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WACKER CHEMIE AG

WACKER CHEMIE AG Patent applications
Patent application numberTitlePublished
20120035314Use 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
20120031843Membranes 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 CR02-09-2012
20120031496METHOD 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
20120015201Process 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 condition01-19-2012
20120010422METHOD 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) H01-12-2012
20120004437METHOD FOR PRODUCING (METH)ACRYLOSILANES - The invention relates to a method for producing silanes (S) of the general formula (1); (R01-05-2012
20120004436PROCESS 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 R01-05-2012
20120004435Preparation 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
20120004376Storage-Stable Hardener Composition In A 2K System - Hardener composition for condensation-crosslinking RTV-2 silicone compositions contain:01-05-2012
20120004374METHOD 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): (R01-05-2012
20120004364Crosslinkable 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
20110319547Use 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
20110301374METHOD 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
20110301373CYCLIC 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 —NR12-08-2011
20110295032METHOD FOR PRODUCING AND STABILIZING OLIGOAMINOSILANES - The invention relates to a method for producing oligoaminosilanes of the general formula (I) Si12-01-2011
20110293777Solid 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 comprising12-01-2011
20110288245ALKOXY-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(OR11-24-2011
20110282088PROCESS FOR PREPARING BIS- AND TRIS(SILYLORGANO)AMINES - The invention provides a process for preparing silylorganoamines of the general formula (1) R′11-17-2011
20110269892PREPARING 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 mm11-03-2011
20110268949Binder 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
20110268919Particles 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
20110263751Highly 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 D10-27-2011
20110257324Polymer 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-(CH10-20-2011
20110257304Acid-resistant, hydraulically setting masses - The invention relates to acid-resistant, hydraulically setting masses based on a) slag sand, b) one or more pozzolanas, c) one or more fillers, d) one or more polymers based on ethylenically unsaturated monomers, and water.10-20-2011
20110257303Hydraulically Setting Sealing Composition - The invention provides hydraulically setting sealing composition based on a) a hydraulically setting compound out of the group comprising high-alumina cement, ordinary portland cement, blast furnace slag, b) protective-colloide stabilized polymer of one or more ethylenically unsaturated monomers in form of an aqueous polymer dispersion or a water-redispersible polymer powder, and c) one or more fillers.10-20-2011
20110257297Graft Copolymers and Use Thereof as Low-Profile Additives - The invention provides graft copolymers obtainable by A) free-radically initiated polymerization of one or more vinyl esters a), one or more further ethylenically unsaturated monomers b) comprising at least one further functional group, B) subsequent polymer-analogous reaction of the copolymers from stage A) by joining the monomer units b) thereof to one or more further monomers b) such that at least one free-radically polymerizable group is introduced into the copolymers from stage A), characterized in that C) one or more ethylenically unsaturated monomers are polymerized onto the products from stage B) by free-radically initiated polymerization.10-20-2011
20110245377CROSS-LINKABLE MASSES BASED ON ORGANOSILICON COMPOUNDS - Curable organosilicon compositions with good adhesion to substrates and good workability contain a condensable base organopolysiloxane, a carbamato-alkyl-functional alkoxysilane, and a heterocycle substituted at a heteroatom by an alkoxysilylmethyl group.10-06-2011
20110237761Siloxane Mixtures Containing Epoxide Resins and Method for the Preparation Thereof and Use Thereof - Composition comprising (A) 50-99.5 wt %, based on the total weight, of A, B and C of a reaction resin or reaction resin mixture that is processed into thermosetting materials, said resin or resin mixture being liquid at temperatures in the range of 15 to 100° C. and having an average molecular weight of 200 to 500,000 and with a sufficient number of suitable reactive groups for a curing process and (B) 0.5-50 wt %, relative to the total weight of A, B and C of one or more dispersed polyorganosiloxanes that are contained in the reaction resin or reaction resin mixture homogeneously in finely distributed form as polyorganosiloxane droplets with a diameter of 0.001 to 4 μm, wherein the organopolysiloxane particle is a polymer of the general formula (R09-29-2011
20110230598Pervious Concrete Composition - The invention relates to pervious concrete compositions containing hydraulic binder, filler and polymer, characterized in that the polymer present is a vinyl acetate-ethylene-copolymer having a glass transition temperature Tg of ≦20° C.09-22-2011
20110229717METHOD FOR PRODUCING CRACK-FREE POLYCRYSTALLINE SILICON RODS - The invention relates to a method for producing polycrystalline silicon rods by deposition from the gas phase on a thin rod, wherein one or a plurality of disks consisting of a material having a lower electrical resistivity than the polycrystalline silicon under deposition conditions are introduced above the electrodes and/or below the bridge of the rod pair.09-22-2011
20110229658GRAPHITE ELECTRODE - The present invention relates to an electrode composed of carbon having at least two different zones, wherein an outer zone (A) forms the base of the electrode and carries one or more inner zones, wherein the innermost zone (B) projects from the zone (A) at the top and has a lower specific thermal conductivity than zone (A).09-22-2011
20110226628CONICAL GRAPHITE ELECTRODE WITH RAISED EDGE - The present invention relates to a carbon electrode having a conical or pyramidal tip, wherein the tip is surrounded on its side by a raised edge.09-22-2011
20110224367CROSS-LINKABLE MASSES BASED ON ORGANOSILICON COMPOUNDS - Two or multi-component condensation curing compositions can be cured in deep sections with low shrinkage, yet require no tin catalysts, or a significantly reduced tin catalyst level.09-15-2011
20110224366CROSSLINKABLE COMPOSITIONS BASED ON ORGANOSILICON COMPOUNDS - Condensation crosslinkable compositions based on organosilicon compounds contain at least one heterocyclic compound A[CR09-15-2011
20110224072Method For The Production Of Stable Binder-Free High-Purity Mouldings 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.09-15-2011
20110218137ANTIFOAMING COMPOSITIONS - Mixtures of silicone resin with an organopolysiloxane copolymer prepared by hydrosilylating a substantially linear polymer containing an isocyanate reactive group with an Si—H containing organopolysiloxane, and reacting this intermediate with a diisocyanate, are useful as long lasting defoamers which are compatible with numerous media.09-08-2011
20110217475Methods for Applying Polymer-Modified Wet Concrete Mixtures - The invention relates to methods for applying wet concrete mixtures containing cement, fillers, water, one or more polymers, and possibly further admixtures or additives according to the wet-mix shotcrete method, characterized in that the wet concrete mixtures, which contain at least one polymer based on one or more vinyl esters of unbranched or branched alkyl carboxlic acids having 1 to 15 C atoms and possibly one or more further ethylenically unsaturated monomers, are put into a concrete spraying machine and are applied to a subsurface by means of the wet-mix shotcrete method with a layer thickness of ≧3 cm.09-08-2011
20110213073CONTINUOUS POLYMERIZATION PROCESS - The invention provides a process for preparing polymers based on vinyl ester, ethylene and optionally further comonomers in the form of aqueous polymer dispersions thereof or of water-redispersible polymer powders by means of free-radically initiated continuous emulsion polymerization and optionally drying of the resulting polymer dispersions, characterized in that the emulsion polymerization is carried out in a cascade comprising at least one upstream heat exchanger and at least two downstream pressurized stirred tank reactors connected in series, such that the conversion on leaving the heat exchanger is at least 10% of the overall polymerization conversion.09-01-2011
20110207858Mixtures for producing biodegradable aliphatic polyester-based molded bodies and for producing polymer powders that can be re-dispersed in water - The object of the invention is mixtures for producing biodegradable molded bodies based on one or more aliphatic polyesters, characterized in that the mixtures also comprise one or more polymer powders that can be re-dispersed in water.08-25-2011
20110207650ANTI-FOAMING COMPOSITIONS - Effective defoaming compositions contains specific polyoxyalkylene-substituted organopolysiloxanes and at least one additive which is a particulate filler or an organopolysiloxane resin.08-25-2011
20110201712POLYURETHANE FOAM CONTAINING SILICONE - Low density, flame-retardant polyurethane foams are prepared by reaction of a polyisocyanate with a branched organopolysiloxane prepared by reaction of a reactive hydrogen-functional organopolysiloxane with a polyisocyanate followed by reaction with an amine. Water is preferably used as a blowing agent in a one shot process.08-18-2011
20110196165METHOD FOR PREPARING ALKYL CHLOROSILANES THROUGH REARRANGEMENT REACTIONS - The object of the invention is a method for preparing silanes of the general formula (1) R08-11-2011
20110196096METHOD FOR PRODUCING SILICONE MOULDED BODIES FROM LIGHT-CURABLE SILICONE MIXTURES - The invention relates to a method for producing silicone moulded BODIES wherein 1) a light-curable silicone mixture is moulded, 2) the moulded silicone mixture is then irradiated with light of 200 to 500 nm in order to cure the same such as to maintain the shape thereof at a temperature T and 3) then to thermally cure the moulded and irradiated silicone mixture at the temperature T to give moulded bodies.08-11-2011
20110195467METHOD FOR FERMENTATIVE PRODUCTION OF MENAQUINONE-7 USING ESCHERICHIA COLI - The invention relates to a method of producing menaquinone-7, characterized in that cells of an 08-11-2011
20110190525ORGANOPOLYSILOXANES HAVING POLYHYDROXYAMIDO GROUPS AND PREPARATION THEREOF - Polyhydroxyamido group-containing polyorganosiloxanes contain from 20 to 90% of end groups which are polyhydroxyamido groups, and are free flowing.08-04-2011
20110186087PROCESS FOR PURIFYING POLYCRYSTALLINE SILICON - Polysilicon is freed of metallic impurities without the use of HCl or H08-04-2011
20110182794METHOD FOR REMOVING TITANIUM FROM HEXACHLORODISILANE - The invention relates to a method for removing titanium compounds from hexachlorodisilane, wherein hexachloro-disilane is treated with an organic compound (V) which contains the structural units ≡C—S— or ≡C—O—.07-28-2011
20110178207Particle-stabilised emulsions - The invention relates to water-in-oil (W/O) or oil-in-water (O/W) emulsions containing an oil phase of at least one water-insoluble constituent; an aqueous phase; pyrogenic silica at the oil-water interface, the pyrogenic silica partially silylated such that non-silylated surface silanol groups remaining are between 95% and 5% of initial silanol groups, the equivalent of 1.7 to 0.1 surface SiOH groups per nm07-21-2011
20110171098METHOD FOR PRODUCING NEOPENTASILANES - The invention relates to a method for producing neopentasilanes of the general formula (1) Si(SiR07-14-2011
20110166373METHOD FOR PRODUCING AMINO-ORGANOSILANES - In the preparation of aminoorganylsilanes and cyclic aminosilanes by reaction of an organyl amine with a haloorganylsilane, the byproduct halide salt of the amine reactant is decomposed to amine by addition of a base whose halide salt forms a liquid phase at a temperature below 200° C., and the liquid base halide is separated from the reaction mixture.07-07-2011
20110166288SILICONE ELASTOMERS WITH IMPROVED CRACK RESISTANCE - The object of the invention is addition cross-linkable silicone masses (M), comprising: A) 100 parts by weight of polydiorganosiloxane containing alkenyl groups, said siloxane having at least 2 alkenyl groups per molecule, a viscosity of at least 1 000 000 mPa·s and at most 0.3 mol-% alkenyl groups, B) SiH-functional cross-linking agents, C) hydrosilylation catalyst, D) 10-80 parts by weight of a stiffening filler having a specific surface area of 50 m2/g to 350 m07-07-2011
20110166283Organosilicon Compounds and Their Use In Crosslinkable Compositions - Organosilicon compounds having units of the formula07-07-2011
20110163254Hydrophilic Organofunctional Silicone Copolymers - Hydrophilic silicone copolymers are the addition polymerization product of an unsaturated silicone macromer, and unsaturated polyoxyalkylene polyether, and optionally further unsaturated addition polymerizable monomers.07-07-2011
20110139035Aqueous Dispersions of Hydrophobic Silicic Acids - Method for the production of aqueous dispersions of hydrophobic silicic acids wherein the hydrophobic silicic acids are dispersed in an aqueous phase at a pH-value of 0 to 6 and in a subsequent step, the pH-value of the silicic acid dispersion is adjusted to a pH-value of 7-12 through the addition of a base.06-16-2011
20110133356METHOD FOR MANUFACTURING MOLDED BODIES FROM SILICONE RUBBER - Silicone moldings are conditioned in a conditioning oven at a pressure less than 150 hPa, and exhaust gas from the oven is scrubbed with cold water from which an organic phase is separated. The cold water is recirculated, and the scrubbed exhaust gas may be recirculated. Emissions of volatiles by this method are sharply reduced.06-09-2011
20110127219POROUS MEMBRANES MADE UP OF ORGANOPOLYSILOXANE COPOLYMERS - The object of the invention is porous membranes (M) comprising organopolysiloxane/polyurea/polyurethane/polyamide/polyoxalyl diamine copolymers of the general formula (1), where R, X, Y, D, E, F, B, B′, m, n, a, b, c and d have the meanings indicated in claim 06-02-2011
20110124752METHOD FOR THE PRODUCTION OF FOAMS ON SILICONE BASIS - The object of the invention is a method for the production of foams on silicon basis from polymer mixtures (A) containing silicon, wherein at least one compound (V) is used that contributes to the formation of the polymer network, and which carries at least one alkoxy silyl group of the general formula [1a], [1b], or [1c] ≡Si—O—(R05-26-2011
20110118493METHOD FOR PREVENTING POLYMERIZATION OF UNSATURATED ORGANOSILICON COMPOUNDS - Undesired polymerization of (meth)acrylatoalkoxysilanes during their industrial preparation and handling is accomplished by avoiding contact with surfaces containing more than 1% by weight of iron.05-19-2011
20110098435RU SULFOXIDE COMPLEXES, THEIR PREPARATION AND USE - Ru(0) complexes containing sulfoxide ligands and aliphatically unsaturated ligands are effective hydrosilylation catalysts useful in particular for addition curing organosilicon compositions.04-28-2011
20110083249Breathable Glove For Use In Packing and Sorting High-Purity Silicon - A breathable polyethylene glove as an overglove, over a cut- and puncture-resistant and nonfuzzing underglove, is useful for the non-contaminating packing of high-purity silicon, such as chunk polysilicon and silicon wafers.04-14-2011
20110076795MIXTURES OF ORGANOPOLYSILOXANE COPOLYMERS - Organopolysiloxane/polyuria/polyurethane block copolymers containing a compatible UV stabilizer are transparent and resistant to degradation.03-31-2011
20110070439Rod-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.03-24-2011
20110046294NANOPARTICULATE SILICONE ORGANO COPOLYMERS AND USE THEREOF IN COATING COMPOSITIONS - Nanoparticulate silicone organo copolymers exhibit controlled hydrophobicity in composite thermal insulation systems.02-24-2011
20110046032METHOD FOR HYDROLYZING SOLID METALLIC SALTS WITH AQUEOUS SALINE SOLUTIONS - The invention relates to a method for hydrolyzing hydrolyzable solid metallic salts, the metallic salts being reacted with aqueous saline solutions.02-24-2011
20110046031METHOD FOR HYDROLYZING METALLIC SALTS WITH EMULSIONS - The invention relates to a method for hydrolyzing hydrolyzable metallic salts, the metallic salts being reacted with emulsions of a) water and b) an inert liquid.02-24-2011
20110040036METHOD FOR PRODUCING SILICONE POLYETHERS - Silicone polyethers are prepared in a two stage process by reacting an unsaturated polyether with a first Si—H functional organopolysiloxane and then with a second organopolysiloxane, in which the weight ratio of silicon bonded hydrogen in the first and second organopolysiloxanes is at least 0.9. The reaction is more rapid than a single step process and produces a product with less unreacted Si—H content.02-17-2011
20110034574SILICONE-CONTAINING POLYISOCYANURATE FOAM - Silicone-containing polyurethane foams containing isocyanurate linkages are prepared from hyperbranched siloxanes having isocyanate groups or from hyperbranched siloxanes having isocyanate reactive groups and a polyisocyanate, the isocyanate groups being present in stoichiometric excess, in the presence of a trimerization catalyst. The foams are preparable at low densities and exhibit good flammability characteristics.02-10-2011
20110028647Silicone Materials Which Crosslink By Condensation At Room Temperature - Materials crosslinkable at room temperature by condensation, based on organosilicon compounds which cure to give permanently resilient materials, are catalyzed by a compound of the main or subgroups I and II in conjunction with an inorganic acid as a catalyst.02-03-2011
20110028646Condensation-Crosslinking Silicone Materials - Materials crosslinkable at room temperature by condensation are based on organosilicon compounds which cure to give permanently resilient materials, and which employ one or more compounds of the metals Li, Na, K, Mg, Ca, or Sr as catalyst.02-03-2011
20110024679WAX-LIKE BETA-KETOCARBONYL-FUNCTIONAL ORGANOSILICON COMPOUNDS - Long chain β-ketocarbonyl-functional organosilicon waxes are easily synthesized from organosilicon compounds bearing a reactive hydrogen bonded to N, O, or S, with a diketene. The products remain silicone-like despite being waxy, and can be used to gel low viscosity silicones to creamy formulations useful in cosmetics.02-03-2011
20110024266Method For Conveying Silicon Granules In An Encapsulated Conveying Channel - Silicon granules are conveyed in an encapsulated conveying channel by swaying movement of the channel produced by a permanent magnet excited by an external alternating electromagnetic field.02-03-2011
20110021688Defoamer Formulations - (A) Siloxane-based antifoams and 01-27-2011
20110015336Curable Silicone Compositions - The present invention relates to silicone compositions which can be crosslinked thermally by hydrosilylation, processes for producing them and also the use of the crosslinkable compositions.01-20-2011
20110011263METHOD FOR ABSORBING CHLORINE FROM GAS STREAMS - Chlorine is absorbed in water from gas streams of nitrogen, oxygen, argon, helium and mixtures thereof, in which process the formation of hypochlorous acid is suppressed through the regulated addition of hydrogen peroxide, and hydrochloric acid is formed.01-20-2011
20110009659METHOD FOR PRODUCING ALKYL CHLOROSILANES FROM THE RESIDUES OF THE DIRECT SYNTHESIS OF ALKYL CHLOROSILANES - High boiling residue from the direct synthesis of alkylchlorosilanes are converted in large part to monosilanes by heating the residue by passage of alternating current in a pressurized reactor.01-13-2011
20110009610Process For The Acetylation Of Lignocelluloses, Hemicelluloses, and Celluloses With Ketene - The invention relates to a process for acetylating celluloses, lignocelluloses and hemicelluloses such as wood, straw and cotton, and regenerated celluloses produced from natural products, by means of ketene.01-13-2011
20110009572POLYMER BLENDS CONTAINING POLYDIORGANOSILOXANE UREA COPOLYMERS - Polymer blends containing organopolysiloxane-polymer-polyurethane copolymers and thermoplastic polymers bearing epoxy, carboxylic acid, carboxylic acid ester, or carboxylic acid anhydride groups exhibit enhanced physical properties.01-13-2011
20110009553COLLOIDAL AQUEOUS ORGANOPOLYSILOXANE DISPERSIONS WHICH CONTAIN BINDERS AND THE USE THEREOF - Binder-containing aqueous dispersions containing organopolysiloxanes R01-13-2011
20110003906Process For The Production Of Silicone Coatings and Silicone Moldings From Photocrosslinkable Silicone Mixtures - Silicone coatings and moldings are produced from a photocrosslinkable silicone mixture which contains 01-06-2011
20100331483CURABLE POLYMER MIXTURES - Polymer blends containing polymers or low molecular weight compounds containing groups of the formula ≡Si—O—C(R12-30-2010
20100310852SELF-ADHESIVE EXPANDABLE SILICONE COMPOSITIONS FOR THE PRODUCTION OF SILICONE FOAM COMPOSITE PARTS - Crosslinkable compositions containing a crosslinkable organosilicon compound; a silica filler; a silicate or halogen analog thereof, a non-silicate resin-forming monomer; and a solid blowing agent containing intercalated liquid or liquid of crystallization, produce uniform foams of good pore structure, with firm adhesion to substrates, with water repellancy and water vapor permeability, and with high elongation and low compression set, and are suitable for use in applications where foamed chloroprene rubber has been used, and in other applications as well.12-09-2010
20100305348METHOD FOR THE PRODUCTION OF BETA-KETOCARBONYL-FUNCTIONAL ORGANOSILICON COMPOUNDS - β-ketocarbonyl-functional organosilicon compounds are prepared by reacting an organosilicon compound containing at least one primary amino group with a compound which liberates a diketene, the reaction taking place in the presence of an organic compound which inhibits or prevents the reaction of diketenes with primary or secondary amino groups. The products are different from those produced merely by the reaction of a diketene with an amino-group-containing organosilicon compound.12-02-2010
20100305273REACTION RESIN COMPRISING CORE-SHELL PARTICLES AND METHOD FOR THE PRODUCTION THEREOF AND THE USE THEREOF - Thermoset polymer systems are toughened without compromising other polymer properties by including 0.5 to 50 weight percent of 0.001 to 0.4 μm monodisperse core/shell polymers having at least an inner core of a silicone polymer and an outer core of organopolymer.12-02-2010
20100305263CROSS-LINKABLE MASSES COMPRISING PHOSPHORUS COMPOUNDS - Compositions that can be cross-linked by a condensation reaction comprise an organic polymer having at least one organyloxysilyl radical (A) and compounds (B) of the formula (I) [R12-02-2010
20100305229SILICON-CONTAINING FOAMS - Silicone foams having good foam structure and rapid cure are produced from foamable mixtures containing a physical blowing agent and an organically modified organopolysiloxane containing at least one urea or urethane group and an alkoxy(alkyl)siloxy unit.12-02-2010
20100305226POLYURETHANE FOAM CONTAINING SILICONE - Silicone-containing polyurethane foams prepared from isocyanate-containing organosilicon compounds and expandable graphite are flame retardant without displaying liquifaction of the polymer component when the foam is exposed to high temperatures.12-02-2010
20100303549AQUEOUS PREPARATIONS OF POLYMER-MODIFIED SETTING ACCELERATORS, AND USE THEREOF IN THE CONSTRUCTION INDUSTRY - The invention relates to aqueous preparations of polymer-modified setting accelerators, said preparations being characterised in that at least one setting accelerator and at least one cationically stabilised polymer are contained therein.12-02-2010
20100300495METHOD FOR PURIFYING POLYCRYSTALLINE SILICON - Polysilicon fragments are purified to remove metal contaminates by contacting the fragments with a purifying liquid at a flow rate >100 mm/sec. Effective removal without abrasion is accomplished.12-02-2010
20100292361HYDROSILYLATION REACTIONS ACTIVATED THROUGH RADIATION - η-cyclopentadienyl-tri(σ-hydrocarbyl) platinum compounds in which the cyclopentadienyl ring is linked to a hydrolysable silyl group by an alkylene group are effective light-activated hydrosilylation catalysts which are also non-volatile.11-18-2010
20100292353Silicone Antifoam Particles - Antifoam particles contain: (A) porous copolymers of urea or melamine or a mixture thereof with an alkanal, and (B) a silicone antifoam composition which is liquid at 0° C. The invention also provides pulverulent antifoam agents which comprise antifoam particles and optionally further carrier materials.11-18-2010
20100286426METHOD FOR PRODUCING ISOCYANATE-TERMINATED SILOXANES - Isocyanate-functional or protected isocyanate-functional organopolysiloxanes are prepared directly by reaction of a siloxane bearing at least one silicon-bonded hydroxyl group with an alkoxy-functional α-silane containing an isocyanate group or blocked isocyanate group.11-11-2010
20100280133AQUEOUS EMULSION CONTAINING A CYCLODEXTRIN DERIVATIVE, A PERFUME, AND A POLYSORBATE - Aqueous fragrance emulsions are prepared from a hydrophobic fragrance substance, a cyclodextrin derivative, and a polysorbate. The emulsions are stable despite containing a high proportion of fragrance and can be used to prepare uniform coatings on substrates.11-04-2010
20100274002CYCLODEXTRIN-SILANE COMPLEXES - Complexes of silanes and cyclodextrin or derivatives thereof are storage stable and allow target release of silane or decomposition products thereof.10-28-2010
20100273934CROSSLINKABLE VINYL ESTER COPOLYMERS AND THEIR USE AS LOW-PROFILE ADDITIVES - The invention relates to cross-linkable vinylester-copolymers obtained by means of radically initiated polymerisation of a) one or more vinyl esters and b) one or more ethylenically unsaturated, epoxy functional monomers, and by a subsequent reaction that is analogous to polymerisation of the thus obtained base polymers with one or more ethylenically unsaturated acids g), such that at least one ethylenically unsaturated, polymerizable group is introduced into each base polymer. Said invention is characterised in that the cross-linkable vinylester-copolymers have molecular weights of Mn of ≧6.500 g/mol.10-28-2010
20100267979METHOD FOR PRODUCTION OF ORGANOSILICON COMPOUNDS BY HYDROSILYLATION IN IONIC LIQUIDS - Organosilanes are prepared by hydrosilylation of unsaturated organic compounds by monomeric silanes containing at least one silicon bonded hydrogen, in a process wherein an ionic liquid containing a hydrosilylation catalyst is present as one phase, and the reactants are present in at least a second phase.10-21-2010
20100267854POLYURETHANE FOAM CONTAINING SILICONE - Silicone-containing polyurethane foams of low density may be prepared from hyperbranched siloxanes.10-21-2010
20100263574HYDROPHOBICIZATION OF SILICAS UNDER OXIDIZING CONDITIONS - Modified silicas having low silanol content which are compatible with polar compositions are prepared by modifying silica with a difunctional reactive organosilane or polydialkylsiloxane under oxidizing conditions below 400° C. The silicas have a distinct proportion of T10-21-2010
20100243944ORGANOPOLYSILOXANES CONTAINING QUATERNARY AMMONIUM GROUPS, THE PRODUCTION AND USE THEREOF - Polysiloxanes containing both epoxy groups and quaternary ammonium groups bonded to the polysiloxane through ring-opened epoxy groups provide a soft hand and wash fastness to fibrous substrates.09-30-2010
20100233489FLUOROPOLYMER-SILICON COMPOUNDS AND METHOD FOR PRODUCTION - Composites of a fluoropolymer and an organopolysiloxane/polyurethane/polyurea adhesive exhibit strong adhesion while also offering desirable handling properties.09-16-2010
20100227995PRODUCTION OF VINYL ACETATE - VINYL ESTER COPOLYMERS HAVING A LOW CONTENT OF HIGH-BOILING VINYL ESTERS - The invention relates to a method for the production of vinyl acetate-vinyl ester copolymers having a low content of high-boiling vinyl esters by the radically initiated polymerization of 4.9 to 95 wt.-% vinyl acetate, 4.9 to 95 wt.-% of one or more high-boiling vinyl esters, and optionally 0.1 to 40 wt.-% of one or more ethylenically unsaturated auxiliary monomers, characterized in that additionally 0.1 to 40 wt.-% of vinyl acetate is added at a conversion rate of the polymerization of 65 to 99.9%, wherein the amounts given in wt.-% each refer to the total weight of the monomers, and add up to 100 wt.-%.09-09-2010
20100222504SILANE-SUBSTITUTED RAFT-REAGENTS AND SILANE-CROSS-LINKABLE POLYMERS - Addition polymers prepared in the presence of condensation-crosslinkable silyl-functional RAFT reagents are preparable in solid or liquid form with low polydispersion.09-02-2010
20100221776Process for the Fermentative Production of Heterologous Proteins by Means of Escherichia Coli - A process for producing a heterologous protein is provided. The process comprises culturing an 09-02-2010
20100221169PROCESS FOR PREPARING HIGH-PURITY HEXACHLORODISILANE - Ultra high purity hexachlorodisilane is prepared from hexachlorodisilane-containing mixtures from numerous sources by distillation wherein water is present at less than 10 ppbw.09-02-2010
20100219380POLYCRYSTALLINE SILICON AND METHOD FOR THE PRODUCTION THEREOF - Brittle polysilicon rods having a rod cross-section of 80-99% available for electrical conduction and a flexural strength of 0.1 to 80 N/mm09-02-2010
20100210794SELF-ADHESIVE ADDITION CROSS-LINKING SILICONE COMPOSITIONS - Addition crosslinkable silicone compositions with excellent adhesion to polymer and other substrates contain an Si—H functional cycloorganosiloxane and an adhesion promoter having at least two aryl moieties linked by an intermediary linking group and containing at least one aliphatically unsaturated group.08-19-2010
20100197949PROCESS FOR PREPARING ORGANOSILICON COMPOUNDS CONTAINING ORGANYLOXY GROUPS - Organosilicon compounds bearing silicon-bonded organyloxy groups are prepared by mixing and reacting silanol-functional organosilicon compounds with organosilicon compounds containing at least two organyloxy groups in a mixer with an energy input of at least 0.2 kW/Kg of mixture. At this level of energy input, reaction to form the organyloxy-functional product is rapid, and can be achieved without supplying external heat, and also without catalysts, if desired.08-05-2010
20100197831CROSSLINKABLE POLYMER POWDER COMPOSITION WHICH IS REDISPERSIBLE IN WATER - The invention relates to a crosslinkable polymer powder composition redispersible in water, obtainable by means of free radical polymerization, in an aqueous medium, of one or more monomers from the group consisting of vinyl esters of straight-chain or branched alkylcarboxylic acids having 1 to 15 C atoms, methacrylates and acrylates of alcohols having 1 to 15 C atoms, vinylaromatics, olefins, dienes and vinyl halides, no epoxide-functional comonomers being copolymerized, and subsequent drying of the polymer dispersion obtained thereby, wherein, before and/or during the polymerization and/or before the drying of the polymer dispersion obtained thereby, an epoxy resin is added and, if appropriate after the drying, a curing agent crosslinking with the epoxy resin is added.08-05-2010
20100196811HIGHLY DISPERSE METAL OXIDES HAVING A HIGH POSITIVE SURFACE CHARGE - Metal oxides are modified by aminohydrocarbyl-substituted monoalkyltrisiloxy groups in a defined percentage of T08-05-2010
20100190227PHOTOREACTOR - The invention relates to photoreactors (07-29-2010
20100184907PRODUCTION OF A COMPOSITE COMPRISING INORGANIC MATERIAL AND ORGANIC POLYMER - Physical properties and soiling resistance of polymer-bound inorganic composites such as artificial stone are improved by incorporating a silane adhesion promoter and at least one of three organosilicon compounds.07-22-2010
20100184129SILICON MOULDED PART COMPRISING LUMINOUS BODIES - The invention relates to moulded parts containing a plurality of luminous bodies incorporated into a silicon matrix, the silicon matrix consisting of an inner soft silicon matrix A which is surrounded by at least one hard silicon matrix B. The silicon matrix B is optionally coated with a top coat C.07-22-2010
20100179341PROCESS FOR CONVERTING SI-H COMPOUNDS TO SI-HALOGEN COMPOUNDS - Silicon compounds containing Si—H groups are converted into silicon halides by reaction with hydrogen halide in the gas phase in the presence of a catalyst of gamma-alumina, which is also effective in dissociating hydrocarbons which may be present into lower boiling hydrocarbons.07-15-2010
20100168458PROCESS FOR CONVERTING SI-H COMPOUNDS TO SI-HALOGEN COMPOUNDS - Silicon compounds having Si—H groups are converted into silicon compounds having Si—X groups by reaction with HX in the gas phase in the presence of a quaternary ammonium or phosphonium halide catalyst or an ionic chloride of a heterocycle organically substituted on the heteroatom.07-01-2010
20100168392EXPRESSION OF FULL LENGTH IGG AND SECRETION INTO THE CULTURE MEDIUM OF PROKARYOTIC CELLS - A method for the production of an immunoglobulin or a functional fragment thereof in a prokaryotic host cell comprises transforming the host cell with (a) a first nucleic acid molecule comprising a nucleic acid sequence encoding a V07-01-2010
20100160590SILICONE RESINS HAVING A DEFINED REACTIVITY - Reactivity of silicone resins containing silanol functionality is enhanced by including HCl in the resin.06-24-2010
20100160543Continuous Process For The Production Of Base Compositions For Improved-Stability Silicone Compositions - Base compositions for addition-crosslinking silicone compositions are continuously produced by, in a first stage, homogeneously mixing and kneading organopolysiloxanes and flowable prehydrophobized oxidic reinforcing fillers in a continuous kneading machine with kneading chambers arranged alongside one another. In a second, downstream, stage of the process, the compositions produced in the first stage are subjected to aftertreatment in a mixing apparatus in which the compositions have been subjected to a mixing procedure with introduction of shear force.06-24-2010
20100160493CONTINUOUS PROCESS FOR THE PRODUCTION OF ORGANOPOLYSILOXANE COMPOSITIONS - Base compositions for silicone compositions with viscosity <500,000 mPas are continuously produced by, in a first stage, homogeneously mixing and kneading organopolysiloxanes (A) and prehydrophobized oxidic reinforcing fillers (B) in a continuous kneading cascade with kneading chambers arranged alongside one another, and in a second downstream stage, the compositions produced in the first stage of the process are subjected to aftertreatment in a mixing apparatus where the compositions have been subjected to a mixing procedure with introduction of shear force.06-24-2010
20100159147PRODUCTION OF SOLID MATERIALS BASED ON HYDRAULICALLY SETTING COATING AGENTS - The invention relates to a method for producing solid materials having an air content of ≦16 vol. % in relation to the total volume of solid materials, characterised in that hydraulically setting coating agents containing at least one cationic protective colloid are applied to an undersurface by means of mechanical methods using compressed air with air quantity factors of up to 100 or by manual methods.06-24-2010
20100154357METHOD AND DEVICE FOR PACKAGING POLYCRYSTALLINE BULK SILICON - An automated filling system for introducing crushed polysilicon fragments into shipping bags without significant contamination positions a freely suspended energy absorber into a freely suspended bag of non-contaminating material prior to filling, and following filling, the energy absorber is removed, and the bag is sealed. The system can replace manual packaging which has been required for semiconductor applications.06-24-2010
20100152327Process For The Continuous Preparation Of High Viscosity Silicon Compositions - Organopolysiloxane compositions having a 25° C. viscosity of at least 500 Pa·s., are continuously prepared by mixing and kneading organopolysiloxanes and fillers in a first process stage, in a kneading cascade having at least two kneading chambers arranged in series each containing two kneading tools on parallel axes, capable of being driven in corotating or counterrotating directions, the chambers connected to one another by means of openings through which material can pass in a direction transverse to the axes of the kneading tools, the first kneading chamber having a feed opening and the last kneading chamber having a discharge opening, to give raw mixtures and kneading and degassing the raw mixtures, in a second process stage at from 100° C. to 250° C. in a continuously operated double trough kneader having a discharge screw.06-17-2010
20100147209Polycrystalline Germanium-Alloyed Silicon And A Method For The Production Thereof - A rod having a length of 0.5 m to 4 m and having a diameter of 25 mm to 220 mm, comprising a high-purity alloy composed of 0.1 to 50 mol % germanium and 99.9 to 50 mol % silicon, the alloy having been deposited on a thin silicon rod or on a thin germanium-alloyed silicon rod, the deposited alloy having a polycrystalline structure.06-17-2010
20100144519METHOD FOR PRODUCING STABLE, HIGH-PURITY MOLDED BODIES FROM PYROGENIC METAL OXIDES WITHOUT THE ADDITION OF BINDERS - Shaped bodies with good strength properties are prepared from pyrogenic metal oxide(s) by suspending the metal oxide(s) in a liquid, milling to activate the metal oxide particles, forming an activated homogenous suspension, coagulating the suspension, and forming shaped bodies therefrom.06-10-2010
20100137544ORGANOPOLYSILOXANES AND METHOD FOR THE PRODUCTION THEREOF - The invention relates to organopolysiloxane compounds containing per-molecule at least one structural unit of general formula (I) O06-03-2010
20100130642LACQUERS CONTAINING PARTICLES WITH PROTECTED ISOCYANATE GROUPS - Particles obtained by silylating particles of a metal oxide or silicon oxide SOl with a silane containing at least one blocked isocyanate group are easily incorporated into coating materials such as clearcoats and topcoats, and imbue these coatings with high scratch resistance even at low filler content.05-27-2010
20100129750DISPERSIBLE NANOPARTICLES - Pulverulent particles (P) have surface groups of the general formula (1): —O05-27-2010
20100087576Crosslinkable Materials Based On Organosilicon Compounds - Moisture-curable organosilicon compositions which are storable in the absence of water, and crosslinkable on admission of water at room temperature to give elastomers, are based on organosilicon compositions containing:04-08-2010
20100086783REDISPERSIBLE CORE-SHELL POLYMERS AND A PROCESS FOR PREPARING THEM - Redispersible core/shell elastomeric particles are prepared by a process wherein a silicone elastomer core is covered with a second silicone shell, followed by an organic polymer shell.04-08-2010
20100081765FREE-RADICAL POLYMERIZATION PROCESS - The invention relates to a process for free-radically initiated heterophase polymerization, in which the polymerization of ethylenically monomers proceeds in a phase dispersed in the continuous phase, characterized in that one or more additives which are soluble in the continuous phase and insoluble in the disperse phase and stop the polymerization of the ethylenically unsaturated monomers in the continuous phase is/are added before or during the polymerization.04-01-2010
20100078117METHOD FOR ADHESIVE BONDING WITH FOAMABLE MIXTURES CONTAINING ALKOXYSILANE-TERMINATED PREPOLYMERS - Surfaces are adhesively bonded by employing a highly reactive alkoxysilyl-functional foamable mixture, and pressing the surfaces together with the foam prepared from the foamable mixture between the surfaces.04-01-2010
20100076170PROCESS FOR PREPARING ORGANOPOLYSILOXANES - A targeted molecular weight of an organopolysiloxane is obtained in a two stage hydrolysis by hydrolyzing a chlorosilane with from 0.002 to 0.6 mol of water in a first step in the presence of alcohol, in which the pressure and/or temperature are adjusted such that following further hydrolysis in a second step, the targeted molecular weight is obtained.03-25-2010
20100069656PROCESS FOR PREPARING ISOCYANATOORGANOSILANES - Isocyanate-functional silanes, particularly isocyanate-functional α-silanes, are prepared in good yield by a liquid phase thermolysis conducted in the presence of a catalyst at a pressure of >100 mbar, or >80 mbar when a thin-film evaporator is used.03-18-2010
20100069551ULTRAHYDROPHOBIC COATINGS - Ultrahydrophobic coatings are prepared by coating a substrate with a coating system containing an addition polymer containing moieties derived from a mono- or polyethylenically unsaturated organopolysiloxane, and hydrophillic particles.03-18-2010
20100068394SILOXANES CONTAINING METHYLOL GROUPS - N-methylol-containing organosiloxane polymers further containing at least one Si-bonded N-hydrocarbyl-N-(methylol or methalkoxy)-hydrocarbyl group are storage stable and retain their ability to post-crosslink, and display excellent permanence on many substrates. They are particularly useful for the treatment of fibers, textiles, and leather.03-18-2010
20100063187COMPOSITIONS CONTAINING PHOSPHONATE-FUNCTIONAL PARTICLES - Phosphonatoalkylsilyl-functional particles have high stability and resistance to agglomeration. When used in curable binder compositions, the particles contribute to a high level of scratch resistance.03-11-2010
20100047589LAMINATES COMPRISING THERMOPLASTIC POLYSILOXANE-UREA COPOLYMERS - Photovoltaic modules are prepared by laminating an active device to a glass cover plate by means of a thermoplastic siloxane copolymer. The siloxane copolymer provides good adhesion, freedom from water absorption, and yet can be reworked either in the field or during recycling of the solar cell components.02-25-2010
20100041909METHOD FOR THE PRODUCTION OF POLYMERIZABLE SILICONES - Siloxy-substituted silane-containing polymerizable silicones are prepared in high purity by metering a substituted alkoxysilane into a mixture of disiloxane, acetic acid, and acid catalyst, adding acetyl chloride, separating an acidic phase from a product phase, and adding hexamethyldisilazane to the product phase, which is then distilled.02-18-2010
20100041822CROSSLINKABLE REACTIVE SILICONE ORGANIC COPOLYMERS AND METHOD FOR THE PRODUCTION AND USE THEREOF - The invention relates to crosslinkable reactive silicone organic copolymers, obtainable by the radically initiated solution polymerization of a) one or more ethylenically unsaturated organic monomers, and b) one or more silicon macromers, characterized in that c) one or more ethylenically unsaturated monomers containing at least one further functional group is or are copolymerized in an organic solvent or solvent mixture and that monomer units c) of the prepolymers thus obtained are bonded by polymer analog reaction with one or more additional monomers in such a way that at least one crosslinkable reactive group is introduced in the silicone organic copolymers.02-18-2010
20100041796Use Of Vinyl Chloride-Ethylene Copolymers For Hydrophobing Construction Substances - Copolymers of ethylene and vinyl chloride also containing a protective colloid, optionally in conjunction with a fatty acid compound or precursor thereof or with an organosilicon compound, can be employed to increase the water repellency of hydraulically settable construction materials.02-18-2010
20100029972METHOD FOR THE PRODUCTION OF POLYMERIZABLE SILICONES - Polymerizable siloxy-substituted silanes are obtained in high yield and purity by adding a substituted alkoxysilane to a mixture of disiloxane, acetic acid, sulfuric acid, and optionally an acidic catalyst, separating a product phase from an acidic phase, adding hexamethyldisilazane to the product phase and filtering off a resulting salt, followed by distillation.02-04-2010
20100029888Click-Reaction Crosslinkable Multicomponent Silicone Compositions - Multicomponent silicone compositions which can be crosslinked via the click reaction and which, after mixing of the individual components, harden to give an elastomeric material contain: 02-04-2010
20100029473METHOD 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.02-04-2010
20100025373PYROGENIC SILICA PRODUCED IN A PRODUCTION FACILITY WITH HIGH CAPACITY - A large scale process for preparing fumed silica with consistent product parameters wherein a silica precursor compound is fed to a burner at ≧100 Kg/h along with a combusting gas at ≧300 m02-04-2010
20100022796METHOD FOR PRODUCING CATALYSTS AND THEIR USE FOR THE GAS PHASE OXIDATION OF OLEFINS - Especially physically stable metal oxide catalyst supports are prepared by suspending a metal oxide in a continuous phase, activating by fine dispersion, coagulation to a viscoelastic mass, shaping, drying, and calcining. The catalyst support thus prepared may be treated with catalytic agents to produce supported catalysts for olefin oxidation.01-28-2010
20100022793IRIDIUM-CATALYZED PRODUCTION METHOD FOR ORGANOSILICON COMPOUNDS - Alkyl silanes are prepared by silylating an unsaturated hydrocarbon with an Si—H functional silane employing an iridium chloride coordination compound as a catalyst and a polymeric polyene as a cocatalyst. Reaction bottoms can be worked up to provide an iridium-containing composition which remains catalytically active.01-28-2010
20100022738HIGH SOLIDS CONTENT SOLUTIONS OF ORGANOSILICONE COPOLYMERS WITH HIGH SILICONE CONTENT AND HIGH SOLIDS CONTENT, AND PROCESS FOR PREPARATION THEREOF, AND USE THEREOF - The invention relates to soliconorganocopolymers with high silicon content, with a silicon content of ≧25 wt. % in form of a high solid content solution thereof, with a solid content of >30 wt. %, obtainable with radically initiated solution polymerization of a) 20 to 75 wt. % of one or more ethylenic unsaturated monomers, and b) 25 to 80 wt. % of one or more silicones of the general formula R01-28-2010
20100021725ORGANOFUNCTIONAL SILICONE RESIN LAYERS ON METAL OXIDES - Pyrogenic silicic acid surface modified with a layer of a DT, DQ, or T silicone resin may be used in liquid media such as paints and coatings with little effect on the viscosity of the liquid.01-28-2010
20100016537CONTINUOUS POLYMER-ANALOGOUS REACTION OF REACTIVE SILANE MONOMERS WITH FUNCTIONALIZED POLYMERS - Functional polymers having silyl end groups are prepared in a continuous process by polymer analogous reaction of a reactive polymer and inter-reactive silane. The polymer products are surprisingly uniform in properties and exhibit higher physicochemical properties as well.01-21-2010
20100010165SELF-DISPERSIBLE SILICONE COPOLYMERS AND METHOD FOR THE PRODUCTION AND USE THEREOF - The invention relates to highly transparent organofunctional silicone copolymers, being self-dispersible in water without emulsifiers or protective colloid, being obtained by radically initiated solution polymerization of a) one or more ethylenically unsaturated organomonomers, and b) one or more siliconmacromeres, characterized in that c) one or more water soluble comonomeres are copolymerized in an organic solvent or solvent mixture.01-14-2010
20100008842METHOD FOR THE PRODUCTION OF TRICHLOROSILANE - High yields of trichlorosilane are achieved in the reaction of tetrachlorosilane and hydrogen at a temperature in the range of 900° C. to 1300° C. and a pressure above the critical pressure of the reactants.01-14-2010
20100007039METHOD FOR PRODUCING GRANULES FROM THERMOPLASTIC SILOXANE POLYMERS - Non-blocking polymer pellets are produced in spherical or nearly spherical form by introducing molten polymer directly from a polymerization reactor into a coolant and pelletizing just prior to, simultaneously with, or immediately following entry into the coolant such that residual heat allows the polymer pellets to change their shape to eliminate sharp corners, particularly cylindrical shapes, and assume a spherical-type morphology.01-14-2010
20100004475PROCESS FOR PREPARING ISOCYANATOORGANOSILANES - The invention provides a process for preparing silanes which possess an isocyanate function, in which the silanes, after their chemical preparation, are purified and, after the purification, are handled exclusively in an atmosphere with a relative air humidity below 10%.01-07-2010
20100004354ALKOXYSILYL FUNCTIONAL OLIGOMERS AND PARTICLES SURFACE-MODIFIED THEREWITH - Oligomers are prepared by polymerizing unsaturated silanes, optionally along with a copolymerizable ethylenically unsaturated monomer. The oligomers are particularly useful for preparing core-shell particles.01-07-2010
20100001106METHOD AND DEVICE FOR PRODUCING CLASSIFIED HIGH-PURITY POLYCRYSTALLINE SILICON FRAGMENTS - Polysilicon rods from the Siemens process are crushed into fragments and further processed to fragments having very low metal contamination in an economical manner by purposefully fabricating parts contacting the polysilicon from materials which cause high metal contamination, and removing the metal contamination by a cleaning bath or baths tailored to the particular metal contamination. By this process, economical materials previously scrupulously avoided, such as low alloy steel, can be used for crushers, conveyors, and other polysilicon-contacting parts of the crushing and classifying system.01-07-2010
20090321016Epoxy-modified vinyl chloride-vinyl ester copolymer solid resin - A process for the preparation of epoxy-modified vinyl chloride-vinyl ester copolymers in the form of the solid resins involves aqueous, free radical polymerization of a mixture comprising12-31-2009
20090318724HYDROSILYLATION METHOD - Compounds containing carbon-carbon double bonds and/or carbon-carbon triple bonds are hydrosilylated with linear organopolysiloxanes having diorganosiloxy units and Si—H groups, produced by reacting diorganodichlorosilanes and monochlorosilanes and optionally dichlorosilanes with water in a first step, where at least one of the monochlorosilanes or dichlorosilanes contain Si—H groups to give a partial hydrolysate and gaseous hydrogen chloride, and in a second step, treating the partial hydrolysate with water to remove SiCl groups still present to form hydrochloric acid, and producing a hydrolysate containing the organopolysiloxanes.12-24-2009
20090295361Apparatus For Converting Electrical Energy For Conductively Heating Semiconductor Material In Rod Form - The present invention relates to an apparatus for converting electrical energy for conductively heating rod-shaped semiconductor materials. The apparatus is particularly useful to control the temperature of electrically heated rods in the Siemens process for deposition of silicon by chemical vapor deposition.12-03-2009
20090287009METHOD FOR EVAPORATING COMPONENTS OF A LIQUID - Mixtures containing high boiling and low boiling components, at least one component being dissociatable into ions, are separated effectively by heating by passing an alternating electrical current through the mixture. The process is particularly effective in the workup of crude alkylchlorosilanes from the direct synthesis.11-19-2009
20090286941Process For Preparing Organopolysiloxanes Having Quaternary Ammonium Groups - Organopolysiloxanes having quaternary ammonium groups are prepared by first,11-19-2009
20090286899PLATINUM CATALYSTS SUPPORTED ON NANOSIZE TITANIUM DIOXIDE, THEIR USE IN HYDROSILYLATION AND COMPOSITIONS COMPRISING SUCH CATALYSTS - Nanosize titanium dioxide having supported thereon metallic platinum are efficient hydrosilylation catalysts whose hydrosilylation activity may be increased by irradiation. The catalysts are prepared by depositing soluble platinum compounds on a titanium dioxide sol or titanium dioxide pigments followed by drying, calcining, and reduction to platinum metal. The catalysts are particularly useful in preparing addition-curable organopolysiloxane elastomers.11-19-2009
20090280048PRODUCTION OF PYROGENIC METAL OXIDES IN TEMPERATURE-CONTROLLED REACTION CHAMBERS - Pyrogenic metal oxides having consistent quality and consistency between batches are prepared by flame hydrolysis in a reactor whose walls are cooled to below 500° C.11-12-2009
20090264612ALKOXYSILANE-TERMINATED PREPOLYMERS - Alkoxysilyl-terminated prepolymers in which the alkoxysilyl group is linked to a tertiary nitrogen group through a Cl carbon spacer exhibit excellent moisture curing reactivity and yet are easily prepared. The tertiary nitrogen group-containing α-aminoalkoxysilyl group is introduced into the prepolymer by reacting a tertiary nitrogen group-containing α-aminoalkoxysilane with an isocyanate-terminated prepolymer or isocyanate-functional precursor thereof.10-22-2009
20090260769METHOD FOR TREATING CELLULOSE-CONTAINING FIBERS OR PLANAR STRUCTURES CONTAINING CELLULOSE-CONTAINING FIBERS - Cellulosic substrates are treated with compound(s) containing at least two primary amino groups and compounds containing at least one β-ketocarbonyl group. The substrates exhibit good strength and hand properties.10-22-2009
20090253925METHOD FOR THE CONTINUOUS PRODUCTION OF SILICON COMPOUNDS BEARING AMINO GROUPS - N-organylaminoorganyl- and N,N-diorganylaminoorganyl-triorganylsilanes are prepared continuously with high space/time yield, high product purity, and low halide content, while simultaneously increasing process safety, by introducing haloalkyltriorganylsilane and a 1 to 100 fold motor excess of organylamine into a continuous reactor with a residence time which may be less than 10 minutes, thus minimizing competing side reactions.10-08-2009
20090247684COMPOSITION BASED ON ORGANOSILICON COMPOUNDS - Organosilicon compositions which can be cured to produce elastomers, in particular elastomers suitable for use in the food industry, contain very fine particulate aluminum oxide powder in minor amount. Non-blocking sheets and pellets can be formed from the compositions, and later molded and cured.10-01-2009
20090221842METHOD FOR THE PRODUCTION OF ORGANOSILICON COMPOUNDS COMPRISING CARBOXY RADICALS - Organosilicon compounds bearing carboxylic acid groups are easily and economically replaced in high yield by oxidation of a carbinol-functional organosilicon compound with an oxidizer in the presence of a moderator at a pH≧3. Carboxyl-functional organopolysiloxanes highly useful as textile softeners may be obtained by this method.09-03-2009
20090198034PROCESS FOR THE PRODUCTION OF HIGH-MOLECULAR-WEIGHT ORGANOPOLYSILOXANES - High-molecular-weight siloxane polymers are prepared in a multi-step process wherein an Si—H functional linear siloxane containing silanol groups is reacted with a hydrosilylatable organic compound, and the product is then condensed.08-06-2009
20090197989COMPOSITION COMPRISING CORE-SHELL PARTICLES AND ITS PREPARATION - A composition comprising core-shell particles having an organopolysiloxane core and a crosslinked or non-crosslinked organopolymer shell and one or more reactive resins. In some variations, the composition has a crosslinked or non-crosslinked organopolymer core. Additional different siloxane-containing particles are optionally included.08-06-2009
20090197081Beta-KETOCARBONYL-FUNCTIONAL SILOXANE POLYMER-CONTAINING COMPOSITIONS - β-ketocarbonyl-functional organosilicon compounds in combination with an Si-free polyamine having at least two primary amino groups, provide storage stable compositions useful for fabric treating. The treated fabrics show less propensity toward yellowing.08-06-2009
20090186982ORGANOSILICONE COPOLYMERS - Organosilicon polymers prepared by copolymerizing an unsaturated methylol compound, an unsaturated monomer, and an organopolysiloxane bearing at least one unsaturated group exhibit good binding and crosslinking properties when applied to fibers, and the ability to tailor substrate hydrophobicity.07-23-2009
20090182090USE OF CARBOXYL-FUNCTIONAL POLYVINYL ACETATES FOR PRODUCING BMC PARTS - BMC molding compositions containing carboxy-functional polyvinyl acetate resins having minimally 3 weight percent of carboxy-functional monomers exhibit only modest increase in viscosity upon addition of fillers as compared to similar compositions employing polyvinyl acetate homopolymers.07-16-2009
20090180944Process For Depositing Polycrystalline Silicone - Polycrystalline silicon is prepared by thermally decomposing a reaction gas comprising hydrogen and a silicon-containing gas in a reaction chamber containing heated silicon, depositing additional silicon thereon, and forming an offgas; and 07-16-2009
20090176959ORGANOSILICON COMPOUNDS THAT CONTAIN Beta-KETOAMIDE GROUPS AND ORGANIC POLYMERS BOUND VIA ENAMINE BONDS, AND METHOD FOR PRODUCING THEM - Organosilicon compounds containing β-ketoamide groups and organic polymer groups bound via enamine bonds are prepared by reaction of compounds bearing at least one β-ketocarbonyl functionality with organosilicon compounds bearing aminoalkylaminoalkyl groups. The products have the same uses as siloxanes containing polyether and acetoacetate groups.07-09-2009
20090176920PARTICLES 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.07-09-2009
20090171056NOVEL RU COMPLEXES, PRODUCTION AND USE THEREOF - Ruthenium compounds which have, in their ligand sphere, at least one η07-02-2009
20090156774METHOD FOR PRODUCING SILOXANE COPOLYMERS - Siloxane copolymers are prepared stepwise by reacting an aminoalkyldiorganoalkoxysilane with a di- or polyisocyanate to form an alkoxysilyl-terminated urea compound, and the urea compound or its reaction product with water is subsequently reacted with a di- or polysilanol-functional polymer to form a copolymer.06-18-2009
20090156755Crosslinkable Silicone Coating Compositions - Crosslinkable silicone coating compositions are prepared from 06-18-2009
20090156737TRANSPARENT POLYMER MIXTURES WHICH CONTAIN ALKOXYSILANE-TERMINATED POLYMERS - Room temperature, moisture curable, transparent, and non-yellowing polymer blends contain at least one alkoxysilyl-terminated polymer bearing an end group06-18-2009
20090149595SILICONE POLYMERS CROSSLINKABLE VIA METHYLOL GROUPS - Storage stable compounds having at least two organopolysiloxane groups and at least one methylol group are useful as coatings on textile, paper, and other substrates, and are post-crosslinkable.06-11-2009
20090144912TREATMENT OF PROTEINACEOUS, FIBROUS ENTITIES WITH BETA-KETOCARBONYL-FUNCTIONAL SILOXANE POLYMERS - Leather substrates are rendered water repellant by treatment with β-ketocarbonyl-functional siloxane polymers containing at least one radical of the formula06-11-2009
20090143496CROSSLINKABLE SILOXANE-UREA COPOLYMERS - Siloxane/urea copolymers contain pendant unsaturated groups crosslinkable by actinic radiation. The copolymers are suitable for use as non-creeping hotmelt adhesives and for other uses as well.06-04-2009
20090139434AQUEOUS DISPERSIONS OF ORGANOSILICON COMPOUNDS - Aqueous dispersions of organosilicon compounds contain: 06-04-2009
20090137446DEFOAMER COMPOSITIONS - A composition for defoaming includes an organosilicon compound having radicals that are attached directly to the silicon and that have a specific number of carbon atoms. The composition may also include filler particles, and organopolysiloxane resin, and combinations thereof.05-28-2009
20090131591ALKOXYSILANE CROSS-LINKED POLYMERS HAVING IMPROVED ELASTIC RECOVERY PROPERTIES - Moisture curable alkoxysilyl-functional polymers crosslinkable to elastomers having improved recovery properties are prepared by incorporating in the curable composition, both an aminoalkylalkoxysilane and an epoxyalkylalkoxysilane.05-21-2009
20090131585Organosilicon Compounds and Their Use In Crosslinkable Compositions - Organosilicon compounds having units of the formula05-21-2009
20090124753Crosslinkable Substances Based on Organosilicon Compounds - Crosslinkable compositions especially useful as one component sealants include a basic nitrogen compound and an oxathiazine or derivative thereof as an antimicrobial. Despite the presence of the basic nitrogen compound, the compositions are resistant to coloration both before and after cure, while yet exhibiting antimicrobial activity.05-14-2009
20090120848DEVICE AND METHOD FOR THE FLEXIBLE CLASSIFICATION OF POLYCRYSTALLINE SILICON FRAGMENTS - Polycrystalline silicon fragments are sorted into defined particle fractions in a flexible manner independent of initial particle size distribution and desired fraction size by a first mechanical screening into a fine fraction and residual fraction, followed by optoelectronic sorting of the residual fraction.05-14-2009
20090114748DEVICE AND METHOD FOR COMMINUTING COARSELY CRUSHED POLYCRYSTALLINE SILICON - Polysilicon is crushed with a minimum of manual and machine crushing steps by utilizing a large diameter roll crusher, the circumferential crushing surface of which is formed of a plurality of reversibly mounted, close fitting hard metal plates. Reproducible crushing along with such low metal contamination that subsequent cleaning of the crushed polysilicon is not necessary are both obtained.05-07-2009
20090105406USE OF FUNCTIONALIZED POLYVINYL ESTERS FOR INCREASING THE SURFACE TENSION OF BMC/SMC PARTS - Paintability of articles prepared by molding of an unsaturated polyester moulding composition is enhanced by replacing a portion of low-profile additives contained in the composition with solid polyvinyl acetate copolymer(s) containing from 3 to 10 weight percent of monoethylenically unsaturated organic carboxylic acid monomer units.04-23-2009
20090105358SILICONE-CONTAINING FOAMS - Foamable, isocyanate-functional organopolysiloxanes with more uniform molecular weights are produced by reaction of an aminoalkyl or hydroxyalkyl functional organopolysiloxane with a stoichiometric excess of a di- or polysiocyanate in the presence of a compatibilizer which provides a homogenous reaction mixture.04-23-2009
20090104238METHOD FOR PRODUCING POLYMERS MODIFIED BY SILICONE - Silicone-modified polymers of ethylenically unsaturated monomers are prepared in the form of aqueous polymer dispersions or water-redispersible polymer powders, by 04-23-2009
20090088524CURABLE SILICONE COMPOSITIONS - The present invention relates to silicone compositions which can be crosslinked thermally by hydrosilylation, a process for producing them, platinum catalysts used for this purpose and the use of the crosslinkable compositions.04-02-2009
20090069524HYDROSILYLATION PROCESS IN THE PRESENCE OF RUTHENIUM CATALYZERS - Hydrosilylatable compositions employ ruthenium compounds with a ligand sphere comprising at least two independent carbon π-bonded ligands, at least one of these ligands being selected from the group consisting of η03-12-2009
20090062471CROSSLINKABLE 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.03-05-2009
20090060858HAIRCARE COMPOSITION - Hair care compositions contain from 0.1 to 12 weight percent of a silicone copolymer or saponification product thereof, prepared from silicones, at least 10% of which contain polymerizable groups, 0.5-14% of hydrophilic comonomers, and 30-99.9% of hydrophobic comonomers. The compositions exhibit good hair care properties.03-05-2009
20090059719PROCESS FOR THE CONTINUOUS PREPARATION OF CROSSLINKABLE MATERIALS BASED ON ORGANOSILICON COMPOUNDS - The present invention relates to a process for the continuous preparation of mixtures containing organosilicon compound (A) and solid (B) and optionally further components in a mixing unit comprising at least one rotating mixing shaft, wherein at least one mixing shaft makes an angle of inclination with the horizontal of more than 10 degrees and the inlet opening for the solid (B) is arranged higher than the outlet opening.03-05-2009
20090053123PROCESS FOR RECYCLING HIGH-BOILING COMPOUNDS WITHIN AN INTEGRATED CHLOROSILANE SYSTEM - Highly pure pyrogenic silica is produced in an integrated polycrystalline silicon production plant by separating offgas from polycrystalline silicon production into a high boiler fraction, vaporizing this fraction into a pyrogenic silica burner and reacting with air and/or oxygen and hydrogen to form pyrogenic silica.02-26-2009
20090036702PRODUCTION OF ORGANOSILANES IN THE PRESENCE OF IRIDIUM-CATALYSTS AND COCATALYSTS - Organosilanes are prepared efficiently by hydrosilylation of an alkene in the presence of iridium compounds as catalysts and an inorganic, metal organic, or organic oxidant as cocatalyst. side reactions and catalyst deactivation are thereby minimized.02-05-2009
20090036700Process For Preparing Alkyl(Methoxymethyl)Trimethylsilanylmethylamines - Alkyl(methoxymethyl)trimethylsilanylmethylamines are prepared by reacting alkyltrimethylsilanylmethylamines with a substantially equimolar amount of paraformaldehyde and methanol in the presence of a base.02-05-2009
20090036618Multistage Process for Preparing Organopolysiloxanes Comprising Aminoalkyl Groups - Organopolysiloxanes having aminoalkyl groups are prepared by02-05-2009
20090016947RECYCLING OF HIGH-BOILING COMPOUNDS WITHIN AN INTEGRATED CHLOROSILANE SYSTEM - Trichlorosilane production is increased while simultaneously lowering environmental burden due to destruction and disposition of high boilers by feeding high boilers from trichlorosilane production or from polycrystalline silicon production into a fluidized bed for production of trichlorosilane from metallic silicon and hydrogen chloride.01-15-2009

Patent applications by WACKER CHEMIE AG