuous Method for Emulsion Polymerisation - A method for producing aqueous polymer dispersions by means of radically initiated emulsion polymerisation, in an aqueous medium, of vinyl ester and ethylene, in series-connected polymerisation reactors, wherein in a first discontinuous polymerisation phase at least some of the reactants are introduced into the first polymerisation reactor and the remainder is added in a metered fashion. The reactor is filled up to more than 90% by volume, and at least 90 wt % of the monomers are reacted; in a second continuous polymerisation phase, the reactants are continuously supplied to the first polymerisation reactor and product is continuously withdrawn, and the product is continuously transferred into a second polymerisation reactor, and in the second polymerisation reactor the polymerisation is continued until at least 98 wt % of the monomers used have reacted. | 12-13-2012 |
20120312165 | METHOD FOR DEAERATING LIQUIDS - Efficient deaeration of aqueous suspensions such as those obtained during textile treatment or pulp and paper production is achieved by use of a combination of a polyoxypropylene polyether polymer or copolymer and branched polyether-polysiloxane copolymers. | 12-13-2012 |
20120310007 | Method for Producing Vinyl Acetate - A method for producing vinyl acetate in a heterogeneously catalyzed, continuous gas phase process by reacting ethylene with acetic acid and oxygen in a reactor and separating the product gas stream substantially comprising ethylene, vinyl acetate, acetic acid, water, carbon dioxide and inert gases. | 12-06-2012 |
20120308465 | METHOD FOR PRODUCING TRICHLOROSILANE BY THERMAL HYDRATION OF TETRACHLOROSILANE - Efficient production of trichorosilane from tetrachlorosilane and hydrogen is effected by reaction at high temperatures over short residence times followed by rapidly cooling the product mixture in a heat exchanger, recovered heat being employed to heat the reactant gases, which are then fed to the reactor in a heated state. | 12-06-2012 |
20120296106 | PROCESS FOR PREPARING ORGANOSILANES - The invention relates to a process for preparing diorganyldihalosilanes of the general formula (1) R | 11-22-2012 |
20120296062 | METHOD FOR PRODUCING POROUS SILICON MOLDED BODIES - Thin porous moldings of silicone copolymers, suitable for use as membranes in separation processes, are prepared by forming a solution or suspension of silicone copolymer in two solvents L1 and L2, casting the suspension or solution, and removing solvent L1 to form a silicone copolymer rich phase A, effecting structure formation, and then removing solvent L2 and residues of solvent L2 to form a thin porous molding. | 11-22-2012 |
20120288908 | METHOD FOR PRODUCING CARBOXYLIC ACIDS HAVING 1-3 CARBON ATOMS FROM RENEWABLE RESOURCES - The invention relates to a method for producing carboxylic acids having 1-3 carbon atoms, characterized in that 2,3-butanediol and/or acetoin are reacted to form carboxylic acids having 1-3 carbon atoms. | 11-15-2012 |
20120286189 | Hydrophobic Thermal Insulation - Thermal insulation materials which have no binders in the form of liquids, which adhesively bond particles, and which are treated with low-volatility organosilanes or organosiloxanes whose boiling points are greater than 130° C. under atmospheric pressure, the k thermal conductivity being between 0.014 and 0.040 W/mK and the density being in the range from 50 to 300 kg/m | 11-15-2012 |
20120259108 | COMPOSITION COMPRISING AN ALPHA-CYCLODEXTRIN-CHLORINE DIOXIDE COMPLEX AND AN INERT SUBSTANCE, AND ALSO METHOD FOR PRODUCTION THEREOF - The invention relates to a safely handleable and transportable composition including an alpha-cyclodextrin-chlorine dioxide complex and an inert substance, and also a method for production thereof. | 10-11-2012 |
20120251728 | Oil-Repellent Coating Material Composition - An oil-repellent coating material composition containing: | 10-04-2012 |
20120244370 | PRODUCTION OF MINERAL-BONDED COATINGS HAVING DUCTILE PROPERTIES (As Amended) - The invention relates to methods for producing mineral bonded coatings, characterized in that that one or more priming agents based on one or more polymers of ethylene unsaturated monomers and optionally one or more components from the group comprising fillers, mineral bonding agents, and fibers is applied to a substrate, and one or more coating agents comprising one or more mineral bonding agents and one or more fibers is/are applied to the priming agent layer thus obtained. | 09-27-2012 |
20120238671 | SILICONE RESIN EMULSION AND USE THEREOF IN HYDROPHOBING PLASTER - Silicone resin emulsions especially suitable for hydrophobing gypsum compositions together with H-siloxanes are prepared by hydrolysis and subsequent distillation to an alcohol content of less than 0.1 weight percent. Use of the emulsion with H-siloxanes provides plaster products such as plasterboard of increased hydrophobicity. | 09-20-2012 |
20120232217 | COMPOSITIONS COMPRISING SILOXANE COPOLYMERS - Polyurea/urethane silicone elastomers with improved properties are obtained by addition of solid polyurea/urethane silicone low molecular weight oligomers. | 09-13-2012 |
20120232214 | Composite Particles Having Organic and Inorganic Domains - Composite particles obtained by converting a) one or more inorganic oxide particles having an average diameter of <1000 nm, b) one or more organic polymers, and c) one or more coupling reagents, the oxide particles a) and organic polymers b) being linked by units of coupling reagents c), wherein one or more polymers of α) one or more ethylene unsaturated monomers selected from vinyl esters of carbolic acids having 1 to 15 C atoms, methacrylic acid esters or acrylic acid esters of carbolic acids having unbranched or branched alcohols having 1 to 15 C atoms, and olefins, vinyl aromatics, and vinyl halogenides, and β) one or more ethylene unsaturated carbolic acids having 3 to 11 C atoms, and optionally γ) one or more monomers comprising at least two ethylene unsaturated groups, and optionally δ) one or more further ethylene unsaturated monomers are used as the organic polymers b). | 09-13-2012 |
20120231113 | Solid Homogeneous Mixture Of Polyvinylacetate and Vinylacetate-Vinyl Laurate Copolymer Prepared By Sequential Solution Polymerization - The invention provides a chewing gum base containing a homogeneous composition in solid form comprising
| 09-13-2012 |
20120220793 | Method for Producing (Hydroxymethyl)Polysiloxanes - A method for producing (hydroxymethyl)polysiloxanes of the general formula I | 08-30-2012 |
20120220020 | MULTICHAMBER PHOTOBIOREACTOR - A multichamber photobioreactor comprises at least one cultivation chamber and at least one temperature control chamber and is characterized in that at least one outer surface of the cultivation chamber comes in contact with the temperature-controlling medium in such a way that at least 50 percent of at least one outer surface of the cultivation chamber come in contact with the temperature-controlling medium, and in that the components coming in contact with the cultivation medium are made of or coated with silicone materials. | 08-30-2012 |
20120218552 | DEVICE AND METHOD FOR DETERMINING A GAS CONCENTRATION IN A FLOWING GAS MIXTURE - The invention relates to a method for determining a gas concentration in a flowing gas mixture, wherein the flowing gas mixture includes solids having a defined size distribution, wherein by way of an optical spectrometer the concentration of a gas is measured in the flowing gas mixture, which includes a measurement beam of the optical spectrometer being conducted during the measurement through a measurement channel having walls made of a gas-permeable material. The invention also relates to a device for carrying out such a method. | 08-30-2012 |
20120208952 | Method for Deaerating Liquids - The invention describes a novel method for deaerating liquids by adding 0.0001 to 5.0% by weight, preferably 0.0002-1.0% by weight, especially preferred 0.001-0.2% by weight of branched polyether-polysiloxane copolymers to said liquids. Only those branched polyether-polysiloxane copolymers are used in which the polyether radicals are SiC-bonded via hydrocarbon radicals to linear siloxane chains and said siloxane chains are connected to each other via SiC-bonded organic radicals, preferably divalent to decavalent, preferably divalent to tetravalent, hydrocarbon radicals, which may contain one or more heteroatoms selected from the group consisting of oxygen and nitrogen atoms. | 08-16-2012 |
20120203019 | Method For Producing Organo-Oligo Silsesquioxanes - Silsesquisiloxanes are produced in high yield and purity in a minimal number of process steps by reacting quaternary ammonium silicates with disiloxanes in a precipitant liquid which causes the silsesquisiloxane product to be precipitated in high purity. | 08-09-2012 |
20120202960 | METHOD FOR PRODUCING ORGANOPOLYSILOXANES - Organopolysiloxanes with consistent product properties are prepared while minimizing alcohol usage in the hydrolysis of chlorosilanes by use of a vertical continuous loop reactor having a heating unit on an ascending side of the loop which is regulated such that the temperature of the reactant mixture is within ±5° C. of a set value. | 08-09-2012 |
20120202919 | CROSS-LINKABLE COMPOSITIONS - Crosslinkable compositions contain a calcium carbonate-rich filler coated with a carboxylic acid of the formula | 08-09-2012 |
20120202290 | TUBULAR PHOTOBIOREACTOR - The invention relates to a tubular photobioreactor that has a core structure in the shape of a truncated cone and one or more transparent or translucent tubes which are helically wound around the outer surface and/or inner surface of the core structure. Said tubular photobioreactor is characterized in that the transparent or translucent tube has at least two chambers, through at least one of which the cultivation medium flows and through at least one of which a heat transfer medium flows. | 08-09-2012 |
20120198793 | METHOD AND DEVICE FOR DOSING AND PACKAGING POLYSILICON CHUNKS AND DOSING AND PACKAGING UNIT - Disclosed is a method for dosing and packaging polysilicon chunks, wherein a product flow of polysilicon chunks is transported via a feed channel, separated by at least one screen into coarse and fine chunks, weighed and dosed to a target weight by a dosing balance, discharged via a discharge channel and transported to a packaging unit where a first plastic bag is filled with the polysilicon chunks and sealed, the plastic bag containing polysilicon chunks being packaged with a further plastic bag which is formed by a shaper and subsequently welded, wherein the at least one screen and the dosing balance at least partially include a hard metal on their surfaces and the shaper for forming the plastic bag includes a wear-resistant coating. Also disclosed are a dosing unit, a packaging unit and a device for dosing and packaging polysilicon chunks, which contains a dosing unit and a packaging unit. | 08-09-2012 |
20120196986 | STABILIZED HUMIDITY-CURABLE POLYMERS HAVING 2-PHASE CURING KINETICS - The invention relates to stabilized mixtures (M) comprising a polymer (P) that can be humidity-cured into a cured polymer (PV), wherein the polymer (P) comprises hydrolysable silane groups at least one location not corresponding to the two ends of the main polymer chain, and silane (W) having at least one hydrolysable group as a water catcher, reacting faster with water at 25° C. and 1 bar than the humidity-curing polymer (P), and to a method for curing polymers (P) in mixtures (M) by means of water and particular silanes (W). | 08-02-2012 |
20120193214 | PROCESS FOR PURIFYING CHLOROSILANES BY DISTILLATION - The invention relates to a process for purifying chlorosilanes by distillation, which includes providing a boron-containing mixture of chlorosilanes containing TCS, DCS and STC and purifying the mixture of chlorosilanes by distillation in a plurality of distillation columns, wherein low-boiling boron compounds are branched off from the distillation columns by means of overhead streams containing boron-enriched DCS and high-boiling boron compounds are branched off by means of a boron-enriched bottom stream containing high boilers. | 08-02-2012 |
20120171147 | SILICONE EMULSIONS, AND METHODS FOR THE PRODUCTION THEREOF - Emulsions of high viscosity silicones are prepared by emulsifying a lower viscosity condensable silicone with a partial phosphate ester surfactant, and ripening the emulsion to obtain a higher viscosity silicone dispersed phase without generation of objectional amounts of octaorganocyclotetrasiloxanes. The emulsions are well suited for body care products. | 07-05-2012 |
20120165493 | ISOCYANATE-FREE SILANE-CROSSLINKING COMPOUNDS - The invention relates to compounds (K) comprising A) 100 parts by weight of a pre-polymer (P) comprising units (E) in the backbone thereof that are selected from polyether and polyester units, wherein the pre-polymer (P) comprises at least one end group of the general formula (1) -L | 06-28-2012 |
20120151969 | METHOD AND DEVICE FOR PRODUCING THIN SILICON RODS - A method for producing thin silicon rods includes: a) providing a rod of silicon; b) sequentially cutting with a sawing device slabs from the rod, wherein the rod is respectively rotated axially through 90° or 180° between two successive cuts so that two of four successive cuts respectively take place pairwise on radially opposite sides of the rod or wherein slab cutting takes place simultaneously together at radially opposite sides of the rod; and c) sawing the cut slabs into thin rods having a rectangular cross section. A device for producing thin rods from a silicon rod by sawing, contains a first unit with cutting tools and a cutting tool cooling liquid, a second unit having nozzles for introducing additional cooling liquid into cutting kerfs of the workpiece, and a third unit having a band saw, a wire saw or cutting tools containing one or more shafts. | 06-21-2012 |
20120149558 | Catalyst for hydrodechlorination of chlorosilanes to hydrogen silanes and method for implementing hydrogen silanes using said catalyst - The invention relates to a method for producing hydrogen silanes of general formula R | 06-14-2012 |
20120142844 | Aqueous hybrid binder for jointing mortars - A process for preparing jointing mortar includes using copolymers of ethylenically unsaturated monomers and of ethylenically functionalized nanoparticles in the form of their aqueous polymer dispersions or water-redispersible polymer powders. The copolymers are obtained by means of free-radically initiated polymerization in aqueous medium, and optionally subsequent drying of the resultant polymer dispersion, of
| 06-07-2012 |
20120136108 | ONE-COMPONENT ORGANOPOLYSILOXANE COMPOSITIONS WITH HIGH RELATIVE PERMITTIVITY - Organopolysiloxane composition (O) curable to vulcanizates having relative permittivity ε | 05-31-2012 |
20120136082 | BINDING AGENTS BASED ON HIGHLY BRANCHED POLYOLEFINS COMPRISING SILANE GROUPS - The invention relates to highly branched polymers (P) comprising at least one silane group, wherein at least one silicon atom carries a hydrolysable group of the general formula (I): R | 05-31-2012 |
20120135514 | Bioreactor Comprising A Silicone Coating - The invention relates to a bioreactor for cultivating phototrophic organisms in an aqueous culture medium. The reactor parts and/or fittings that come into contact with the culture medium are entirely or partially coated with a silicone layer, and the surface of the silicone layer has a contact angle to the water of at least 100°. | 05-31-2012 |
20120130103 | PROCESS FOR PREPARING CARBAMATOORGANOSILANES - The invention provides a process for preparing carbamatoorganosilanes (S) of the general formula (7) | 05-24-2012 |
20120128567 | PROCESS FOR WORKUP OF LIQUID RESIDUES OF THE DIRECT SYNTHESIS OF ORGANOCHLOROSILANES - The invention provides a process for thermal cleavage of the high-boiling residues of the direct Müller-Rochow synthesis to give silanes with hydrogen chloride in a fluidized bed of silicon dioxide-containing, aluminum-free particles. | 05-24-2012 |
20120123143 | METHOD FOR PRODUCING ALKOXY-SUBSTITUTED 1,2-BISSILYLETHANES - The invention relates to a method for producing alkoxy-substituted 1,2-bissilylethanes of the general formula 1 | 05-17-2012 |
20120123051 | ADHESIVE SILICONE RUBBER COMPOSITION - An object of the invention is to provide an adhesive silicone rubber composition which has superior adhesion to various thermoset resins, especially to polyurethane. The composition comprises of (A) a polyorganosiloxane having at least two alkenyl groups, (B) a polyorganohydrogensiloxane which has at least two hydrogen atoms bonded to silicon atoms, (C) an organosilicon compound having aromatic hydrocarbon group and alkoxy group bonded to silicon atom, (D) an organometal compound which can be catalyst for condensation reaction of (C) component, (E) a polyorganosiloxane resin, and (F) catalytic amount of hydrosilylation reaction catalyst. | 05-17-2012 |
20120123048 | CROSS-LINKABLE ORGANOSILICON-BASED COMPOSITIONS - Moisture curable one-component organosilicon compositions exhibiting excellent resilience and adhesiveness contain an α-alkoxysilyl-terminated base polymer, aminoalkylalkoxysilane adhesion promoter, and polyolefin bearing succinic anhydride groups. | 05-17-2012 |
20120111263 | METHOD FOR THE DETERMINATION OF IMPURITIES IN SILICON - The invention relates to a method for the determination of impurities in silicon, in which a monocrystalline rod is produced by means of zone refining from a silicon to be tested; this monocrystalline rod is introduced, in at least one dilution step, into a casing made of mono- or polycrystalline silicon having defined carbon and dopant concentrations and a diluted monocrystalline rod of silicon is produced from the rod and casing by means of zone refining; wherein the determination of impurities in the silicon to be tested is carried out with the aid of a diluted monocrystalline rod by means of photoluminescence or FTIR or both. | 05-10-2012 |
20120107626 | Adhesive or sealing compounds containing alkoxysilane-terminated polymers - Two-component adhesive or sealing compounds (K), comprising a first component (K1), containing silane-terminated prepolymers (A), which have end groups of the general formula (II) —O—CO—NH—(CH | 05-03-2012 |
20120107217 | METHOD FOR PRODUCING OLIGOHALOGEN SILANES - The invention relates to a method for producing oligohalogen silanes, selected from oligohalogen silanes of the general formulas (1) and (2): Si | 05-03-2012 |
20120101291 | PROCESS FOR PREPARING POLYSILANES - The invention provides a process for preparing polysilanes of the general formula (1) Si | 04-26-2012 |
20120101237 | SELF-ADHESIVE HARDENER COMPOSITION - Hardener composition for condensation-crosslinking RTV-2 silicone compositions contain
| 04-26-2012 |
20120100302 | METHOD FOR PRODUCING POLYCRYSTALLINE SILICON RODS - The invention relates to a method for producing polycrystalline silicon rods by deposition of silicon on at least one thin rod in a reactor, wherein, before the silicon deposition, hydrogen halide at a temperature of 400-1000° C. is introduced into the reactor containing at least one thin rod and is irradiated by means of UV light, as a result of which halogen and hydrogen radicals arise and the volatile halides that form are removed from the reactor. | 04-26-2012 |
20120100057 | PROCESS FOR THE PREPARATION OF DODECAHALONEOPENTASILANES - The invention relates to a method for producing neopentasilanes of the general formula (1) Si(SiR | 04-26-2012 |
20120095248 | Process For Preparing Organoalkoxyhydrosilanes - Process for preparing organoalkoxyhydrosilanes with a boron content less than 100 ppb and of the formula | 04-19-2012 |
20120088874 | Method For Producing Fiber-Reinforced Building-Material Coatings - The invention relates to methods for producing fiber-reinforced building-material coatings in that building-material coating agents containing mineral binders, optionally fillers, and optionally additives, are sprayed by means of a spray nozzle to form a building-material coating agent stream and one or more fibers are introduced into the building-material coating agent stream, and the fiber-modified building-material coating agent stream thus obtained then strikes a substrate, characterized in that the building-material coating agents additionally contain one or more polymers based on ethylenically unsaturated monomers. | 04-12-2012 |
20120083620 | METHOD FOR HYDROSILYLATING - Minimization of byproducts in hydrosilylation reactions is achieved by use of a catalyst system which contains a platinum (O) complex catalyst and an oranic amine oxide and/or hydrate thereof. | 04-05-2012 |
20120077906 | Flexible Watertight Roof Coatings - The invention provides for the use of coating compositions based on one or more mineral binders, one or more polymers, one or more fillers, and, if desired, one or more additives for producing roof coatings, the coating compositions comprising at least 50% by weight of polymers, based on the dry weight of the polymers and of the mineral binders. | 03-29-2012 |
20120071650 | METHOD FOR PRODUCING AMINOORGANOSILANES - The invention relates to a method (a) for producing aminoorganyltriorganylsilanes of the general formula (1) R′ | 03-22-2012 |
20120071588 | Fiber-Containing Pasty Construction Materials - The invention relates to fiber-containing pasty construction materials, containing a) one or more fillers, b) optionally additives, characterized in that they contain c) fibers, d) one or more polymers based on one or more ethylenically unsaturated monomers, having a glass transition temperature Tg of ≧−15° C., e) ≦5% by weight hydraulically setting binders and f) water, wherein the information in % by weight relates to the dry weight of the fiber-containing pasty construction materials. | 03-22-2012 |
20120060562 | METHOD FOR PRODUCING THIN SILICON RODS - The invention relates to a method for producing thin silicon rods ( | 03-15-2012 |
20120058040 | PROCESS FOR PRODUCING POLYCRYSTALLINE SILICON - The invention provides a process for producing polycrystalline silicon, by introducing reaction gases containing a silicon-containing component and hydrogen into reactors to deposit silicon, wherein a purified condensate from a first deposition process in a first reactor is supplied to a second reactor, and is used in a second deposition process in that second reactor. | 03-08-2012 |
20120046487 | SEPARATION OF ORGANOSILICON COMPOUNDS FROM WASTEWATER - The invention relates to a method for separating organosilicon compounds from organosilicon wastewater. In the first step, the wastewater is heated to at least 10° C. In the second step, the wastewater is stored for at least 30 minutes at at least 10° C. In the third step, the wastewater is conducted through a phase separation element, in which droplets that are formed and contain organosilicon compounds are separated. | 02-23-2012 |
20120035314 | Use of Protective Colloid-Stabilized Polymerizates as Low-Profile Additive (LPA) - The invention relates to the use of protective colloid-stabilized polymerizates as low profile additive (LPA), characterized in that the protective colloids carry one or more functional group selected from the group comprising carboxyl, sulfate, sulfonate, phosphate, phosphonate, hydroxyl and nitrogen-functional groups, having the stipulation that the mass fraction of the hydroxyl groups equals ≦10 wt % based on the total mass of a protective colloid. | 02-09-2012 |
20120031843 | Membranes based on polyvinyl alcohol - The invention relates to the use of silane-modified polyvinyl alcohols for producing membranes, characterized in that the silane-modified polyvinyl alcohols can be obtained by a) radically initiated copolymerization of one or more vinyl esters from unbranched or branched carboxylic acids having 1 to 15 C-atoms and one or more ethylenically unsaturated silane compounds selected from the group comprising compounds of the general formulae CR | 02-09-2012 |
20120031496 | METHOD FOR METERING COMPOUNDS BASED ON ORGANOPOLYSILOXANES - Viscous compositions are metered discontinuously into storage vessels such as tubes, tubs, or cartridges, from a stable volume container free of dead space wherein the calculated volume, expressed as the mathematical product of adiabatic compressibility coefficients of the composition, the outlet pressure, and volume of the container exceed the metered volume. | 02-09-2012 |
20120015201 | Process for Preparing Vinyl Acetate-Ethylene Copolymers by Means of Emulsion Polymerization - The invention provides a process for preparing vinyl acetate-ethylene copolymers by means of free-radically initiated emulsion polymerization of vinyl acetate and 18% to 34% by weight of ethylene, based on the total weight of the vinyl acetate and ethylene monomers, and, optionally, further comonomers, characterized in that polymerization takes place in the presence of at least one protective colloid and of 0.5% to 4% by weight, based on the total amount of monomers, of at least one nonionic, ethoxylated emulsifier with a branched or linear alkyl radical or in the form of ethylene oxide-propylene oxide copolymers, and in the absence of chain transfer agent, and, before the initiation of the polymerization, 10% to 70% by weight of the vinyl acetate monomer and 40% to 100% by weight of the ethylene monomer are included in the initial charge, up to 100% by weight of the protective colloid fraction is included in the initial charge, at least 25% by weight of the emulsifier fraction is included in the initial charge, and the remaining fractions of monomers, protective colloid and emulsifier are metered in during the polymerization, the procedure being such that the criterion of process COP meets the condition | 01-19-2012 |
20120010422 | METHOD FOR PRODUCING HYDROCARBON OXYSILICON COMPOUNDS - The invention relates to a method for producing silicon compounds (A) having hydrocarbon oxy-groups that have at least one unit of the general formula (1) H | 01-12-2012 |
20120004437 | METHOD FOR PRODUCING (METH)ACRYLOSILANES - The invention relates to a method for producing silanes (S) of the general formula (1); (R | 01-05-2012 |
20120004436 | PROCESS FOR THE SYNTHESIS OF 1,3-BIS(AMINOALKYL)DISILOXANES - The invention provides a process for the synthesis of bis(aminoalkyl)disiloxanes of the general formula I by reaction of the carbamatosilanes of the general formula Ma or of the carbamatodisiloxanes of the general formula Mb or of mixtures thereof in the presence of water, where R | 01-05-2012 |
20120004435 | Preparation of 1,3,5-triethyl-2,4,6-trihydrido-2,4,6-triethylamino-1,3,5-triaza-2,4,6-tr- isilacyclohexane - A process for preparing 1,3,5-triethyl-2,4,6-trihydrido-2,4,6-triethylamino-1,3,5-triaza-2,4,6-trisilacyclohexane, wherein trichlorosilane is reacted with ethylamine in a solvent. | 01-05-2012 |
20120004376 | Storage-Stable Hardener Composition In A 2K System - Hardener composition for condensation-crosslinking RTV-2 silicone compositions contain: | 01-05-2012 |
20120004374 | METHOD FOR THE CONTINUOUS PRODUCTION OF SILANE TERMINATED PRE-POLYMERS - The invention relates to the continuous production of prepolymers (A) having end groups of the general formula (1): (R | 01-05-2012 |
20120004364 | Crosslinkable Materials Based On Organosilicon Compounds - The invention relates to materials which are based on organosilicon compounds, are storable with exclusion of water and are crosslinkable to elastomers on ingress of water at room temperature, which comprise organic acids and basic nitrogen or basic phosphorus, to processes for preparation thereof and to moldings produced therefrom. | 01-05-2012 |
20110319547 | Use of Vinyl Ester Copolymers as Low-Profile Additives (LPAS) - The invention relates to the use of protective-colloid-stabilized vinyl ester/ethylene copolymers in the form of polymer powder as low-profile-additives (LPAs). | 12-29-2011 |
20110301374 | METHOD FOR PRODUCING ORGANOSILICON COMPOUNDS HAVING AMINO GROUPS - Amino group-containing organosilicon compounds containing no or only a small fraction of Si-bonded hydroxyl groups are prepared by preparing an organosilicon compound containing amino groups and Si-bonded hydroxyl groups by equilibration in the presence of an equilibration catalyst, and reacting the resultant product with a cyclic silazane. The products are particularly useful as a monomer or macromere for the preparation of high molecular weight organic polymers containing organosilicon blocks. | 12-08-2011 |
20110301373 | CYCLIC AZA-SILA COMPOUNDS - The invention relates to cyclic aza-sila compounds that are made of 4 to 10 units of the general formulas (I) and (II) bonded by means of Si—Si or Si—N single bonds, wherein Y is selected from among —NR | 12-08-2011 |
20110295032 | METHOD FOR PRODUCING AND STABILIZING OLIGOAMINOSILANES - The invention relates to a method for producing oligoaminosilanes of the general formula (I) Si | 12-01-2011 |
20110293777 | Solid Homogeneous Mixture Of Polyvinylacetate and Vinylacetate-Vinyl Laurate Copolymer Prepared By Sequential Solution Polymerization - The invention provides a chewing gum base containing a homogeneous composition in solid form comprising | 12-01-2011 |
20110288245 | ALKOXY-CROSSLINKING RUBBER MIXTURES COMPRISING NIOBIUM OR TANTALUM CONDENSATION CATALYSTS - The invention provides alkoxy-crosslinking rubber mixtures (M) which comprise a compound of the general formula (1) M(OR | 11-24-2011 |
20110282088 | PROCESS FOR PREPARING BIS- AND TRIS(SILYLORGANO)AMINES - The invention provides a process for preparing silylorganoamines of the general formula (1) R′ | 11-17-2011 |
20110269892 | PREPARING SILICONE EMULSIONS - The invention provides a process for preparing emulsions of organopolysiloxanes (O), which includes polymerizing: (1) 100 parts by weight of hydroxyl-terminated organopolysiloxanes and (2) at least 0.01 part by weight of trialkylsilyl-terminated organopolysiloxanes having a viscosity of at least 55 mm | 11-03-2011 |
20110268949 | Binder for Mineral Fiber Mats - The object of the invention are mineral fiber mats based on mineral fibers and one or more binders, characterized in that at least one binder is a vinyl ester-ethylene copolymer. | 11-03-2011 |
20110268919 | Particles With Structured Surface - Particles with a structural surface which are useful to produce abrasion resistant self-cleaning surfaces contain particulate solid particles having a superstructured overlayer of fine particles. The particles may be prepared by polymerizing a polymerizable siloxane, silane, or mixture thereof in a Pickering emulsion. | 11-03-2011 |
20110263751 | Highly Hydrophobic Coatings - The invention relates to a suspension comprising: fine-particulate particles in an amount of 0.01-50 wt %, wherein the particles have a fractal mass dimension D | 10-27-2011 |
20110257324 | Polymer Blends Comprising Alkoxysilane-Terminated Polymers - The invention relates to a blend (M), comprising A) 100 parts of an alkoxysilylmethyl-terminated polymer (A) with at least one end group of the general formula (1) -L-(CH | 10-20-2011 |