Carbon To Carbon Unsaturation Reduced By Addition Of A Silicon Hydride Patents (Class 556/479)
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Patent number: 6472549Abstract: Propyl silanes functionalized in 3-position are produced by catalytically reacting allyl compounds of the formula H2C═CH—CH2X with silanes of the formula R2R3R4SiH and using a 3- to 100-fold excess of silane.Type: GrantFiled: February 1, 2002Date of Patent: October 29, 2002Assignee: Degussa AGInventors: Christoph Batz-Sohn, Peter Panster, Rudolf Michel, Michael Albert, Ivo Vryens
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Patent number: 6437163Abstract: The invention concerns a method for preparing high purity polyorganosiloxanes with arylalkyl function(s) by: hydrosilylation of a hydrogenopolyorganosiloxane, reagent (SiH), and an aromatic monovinyl compound, reagent (Vi), with simultaneous introduction of reagent (SiH) and reagent (Vi), in a reaction medium containing an inert solvent and a hydrosilylation catalyst; then elimination of the solvent, the possible residual reagents (SiH) and (Vi), and/or hydrogenation, the hydrogenation process being optionally followed by an elimination process (or another elimination process) of the products other than polyorganosiloxanes with arylalkyl function(s). The resulting silicones with arylalkyl function(s) can be used as emollients and/or carriers in cosmetic compositions, or as solubilizing agents and emollients in perfume compositions.Type: GrantFiled: February 23, 2001Date of Patent: August 20, 2002Assignee: Rhodia ChimieInventors: Paul Branlard, Gérard Mignani, Philippe Olier, Claudie Willemin
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Patent number: 6437071Abstract: The present invention has its object to provide a curable composition giving cured products improved in residual tack (reduced in stickiness), with the physical properties insuring those tensile characteristics and rubber elasticity required of sealing compositions for general architectural use being retained. The present invention provides a curable composition which comprises (I) 100 parts by weight of a reactive silicon group-containing polyether oligomer with the percentage of the number of reactive silicon groups to the number of molecular chain terminals as determined by 1H-NMR analysis being not less than 85% and (II) 1 to 500 parts by weight of a plasticizer.Type: GrantFiled: March 20, 2000Date of Patent: August 20, 2002Assignee: Kaneka CorporationInventors: Hidetoshi Odaka, Yuka Kanamori, Hiroshi Ito, Hideharu Jyono, Hiroshi Iwakiri, Fumio Kawakubo
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Patent number: 6420504Abstract: Radical-polymerizable organic group-containing branched siloxane-silalkylene copolymer represented by the general formula: {in the formula, Y is a radical-polymerizable organic group, R1 is 1-10 carbon alkyl or aryl, and X1 is a silyl-alkyl group represented by the following formula in the case when i=1: (in the formula, R1 is the same as aforesaid, R2 is 2-10 carbon alkylene, R3 is 1-10 carbon alkyl, and Xi+1 is a group selected from the group comprising a hydrogen atom, 1-10 carbon alkyl, aryl and the aforesaid silylalkyl group, i is an integer from 1 to 10, which indicates the generation number of the said silylalkyl group and ai is an integer from 0 to 3)}, silicone-containing organic polymer made by polymerizing the said copolymer and method for production thereof.Type: GrantFiled: August 9, 2000Date of Patent: July 16, 2002Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Makoto Yoshitake, Haruhiko Furukawa, Yoshitsugu Morita
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Publication number: 20020091281Abstract: The present invention is related to a process for telomerizing a conjugated diene which comprises reacting said conjugated diene with a compound containing active hydrogen in the presence of a catalyst system comprising at least one transition metal compound, at least one phosphorus-containing compound, and at least one salt which forms a liquid under the conditions of the telomerization process.Type: ApplicationFiled: October 22, 2001Publication date: July 11, 2002Applicant: Celanese Chemicals Europe GmbHInventors: Yves Chauvin, Lionel Magna, Gerald Peter Niccolai, Jean-Marie Basset
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Patent number: 6414176Abstract: In the process for the preparation of vinylsilanes by reacting acetylenic hydrocarbons with silanes which have at least one silicon-bonded hydrogen atom in the liquid phase in the presence of a catalyst, the silane is added to the liquid phase. In particular, the reaction is carried out at superatmospheric pressure, and the spent acetylenic hydrocarbon is replenished during the reaction while maintaining a pressure which is constant during the entire reaction.Type: GrantFiled: July 11, 2001Date of Patent: July 2, 2002Assignee: BASF AktiengesellschaftInventors: Thomas Preiss, Holger Friedrich, Jochem Henkelmann
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Patent number: 6410772Abstract: A continuous method for performing a hydrosilylation reaction comprising effecting a hydrosilylation reaction between a liquid organosilicon compound (A) having in each molecule at least one silicon-bonded hydrogen atom and a liquid organosilicon compound (B) having in each molecule at least one aliphatic unsaturated bond in the presence of a platinum catalyst (C) continuously in a tubular reactor equipped with a stirring and plug-flow maintaining apparatus located within the reactor.Type: GrantFiled: February 9, 2001Date of Patent: June 25, 2002Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Toshio Okuyama, Naoya Matsui, Takao Takemasa
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Patent number: 6402961Abstract: A process for preparing epoxysilanes by reacting a hydrogensilane with an allyl glycidyl ether in the presence of a catalyst and working up the crude product obtained, where the catalyst is removed from the crude product and the crude product is subsequently distilled.Type: GrantFiled: July 21, 2000Date of Patent: June 11, 2002Assignee: Degussa AGInventors: Stefan Bade, Uwe Schoen, Hartwig Rauleder
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Patent number: 6388119Abstract: The invention relates to a process for preparing a silane of the formula I R6R5CH—R4CH—SiR1R2R3 (I), which comprises reacting a silane of the formula II HSiR1R2R3 (II), with an alkene of the formula III R6R5CH═CHR4 (III), in the presence of an iridium compound of the formula IV as catalyst [(diene)IrCl]2 (IV), and free diene as cocatalyst, where R1, R2, R3, R4, R5, R6, R and diene are as defined in claim 1.Type: GrantFiled: September 27, 2001Date of Patent: May 14, 2002Assignee: Consortium fur elektrochemische Industrie GmbHInventors: Andreas Bauer, Oliver Schäfer, Markus Kriegbaum, Leonhard Brader, Bernd Pachaly, Volker Frey
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Publication number: 20020052520Abstract: The invention relates to a process for preparing a silane of the formula IType: ApplicationFiled: September 27, 2001Publication date: May 2, 2002Inventors: Andreas Bauer, Oliver Schafer, Markus Kriegbaum, Leonhard Brader, Bernd Pachaly, Volker Frey
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Patent number: 6376635Abstract: An oligosiloxane having the formula (R1O)aSi(OSiR22R3)4−a wherein R1 is alkyl; each R2 is independently selected from C1 to C10 monovalent hydrocarbyl free of aliphatic unsaturation; R3 is hydrocarbly free of aliphatic unsaturation and having at least 11 carbon atoms; and a is 1, 2, or 3; and a method of preparing an alkoxy-functional oligosiloxane.Type: GrantFiled: November 1, 2000Date of Patent: April 23, 2002Assignee: Dow Corning Toray Silicon Co., Ltd.Inventors: Masaaki Amako, Tadashi Okawa, Hiroji Enami, Masayuki Onishi
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Patent number: 6359161Abstract: A halopropyldimethylchlorosilane is prepared by reacting dimethylchlorosilane with an allyl halide in the presence of an iridium catalyst. The reaction is effected in the presence of an internal olefin compound, typically 1,5-cyclooctadiene. The internal olefin compound suppresses deactivation of the iridium catalyst during reaction. Using a smaller amount of the iridium catalyst, the process produces the halopropyldimethylchlorosilane in high yields.Type: GrantFiled: May 11, 2001Date of Patent: March 19, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yoichi Tonomura, Tohru Kubota, Mikio Endo
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Patent number: 6358574Abstract: Crosslinkable LC organosiloxanes exhibiting excellent UV stability, contain units of the general formula 1 [RbMescSiO(4−b−c)/2] (1) in which R are C1-C4-alkyl radicals, Mes is at least one group of the general formula 2 and, if desired, of the general formula 3, b has the value 0, 1 or 2, and c has the value 0, 1, 2, 3 or 4, with the proviso that the sum of the values of b and c is a maximum of 4, where the Mes groups of the general formulae 2 and 3 exhibit the following structure: —(CH2)p—(O)q—A—[B—A]r—E—F—VN (2) —(CH2)m—(O)n—(A)t—Q—X (3) in which A, B, Q, X, E, F, VN, m, p, n, q, t and r have the meanings given in claim 1, with the proviso that the LC organosiloxanes do not constitute a phenyl ester derivative of an aliphatic, aromatic or heteroaromatic carboxylic acids.Type: GrantFiled: December 6, 1999Date of Patent: March 19, 2002Assignee: Consortium fur Elektrochemische Industrie GmbHInventors: Norman Häberle, Jürgen Küpfer, Horst Leigeber
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Patent number: 6350824Abstract: A continuous process for the polymer-analogous reaction of polymers bearing functional groups with reactive compounds, wherein in a first step, a mixture is prepared from the polymers bearing functional groups and the reactive compounds, and in a second step, the mixture is conducted continuously through a reaction zone and brought to reaction there.Type: GrantFiled: April 13, 1999Date of Patent: February 26, 2002Assignee: Wacker-Chemie GmbHInventors: Frank Baumann, Otto Rothenaicher, Bernward Deubzer, Monika Heindl
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Patent number: 6340734Abstract: Novel silsesquioxane polymers are formed by methods which avoid the use of BBr3. The novel silsesquioxane polymers are especially useful in negative photoresist compositions and photolithographic processes. Alternatively, improved silsesquioxane polymer-containing negative photoresist compositions are obtained by using a polymer component containing a blend of silsesquioxane polymer and non-silsesquioxane polymer. The photoresist compositions provide improved dissolution characteristics enabling the use of 0.26N TMAH developer. The photoresist compositions also provide improved thermal characteristics enabling use of higher processing temperatures. The photoresist compositions are especially useful in a multilayer photolithographic processes and are capable of producing high resolution.Type: GrantFiled: December 7, 1999Date of Patent: January 22, 2002Assignee: International Business Machines CorporationInventors: Qinghuang Lin, Marie Angelopoulos, Ahmad D. Katnani, Ratnam Sooriyakumaran
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Patent number: 6334935Abstract: A (meth)acryloxy-bearing alkoxysilane is isolated and purified to a high purity by distilling a reaction solution containing the (meth)acryloxy-bearing alkoxysilane in a thin-layer distillation device at a temperature of 90-160° C. and a vacuum of 1-15 mmHg. The resulting alkoxysilane product does not give rise to the quality problem that the product will gradually whiten during storage owing to contact with air. The occurrence of self-polymerization of the alkoxysilane is restrained.Type: GrantFiled: June 18, 1999Date of Patent: January 1, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Katsuhiro Uehara, Mikio Endo, Tohru Kubota, Satoshi Uchida, Kanji Murofushi
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Patent number: 6335414Abstract: An organopolysiloxane composition comprising (A) an organopolysiloxane, (B) a silane compound having at least two hydrolyzable groups or a partial hydrolyzate thereof, and (C) the addition reaction product between a vinyl group-bearing bisphenol A skeleton compound and an organoxy group-bearing silicon compound is curable at room temperature to a variety of resins including PBT, HIPS and acrylic resins.Type: GrantFiled: March 10, 2000Date of Patent: January 1, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takafumi Sakamoto, Mitsuhiro Iwata, Hironao Fujiki
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Publication number: 20010050217Abstract: A (meth)acryloxy-bearing alkoxysilane is isolated and purified to a high purity by distilling a reaction solution containing the (meth)acryloxy-bearing alkoxysilane in a thin-layer distillation device at a temperature of 90-160° C. and a vacuum of 1-15 mmHg. The resulting alkoxysilane product does not give rise to the quality problem that the product will gradually whiten during storage owing to contact with air. The occurrence of self-polymerization of the alkoxysilane is restrained.Type: ApplicationFiled: June 18, 1999Publication date: December 13, 2001Inventors: KATSUHIRO UEHARA, MIKIO ENDO, TOHRU KUBOTA, SATOSHI UCHIDA, KANJI MUROFUSHI
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Patent number: 6326506Abstract: A method of preparing an organosilicon compound comprising effecting a hydrosilylation reaction between (a) unsaturated compounds with terminal unsaturated groups and (b) silane compounds described by formula HSiR0mW3−m, where W is selected from the group consisting of C1 to C6 alkoxy groups, C6 to C10 aryloxy groups, and halogen atoms, R0 is an organic group, and m is 0, 1, or 2 in the presence of (c) a platinum catalyst and (d) an auxiliary catalyst selected from the group consisting of (1) silyl esters of acids derived from oxo acids of sulfur; (2) amide compounds having N—Si bonds; (3) urea compounds; (4) silyl esters of carbamic acid; (5) phosphoric acid compounds; and (6) cyclic compounds selected from the group consisting of (i) hydroxypyridine compounds, (ii) 8-hydroxyquinoline compounds, (iii) oxazolidinone compounds, and (iv) N-hydroxysuccinimide compounds.Type: GrantFiled: June 11, 2001Date of Patent: December 4, 2001Assignee: Dow Corning Asia, Ltd.Inventors: Mamoru Tachikawa, Kasumi Takei
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Patent number: 6310146Abstract: A cured silsesquioxane resin and method for its preparation are disclosed. By using a silyl-terminated hydrocarbon in the hydrosilylation reaction curable composition used to prepare the cured silsesquioxane resin, the cured silsesquioxane resin has improved strength and toughness without significant loss of modulus. A typical silyl-terminated hydrocarbon useful in this invention is silphenylene.Type: GrantFiled: July 1, 1999Date of Patent: October 30, 2001Assignees: Dow Corning Corporation, Massachusetts Institute of TechnologyInventors: Dimitris Elias Katsoulis, Zhongtao Li, Frederick Jerome McGarry, Bihn Thanh Nguyen, Bizhong Zhu
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Patent number: 6307082Abstract: The invention relates to a process for the transition metal-catalyzed addition of SiH-containing poly-siloxanes onto olefinic compounds, wherein the catalyst used is a combination of at least two compounds of platinum metals, and also to a corresponding catalyst system.Type: GrantFiled: February 22, 2000Date of Patent: October 23, 2001Assignee: Goldschmidt AGInventors: Klaus Dieter Klein, Wilfried Knott, Dagmar Windbiel
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Patent number: 6303728Abstract: The present invention has its object to provide an effective method of accelerating a hydrosilylation reaction. This invention is related to a hydrosilylation reaction method which comprises carrying out the hydrosilylation reaction between a silicon compound (A) represented by the following general formula (1) and an alkenyl group-containing compound (B) in the presence of a Group VIII metal-containing catalyst (C) and a sulfur compound (D); RaXbHcSi (1).Type: GrantFiled: March 3, 2000Date of Patent: October 16, 2001Assignee: Kaneka CorporationInventors: Shigeru Hagimori, Koji Tsuneishi, Yoshimichi Yamanaka, Syun Wachi, Kazuya Yonezawa
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Method for manufacturing silicon compound having substituents bonded to silicon atoms via Si-C bonds
Patent number: 6297340Abstract: A hydrosilylation reaction method that achieves high catalytic activity and stability, and improves the positional selectivity of the hydrosilylation reaction product. The method comprises reacting an unsaturated compound selected from the group consisting of aromatic vinyl compounds and allyl halides with a silicon compound having hydrosilyl groups described by formula HSiRn(Z)3−n, where n=0, 1, or 2, R is a hydrocarbon group and Z is selected from the group consisting of a silamino group, siloxy group, and siloxanoxy group in the presence of a carboxylic acid compound, a silyl ester of a sulfonic acid, and a platinum catalyst.Type: GrantFiled: June 27, 2000Date of Patent: October 2, 2001Assignee: Dow Corning Asia, Ltd.Inventor: Mamoru Tachikawa -
Patent number: 6291623Abstract: This invention relates to new fluoroalkyl substituted cyclotrisiloxanes, their use in the preparation of new homopolymers, block copolymers and random copolymers, and to such new homopolymers, block copolymers and random copolymers.Type: GrantFiled: October 12, 1999Date of Patent: September 18, 2001Assignee: University of Southern CaliforniaInventors: Jyri Kalevi Paulasaari, William P. Weber
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Patent number: 6287650Abstract: R1—(A1)m—Z1—A2—(Z2—A3)n—W—SiXaYbZc I in which R1, A1, A2, A3, Z1, R1, Z2, W, X, Y, Z, m, n, a, b and c are as defined below, can be used to produce homeotropic alignment of liquid-crystalline phases on surfaces.Type: GrantFiled: November 5, 1998Date of Patent: September 11, 2001Assignee: Merck Patent Gesellschaft mitInventors: Detlef Pauluth, Matthias Bremer, Edgar Böhm, Akio Osabe, Gerhard Herget, Wolfgang Hechler
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Patent number: 6271280Abstract: Intermediate compositions comprising ethynylorgano polyorganosiloxanes are prepared by hydrosilylation of an olefinic hydroxy compound followed by reaction with a propargyl halide, or by hydrosilylation of a diethynyl compound. The intermediate compositions may be oxidatively coupled to form poly(conjugated diacetylenic)polyorganosiloxanes. The latter may be cured thermally or by radiation to form cured compositions useful as release coatings or conformal coatings.Type: GrantFiled: April 19, 2000Date of Patent: August 7, 2001Assignee: General Electric CompanyInventors: Sylvie Louise Boileau, Anna Elzbieta Kowalewska, Laurent Bouteiller, Matthew David Butts, Slawomir Rubinsztajn
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Patent number: 6258914Abstract: Alkoxy silane oligomers which have a non-hydrolyzable carbon bridged bond to another silane functionality are taught herein, as well as their manufacture and utility.Type: GrantFiled: October 15, 1999Date of Patent: July 10, 2001Assignee: C. K. Witco CorporationInventors: Shiu-Chin Huang Su, Herbert E. Petty, Fredrick D. Osterholtz
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Patent number: 6255516Abstract: Fluoroalkyl organosilicon compounds are prepared by reacting fluoroolefins with organosilicon compounds that contain at least one H-Si group, in the presence of a Pt(0) complex catalyst. Further, fluoroalkylalkoxy organosilicon compounds are prepared by esterifying fluoroalkyl organosilicon compounds. The process proceeds uniformly under mild conditions with high yields and selectivities.Type: GrantFiled: December 9, 1998Date of Patent: July 3, 2001Assignee: Huels AktiengesellschaftInventors: Peter Jenkner, Albert-Johannes Frings, Michael Horn, Jaroslaw Monkiewicz, Burkhard Standke
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Patent number: 6252030Abstract: A method for manufacturing an organic solvent-soluble hydrogenated octasilsesquioxane-vinyl group-containing compound copolymer comprising reacting 1 mol of (A) a hydrogenated octasilsesquioxane described by formula I with 0.2 to less than 3 mol of (B) a divinyl group-containing compound described by formula (2) CH2═CH—L—CH═CH2 Formula 2 where L is selected from the group consisting of (a) a divalent hydrocarbon group comprising 3 to 10 carbon atoms and (b) —(SiR2O)m—SiR2—, where each R is independently selected from the group consisting of alkyls comprising 1 to 6 carbon atoms and aryls comprising 6 to 9 carbon atoms and 1≦m≦10; in the presence of a hydrosilylation catalyst.Type: GrantFiled: March 9, 2000Date of Patent: June 26, 2001Assignee: Dow Corning Asia, Ltd.Inventors: Gregg Alan Zank, Michitaka Suto
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Patent number: 6245925Abstract: By reacting 4-vinyl-1-cyclohexene with a hydrogenchlorosilane compound in the presence of a platinum catalyst to give a reaction solution containing a monosilyl compound, removing the residual 4-vinyl-1-cyclohexene and isomers thereof from the reaction solution, and reacting the monosilyl compound again with the hydrogenchlorosilane compound, an organic silicon compound in which the two double bonds in 4-vinyl-1-cyclohexene have been hydrosilylated is produced in high yields.Type: GrantFiled: July 27, 2000Date of Patent: June 12, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yoichi Tonomura, Tohru Kubota, Mikio Endo
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Patent number: 6242630Abstract: A process for the continuous preparation of 3-halopropylorganosilanes of the general structure RbH3-a-bXaSiCH2CH2CH2Y (III), where: R is CH3, C2H5, C3H7, OCH3, OC2H5 or OC3H7, X is F, Cl, Br or I, Y is F, Cl, Br or I, and a and b are each one of the numbers 0, 1, 2 or 3 and the sum a+b is 1, 2 or 3, comprising reacting, as starting materials, an allyl halide with a silane carrying at least one H atom, wherein the starting materials are present in stoichiometric amounts or one of the starting materials is present in substoichiometric amounts, wherein the reaction carried out is a partial reaction of from 10% to 80%, on a molar basis, of the starting materials, based on either material, when both are present in stoichiometric amounts, or based on the substoichiometric material.Type: GrantFiled: August 11, 1997Date of Patent: June 5, 2001Assignee: Huels AktiengesellschaftInventors: Stefan Bade, Uwe Schoen, John Burkhard, Franz-Michael Bollenrath, Norbert Hofmann, Hermann-Josef Korte, Hartwig Rauleder, Uwe Tanger
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Patent number: 6191220Abstract: A method for making a hydrocarbon oxysilyl functional polymer, which is important as a modified silicone or silicone-modified polymer, by a hydrosilylation reaction between a hydride (hydrocarbonoxy)silane compound having SiH functional groups and a polymer having olefinic or acetylenic unsaturated groups in the presence of a carboxylic acid and a catalytic amount of platinum or a platinum compound.Type: GrantFiled: December 21, 1998Date of Patent: February 20, 2001Assignee: Dow Corning Asia, Ltd.Inventors: Kasumi Takeuchi Kasumi Takei, Mamoru Tachikawa
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Patent number: 6191297Abstract: A process for the preparation of organosilanes functionalized in the 3-position, by the reaction of suitable allyl compounds with hydrogen silanes, using platinum catalysts having one or more sulfur-containing ligands.Type: GrantFiled: June 10, 1999Date of Patent: February 20, 2001Assignee: Degussa-Huls AGInventors: Christoph Batz-Sohn, Ralf Karch, Steffen Seebald, Matthias Prinz
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Patent number: 6177585Abstract: A hydrosilation processing a silicon hydride with an unsaturated reactant in the presence of a supported bimetallic catalyst comprising an active hydrosilating metal such as platinum in elemental or compound form, and a surface segregating metal such as copper in elemental or compound form on a support.Type: GrantFiled: May 19, 2000Date of Patent: January 23, 2001Assignee: Dow Corning CorporationInventors: Wei Chen, Paul Charles Dinh, Ming-Shin Tzou
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Patent number: 6175031Abstract: A method for synthesizing silicon compounds that contain a substituent bonded to silicon through a Si—C bond comprising a platinum-catalyzed hydrosilylation reaction between SiH-substituted silicon compounds and unsaturated group-functional organic compounds or unsaturated group-functional organosilicon compounds and exhibits a high catalyst activity and stability and affords a high positional selectivity in the hydrosilylation reaction product.Type: GrantFiled: March 7, 2000Date of Patent: January 16, 2001Assignee: Dow Corning Asia, Ltd.Inventor: Mamoru Tachikawa
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Patent number: 6169196Abstract: A process for the preparation of di- and trialkylsilanes of the general formula (I) RaR1bSiXc (I), in which mono- or dialkylsilanes of the general formula (II) R1bSiHaXc (II) are reacted with alkenes A which have at least 3 carbon atoms and are optionally substituted by fluorine, chlorine or bromine atoms or cyano groups, in the presence of a transition metal catalyst and a trihalogenosilane of the general formula (III) R2SiY3 (III) as an activator, wherein, in the above general formulae (I) to (III), R is a branched or cyclic hydrocarbon radical having at least 3 carbon atoms, optionally substituted by fluorine, chlorine, or bromine, or cyano groups, R1 is an alkyl radical optionally substituted by fluorine, chlorine, or bromine, or cyano groups, R2 is a hydrogen atom, or an alkyl radical optionally substituted by fluorine, chlorine, or bromine, or cyano groups, X is fluorine, chlorine, or bromine, or an alkoxy radical having 1 to 18 carbon atoms optionally substiType: GrantFiled: January 28, 2000Date of Patent: January 2, 2001Assignee: Wacker-Chemie GmbHInventors: Gilbert Geisberger, Tassilo Lindner, Rudolf Reitmeier
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Patent number: 6166238Abstract: A method is provided for preparing high purity organofunctional alkyldialkoxysilanes by reacting hydroalkyldialkoxysilanes with olefins wherein formation of undesired close-boiling by-products by an alkyl/alkoxy group exchange reaction is minimized.Type: GrantFiled: January 12, 2000Date of Patent: December 26, 2000Assignee: Crompton CorporationInventors: Michelle A. Filipkowski, Petty E. Herbert, Curtis L. Schilling, Jr., Mark D. Westmeyer
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Patent number: 6153782Abstract: A method for the production of organosilanes functionalized in 3-position by reacting suitable allyl compounds with hydrogen silanes in the presence of a multielement catalyst containing platinum and at least one other element.Type: GrantFiled: December 10, 1999Date of Patent: November 28, 2000Assignee: Degussa-Huls AGInventors: Thomas Krauter, Steffen Seebald, Christoph Batz-Sohn, Ralf Karch, Matthias Prinz, Hermanus Gerhardus Jozef Lansink Rotgerink
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Patent number: 6118014Abstract: New compositions of matter are organofunctional cocyclic siloxanes of the formula ##STR1## where R1 to R3 are alkyl groups of 1-6 carbon atoms; a and b have a value of 1-10; and R4 is an aminoalkyl group or a carboxyalkyl group. Some representative R4 groups are --CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2, --CH.sub.2 CH.sub.2 CH.sub.2 NHCH.sub.2 CH.sub.2 NH.sub.2, --CH.sub.2 CH(CH.sub.3)CH.sub.2 NHCH.sub.2 CH.sub.2 NH.sub.2, and --(CH.sub.2).sub.10 COOH.Type: GrantFiled: July 16, 1999Date of Patent: September 12, 2000Assignee: Dow Corning CorporationInventors: Daniel Joseph Halloran, Brett Lee Zimmerman
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Patent number: 6111126Abstract: A method for synthesizing organosilicon compounds that contain a functional group bonded to silicon across the Si--C bond. The method comprises reacting an unsaturated group-functional organic compound or unsaturated group-functional organosilicon compound with a hydro(hydrocarbonoxy)silane compound, where the reaction is carried out in the presence of a platinum catalyst.Type: GrantFiled: December 1, 1999Date of Patent: August 29, 2000Assignee: Dow Corning Asia, Ltd.Inventors: Mamoru Tachikawa, Kasumi Takei
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Patent number: 6087523Abstract: A hydrosilation process comprising contacting a silicon hydride with an unsaturated reactant in the presence of a platinum catalyst supported on porous aluminum oxide having an acidity of pH 2 to 7. The process is particularly useful for the hydrosilation of unsaturated reactants where the unsaturation is in the internal portion of the reactant's structure, for example, as in cyclopentene and cyclohexene.Type: GrantFiled: July 23, 1999Date of Patent: July 11, 2000Assignee: Dow Corning CorporationInventors: Howard Marvin Bank, Paul Charles Dinh, Ming-Shin Tzou
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Patent number: 6054602Abstract: A process comprising the hydrosilation of an aromatic vinyl compound by a hydridochlorosilane compound in the present of platinum or platinum compound and a carboxylic acid. The process favors the formation of the .beta.-adduct of the hydrosilation reaction.Type: GrantFiled: June 29, 1999Date of Patent: April 25, 2000Assignee: Dow Corning Asia, Ltd.Inventor: Mamoru Tachikawa
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Patent number: 6051673Abstract: To provide a high-purity platinum complex catalyst composition that has an excellent storage stability, is easy to handle, and has a high catalytic activity. Also, to provide a process for the preparation of this platinum complex catalyst composition and provide a microparticulate thermoplastic resin catalyst composition.Type: GrantFiled: July 24, 1998Date of Patent: April 18, 2000Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Toshio Surayama, Masahiko Suzuki
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Patent number: 6048994Abstract: A method for hydrosilylating a vinyl-substituted aromatic compound comprising reacting a hydrido (hydrocarbonoxy)silane compound with the vinyl-substituted aromatic compound in the presence of a platinum or platinum compound catalyst and a carboxylic acid. The presence of the carboxylic acid increases the positional selectivity of addition in the hydrosilylation reaction and reduces the polymerization of vinyl groups even in the case of a high-temperature or long-term hydrosilylation reaction.Type: GrantFiled: December 23, 1998Date of Patent: April 11, 2000Assignee: Dow Corning Asia, Ltd.Inventors: Mamoru Tachikawa, Kasumi Takei
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Patent number: 6040411Abstract: Organosiloxanes having low transition temperatures comprise at least one group of the general formula 1--(CH.sub.2).sub.p --(O).sub.q --C.sub.6 H.sub.4 --Z--(COO).sub.s --[A--M].sub.t --E--(CH.sub.2 --CH.sub.2 --O).sub.a --VN (1)and, if desired, a group of the general formula 2--(CH.sub.2).sub.m --(O).sub.n --(A).sub.t --Q--X (2)whereVN is a group --COO--CH.dbd.CH.sub.2, --COO--C(CH.sub.3).dbd.CH.sub.2, --(CH.sub.2).sub.u --OCH.dbd.CH.sub.2, --CH.dbd.CH.sub.2 or an oxiranyl group and X, Z, A, M, Q, E, m, n, p, q, r, s, t, u, v and a are as defined herein.Type: GrantFiled: June 10, 1998Date of Patent: March 21, 2000Assignee: Consortium fur elektrochemische Industrie GmbHInventors: Norman Haberle, Franz-Heinrich Kreuzer, Jurgen Kupfer
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Patent number: 6015920Abstract: A process for hydrosilation reactions between olefins and hydrosilanes or hydrosiloxanes wherein a portion of the reactor output is recycled continuously to the reactor.Type: GrantFiled: September 11, 1998Date of Patent: January 18, 2000Assignee: CK Witco CorporationInventors: Curtis L. Schilling, Patrick James Burns, James Stephen Ritscher, Mark Paul Bowman, Thomas Edgeworth Childress, Michael Ray Powell, Eric Michael Graban
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Patent number: 5994573Abstract: A method for making a triarylamine having a hydrocarbon oxysilyl group SiOR', where R' is an organic group comprising 1 to 10 carbon atoms, which is important as a hole transfer substance in electronic applications, at a high yield and high position selectivity, comprising reacting a hydrido (hydrocarbonoxy)silane compound with a triarylamine having a vinyl group in the presence of platinum or platinum compound catalyst and a carboxylic acid compound.Type: GrantFiled: December 23, 1998Date of Patent: November 30, 1999Assignee: Dow Corning Asia, Ltd.Inventors: Mamoru Tachikawa, Kasumi Takei
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Patent number: 5986124Abstract: A method for preparing compounds containing (hydrocarbonoxy)silyl groups by reacting an unsaturated organic compound with a hydrido (hydrocarbonoxy)silane compounds by means of the catalytic action of platinum or a platinum compound in the presence of a carboxylic acid compound.Type: GrantFiled: December 21, 1998Date of Patent: November 16, 1999Assignee: Dow Corning Asia, Ltd.Inventors: Mamoru Tachikawa, Kasumi Takei
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Patent number: 5948339Abstract: Acetylenic maleates, fumarates and related derivative compounds are new compositions of matter having the formula:R.sub.1 O.sub.2 C--CH.dbd.CH--CO.sub.2 R.sub.2wherein R.sub.1 may be an organic moiety containing at least two carbon atoms triply bonded one to the other as:--C.tbd.C--and R.sub.2 may be hydrogen, an organic moiety, or R.sub.1 ; suitable for use as liquid injection molding inhibitors either singly or in combination with themselves or other liquid injection molding inhibitors when used for the process of liquid injection molding curable compositions enabling an increase in the size of articles manufactured therefrom, which new compositions of matter cure into the polymerizable or curable resins thereby creating new compositions of matter as cured resins from which said articles of manufacture are produced.Type: GrantFiled: November 19, 1997Date of Patent: September 7, 1999Assignee: General Electric CompanyInventors: Philip J. McDermott, Michael J. O'Brien, Edward M. Jeram
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Patent number: 5929269Abstract: The present invention relates to a process for preparing organosilicon compounds which contain at least one H.sub.2 C.dbd.CH--Si-group, by reacting an organosilicon compound which contains at least one H--Si-group with acetylene in a gas/liquid phase in the presence of at least one addition catalyst and extracting the organosilicon compound which contains at least one H.sub.2 C.dbd.H--Si-group from the reaction mixture, wherein an organosilicon compound which contains at least one H--Si-group, the acetylene, which is used in stoichiometric excess, and a substantially inert liquid phase is brought into very intimate contact in a jet tube loop reactor in the presence of a catalyst, and the organosilicon compound which contains at least one H.sub.2 C.dbd.CH--Si-group is subsequently extracted from the reaction mixture and the excess acetylene is recycled into the process.Type: GrantFiled: May 9, 1997Date of Patent: July 27, 1999Assignee: Huels AktiengesellschaftInventor: Frank Steding