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Wacker-Chemie GmbH Patents
Assignee:
Wacker-Chemie GmbH
Address:
Munich, DE
No. of patents:
778
Patents:


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16










Patent Number Title Of Patent Date Issued
RE34761 Process for the preparation of trichloroethylene October 18, 1994
In the process, a copper/rhodium catalyst impregnated with 0.1 to 10.0% by weight, based on the total weight of active charcoal catalyst support and active components, of a water-soluble phosphonium halide is employed for the preparation of trichloroelethylene from perchloroethylene and
RE32504 Room temperature stable organopolysiloxane compositions September 15, 1987
Room temperature stable organopolysiloxane compositions containing organosilicon compounds having Si-bonded hydrogen atoms and aliphatic multiple bonds, a platinum catalyst which promotes the addition of Si-bonded hydrogen atoms to the aliphatic multiple bonds and an inhibitor which
RE28780 Process for the preparation of free-flowing, lump-free redispersible, synthetic resin powders April 20, 1976
This invention relates to a process for the preparation of free-flowing, lump-free redispersible synthetic resin powders by spraydrying aqueous dispersions of synthetic resins containing an added amount of a water-soluble condensation product from melamine, formaldehyde and containin
7737269 Process for preparing an alpha-lipoic acid/cyclodextrin complex and product prepared June 15, 2010
The invention relates to a process for the preparation of a cyclodextrin/alpha-lipoic acid complex, wherein in a first step, an alpha-lipoic acid and a cyclodextrin are dissolved in an aqueous alkaline solution having a pH above pH 7, and in a second step an acid is added to lower th
7708828 Dust-free and pore-free, high-purity granulated polysilicon May 4, 2010
A polycrystalline granulated silicon is made of particles which have a density of greater than 99.9% of the theoretical solid density and therefore have a pore content of less than 0.1% and have a surface roughness R.sub.a of less than 150 nm.
7671125 Process for the continuous preparation of high-viscosity silicone compositions March 2, 2010
A process for preparing organopolysiloxane compositions (A) having a viscosity measured at 25.degree. C. of at least 500 Pas., wherein organopolysiloxanes (O) and fillers (F) are mixed and kneaded in a first process stage in a kneading cascade having at least two kneading chambers ar
7667057 Cosmetic composition comprising a complex of cyclodextrin and vitamin F February 23, 2010
Cosmetic or dermatological preparations are based upon vitamin F, and the vitamin F is present in the form of a complex with a cyclodextrin which includes alpha-cylodextrin, beta-cyclodextrin, and gamma-cyclodextrin.
7549600 Apparatus and method for the low-contamination, automatic crushing of silicon fragments June 23, 2009
A crusher for producing fine silicon fragments for semiconductor or solar applications from silicon fragments suitable for semiconductor or solar applications, comprises a plurality of crushing tools, the crushing tools having a surface made from a hard, wear-resistant material, wherein
7202059 Fusion proteins capable of being secreted into a fermentation medium April 10, 2007
Fusion protein including a fusion part and a protein of interest, the combination of the two proteins leading to the fusion protein being secreted into a supernatant of a bacterial host with the protein of interest being present in its correct three-dimensional structure. Nucleic aci
7129309 Use of rhodium-crosslinking silicone elastomers for producing baking molds October 31, 2006
Shaped bodies comprise addition-crosslinked silicone elastomers crosslinked in the presence of at least one rhodium or iridium catalyst or mixtures of both catalyst types. The shaped bodies may be made transparent and colorless and are well suited for use as food and baking molds in
7119159 Self-adhesive addition-crosslinking silicon compositions October 10, 2006
Addition-crosslinking silicone compositions comprise (A) diorganopolysiloxanes R.sup.1.sub.aR.sup.2.sub.bSiO.sub.(4-a-b)/2 wherein R.sup.1 is hydroxyl or a monovalent C.sub.1-20 hydrocarbon radical free of aliphatic unsaturation, R.sup.2 is a monovalent aliphatically unsaturated C.
7105581 Antifoam formulations September 12, 2006
An antifoam formulations comprise (A) antifoam agent based on siloxanes and (B) branched polyether/polysiloxane copolymers comprising structural units of the formula Y[--C.sub.nH.sub.2n--(R.sub.2SiO).sub.m--A.sub.p--R.sub.2Si--G].sub.x (I) in which Y is a multivalent, optionally he
7094858 Process for the preparation of crosslinkable materials based on organosilicon compounds August 22, 2006
A Process for the preparation of materials crosslinkable with elimination of alcohols to give elastomers, wherein (A) an organopolysiloxane having at least two hydroxyl groups, (B) trialkoxysilanes and/or the partial hydrolysis products thereof in an amount of at least 0.7 part by
7081275 Silicon resin-based binding agents and their use in methods for producing mineral fiber based sh July 25, 2006
Aqueous organopolysiloxane compositions containing a dispersed solid organopolysiloxane resin bearing both alkoxy and hydroxy radicals, a condensation catalyst, and a wetting agent are suitable for use as binders for the preparation of structures based on mineral fibers.
7074950 Process for preparing organosilicon compounds July 11, 2006
The present invention relates to a process for adding Si-bonded hydrogen to aliphatically unsaturated compounds containing carbon-carbon multiple bonds and ether oxygen atoms in the presence of carbinol groups, wherein the reaction mixture comprises, as a further component, at least one
7071278 Cross-linkable materials based on organosilicon compounds July 4, 2006
Crosslinkable compositions employing organosilicon compounds having at least two hydrolyzable groups, optionally a crosslinker, and optionally a compound containing basic nitrogen, include a crosslinking catalyst which is a reaction product of a phosphorus compound, a sulfur compound, an
7053141 Organosilicone compounds having alkynol groups and the use thereof in crosslinkable materials May 30, 2006
Organosilicon compounds having alkynol groups and containing units of the formula ##STR00001## where R.sup.3 and R.sup.2 are optionally substituted hydrocarbon radicals, R.sup.4 are divalent organic radicals, and X is a linking group are useful in addition crosslinkable compositions
7041199 Process and device for hydrolytically obtaining a carboxylic acid alcohol from the corresponding May 9, 2006
A process and a device for the catalytic hydrolysis of a carboxylate, e.g., methyl acetate, ethyl acetate, i- or n-propyl acetate, i- or n-butyl acetate, allyl acetate and methyl formate, into the corresponding carboxylic acid and alcohol, by a combination of a pre-reactor and a reac
7029632 Radiation-heated fluidized-bed reactor April 18, 2006
A radiation-heated fluidized-bed reactor and a process for producing high-purity polycrystalline silicon by using this reactor are provided. In this reactor, a heater device (14) is a radiation source for thermal radiation which is arranged outside the inner reactor tube and as a cyl
7026427 Process for the preparation of organopolysiloxane resin April 11, 2006
A process for the preparation of organopolysiloxane resins, wherein a silane R.sub.3SiOR.sup.1 (I) or a hydrolyzate thereof, and a silane Si(OR.sup.2).sub.4 (II) or a partial hydrolyzate thereof, are reacted with acidified water and a portion of alcohol distilled off; the mixture
7022802 Silicone oil pastes April 4, 2006
Pastes comprise (1) siloxane copolymers which contain at least two groups of the general formula --C(O)NR.sup.1-- in covalently bonded form on average per molecule, where R.sup.1 is a hydrogen atom or an alkyl radical having 1 to 18 carbon atoms and (2) organic compound(s) with a mel
7015297 Method of increasing the elasticity of moisture-cured elastomers March 21, 2006
The invention provides a method of increasing the elasticity of moisture-cured elastomers, which comprises adding to alkoxy-cross linking one-component compositions comprising an alkoxysilane-terminated polymer (A) containing end groups of the formula (1) -A-Si(R).sub.a(CH.sub.3).sub
7014975 Solids surface-modified with amino groups March 21, 2006
Surface-modified solids bearing groups of the formula I SiR.sup.1.sub.2--R--NH.sub.2 (I), are prepared by reacting a solid having OH groups on a surface thereof with a cyclic silazane of the general formula II ##STR00001## where R is a divalent optionally substituted hydrocarbon r
7013620 Process and apparatus for the cost-effective packaging of polysilicon fragments March 21, 2006
A process for the cost-effective packaging of high purity polysilicon fragments has the polysilicon fragments being packaged automatically.
6998437 Preparation of polydiorganosiloxanes February 14, 2006
Polydiorganosiloxanes of the general formula R.sup.1--(OSiR.sub.2).sub.nOH (I) are prepared by reacting hexaorganocyclotrisiloxanes of the formula (R.sub.2SiO).sub.3 (II) with alcohols of the formula R.sup.1--OH (III) where each R is the same or different and is a monovalent, optional
6989191 Composite paper material with a pressure-sensitive adhesive coating finished to be resistant to January 24, 2006
The invention relates to a paper composite material with repulp-resistant adhesive coating, consisting of a paper carrier and an adhesive layer, characterized in that an intermediate coat of a dispersion polymer film containing a protective colloid and/or an emulsifying agent and with a
6984707 Crosslinkable compounds on the basis of organosilicon compounds January 10, 2006
One component vulcanizable silicone elastomer compositions contain at least one organosilicon compound bearing a plurality of hydrolyzable groups, optionally one or more crosslinkers bearing hydrolyzable groups, and a catalyst system comprising a tin compound bearing a sulphonic acid,
6979745 Process for preparing organosilicon compounds containing isocyanate groups December 27, 2005
Organosilicon compounds containing isocyanate groups and composed of units (Ia)are prepared by heating organosilicon compounds composed of units (Ib)where X is an SiC- or SiOC-bonded radical of the formula (IIa)g is 0 or 1, Z is a hydrocarbon spacer, R, R.sup.1 and R.sup.2 are optionally
6956096 Alkenyl-functional siloxane copolymers as antimisting additives for silicone coating composition October 18, 2005
Antimisting additives are used in crosslinkable silicone coating compositions for reducing aerosol formation, the antimisting additives being alkenyl-functional siloxane copolymers prepared by reacting a hydrocarbon containing at least three aliphatic double bonds, and with an organo
6951912 Masses which may be cross-linked to give elastomers with cleavage of alcohols from alkoxysilyl e October 4, 2005
Storage stability of one-component elastomers prepared from constituents having alkoxysilyl end groups is enhanced by employing bin compounds having a coordination number of 5 or 6 in which tin is coordinately bonded to a P.dbd.O group as at least one condensation catalyst.
6946030 Method for the production of a silica glass crucible with crystalline regions from a porous sili September 20, 2005
A silica glass crucible is produced by a) providing a porous amorphous silica glass green body, which is infiltrated with at least one substance that promotes crystallization of a silica glass crucible, b) drying the infiltrated silica glass green body, c) filling the green body wit
6939984 Process for preparing alkylchlorosilanes from the residues of direct synthesis of alkylchlorsila September 6, 2005
The invention provides a continuous process for preparing alkylchlorosilanes from the residues of direct synthesis of alkylchlorosilanes which comprise liquid constituents with a boiling point of at least 70.degree. C. at 1013 hPa and may also contain solids, with hydrogen chloride,
6936685 Method for isolating polyorganosiloxanes August 30, 2005
The invention relates to a method for isolating polyorganosiloxanes from an aqueous dispersion, wherein the polyorganosiloxanes are separated from water in a dissolved form with the aid of an extraction agent.
6911495 Process for the continuous preparation of two-component addition-crosslinking silicone compositi June 28, 2005
A process for the continuous preparation of addition-crosslinking silicone rubbers from a base composition containing at least one polyvinyl polysiloxane and at least 10% by weight, based on the liquid silicone rubber, of hydrophobicized filler, by removing the base composition from a
6878770 Aqueous organosilicon compositions April 12, 2005
The invention relates to novel aqueous compositions containing (1) organosilicon compounds comprising ammonium groups, containing at least one grouping consisting of two protonated nitrogen atoms per molecule, said atoms being linked by at least three carbon atoms, (2) acid anions, t
6869643 Self-priming architectural coatings March 22, 2005
The present invention relates to a process for the coating and water-repellent impregnation of mineral building materials, in which an architectural coating composition containing from 1 to 30 % by weight of C.sub.1 -C.sub.20 -alkyl-C.sub.1 -C.sub.6 -alkoxysilane as impregnating agen
6861447 Method for producing a coenzyme Q10/.gamma.-cyclodextrin complex March 1, 2005
A method is provided for producing a coenzyme Q10/.gamma.-cyclodextrin complex. This method provides that a mixture of .gamma.-cyclodextrin and coenzyme Q10 is treated by homogenisation and inputting energy.
6841694 Process for stabilizing unsaturated organosilicon compounds January 11, 2005
A process for stabilizing organosilicon compounds bearing unsaturated groups during their preparation, distillation, and/or storage, the organosilicon compounds bearing unsaturated groups having been obtained by reacting a haloalkylsilane with a salt of an unsaturated organic acid, by
6835419 Ammonio-containing organosilicon compounds December 28, 2004
The invention relates to novel organosilicon compounds comprising ammonium groups, said compounds being soluble in isopropanol or diethylene glycol monobutyl ether, and containing: a) at least one structural unit of general formula (I) wherein R.sup.2 represents a bivalent organic radica
6824881 Thermoplastic silicone block copolymers, the production thereof and the use of the same November 30, 2004
Thermoplastic silicon block copolymers containing (A) a hard segment polymer constituent prepared from styrene, methylmethacrylate, butylacrylate, acrylonitrile, vinyl monomers, or mixtures therefore, and (B) a soft segment polymer constituent of general formula (I) G-[(SiR.sub.2 O).
6815554 Process for preparing unsaturated organosilicon compounds November 9, 2004
A process for preparing unsaturated organosilanes containing organic carbonyloxy groups and having the formula
6815069 Textile structures comprising organopolysiloxane polyurea-polyurethane block copolymer November 9, 2004
Textile structures comprise fibers and an organopolysiloxane-polyurea-polyurethane block copolymer (A) of the general formula (1) ##STR1##as a coating material or finishing material for fibers where R is a hydrocarbyl group, X is an alkylene group, A and Z are oxygen or primary o
6800413 Low-silanol silica October 5, 2004
A silylated silica having an SiOH density per nm.sup.2 of less than 0.6, based on the BET-method surface area (DIN 66131 and 66132), is prepared by silylating silica in a process where loading, reacting, and purifying are performed in separate steps.
6790533 Self-adhesive thermally crosslinkable 1-component silicone compositions September 14, 2004
The invention relates to self-adhesive thermally crosslinkable 1-component silicone compositions which contain the components defined in claim 1 (A) diorganopolysiloxane, (B) filler which is selected from filler (B1) having a specific surface area of at least 50 m.sup.2 /g, aluminum hy
6783442 Nickel-diamond-coated saw wire with improved anchoring of the diamond particles August 31, 2004
The invention relates to a saw wire consisting essentially of a steel wire, an intermediate layer and a metallic binding phase into which diamond grains with an average diameter of 10 to 50 micrometers are inserted, characterized in that the metallic binding phase has a hardness of betwe
6777076 Graphite-coated shaped body made of sintered silicon carbide August 17, 2004
Shaped body based on polycrystalline SiC and having a density of greater than 90% of its theoretical density and an adherent graphite layer on its surface, wherein the graphite layer is crystalline, has a thickness of 0.1-100 .mu.m and has been produced by thermal surface decomposition o
6773618 Microporous thermal insulation molding containing electric-arc silica August 10, 2004
A thermal insulation molding having a density of 150-500 kg/m.sup.3, includes a thermal insulation material, containing 5%-75% by weight of pyrogenic silica (HDK), 5%-50% by weight of electric-arc silica, 5%-50% by weight of opacifier, wherein the electric-arc silica has a bulk density o
6770700 Crosslinkable compositions based on organosilicon compounds August 3, 2004
Crosslinkable compositions based on organosilicon compounds and moldings produced therefrom further contain glass flakes having a thickness of from 0.1 to 20 .mu.m, a length of from 1 to 5000 .mu.m and a width of from 1 to 5000 .mu.m, and a width or length to thickness ratio in the range
6764717 Alkenyl-functional siloxane copolymers as antimisting additives for silicone coating composition July 20, 2004
Antimisting additives are used in crosslinkable silicone coating compositions for reducing aerosol formation, the antimisting additives being alkenyl-functional siloxane copolymers prepared by reacting a hydrocarbon containing at least three aliphatic double bonds, and with an organo
6759094 Branched organosiloxane (co)polymers and their use as antimisting additives for silicone coating July 6, 2004
Branched organosiloxane (co)polymers comprising the structural elements of the formulawhere Y is a tri- to decavalent, optionally heteroatom-containing hydrocarbon radical, R is a monovalent, optionally halogenated hydrocarbon radical, A is a radical of the formula --R.sub.2 Si--R.sup.
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