Carbon To Carbon Unsaturation Reduced By Addition Of A Silicon Hydride Patents (Class 556/479)
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Publication number: 20110009565Abstract: Disclosed herein are metal-terpyridine complexes and their use in hydrosilylation reactions.Type: ApplicationFiled: July 8, 2010Publication date: January 13, 2011Inventors: Johannes G.P. Delis, Paul J. Chirik, Aaron M. Tondreau
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Publication number: 20100267979Abstract: 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.Type: ApplicationFiled: June 21, 2007Publication date: October 21, 2010Applicant: WACKER CHEMIE AGInventors: Andreas Bauer, Thomas Frey, Norbert Hofmann, Peter Schulz, Peter Wasserscheid
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Patent number: 7803893Abstract: Hydrosilylatable compositions employ ruthenium compounds with a ligand sphere comprising at least two independent carbon ?-bonded ligands, at least one of these ligands being selected from the group consisting of ?6-bonded arene ligands, ?6-bonded triene ligands, ?4-bonded 1,5-cyclooctadiene ligands and ?4-bonded 1,3,5-cyclooctatriene ligands as a hydrosilylation catalyst.Type: GrantFiled: March 28, 2007Date of Patent: September 28, 2010Assignee: Wacker Chemie AGInventors: Marco Hofmann, Hans-Juergen Eberle, Johann Weis
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Publication number: 20100234628Abstract: The present invention relates to a process for the preparation of indium acetate comprising the steps: (a) reacting an indium compound with an alkaline compound in a protic solvent to obtain an iridium containing precipitate, where the reaction is conducted in the presence of at least one component (i) selected from oxalic acid, a salt of oxalic acid, formic acid and a salt of formic acid, (b) reacting the precipitate in the presence of at least (i) one compound selected from oxalic acid, a salt of oxalic acid, formic acid and a salt of formic acid, and (ii) CH3CO2H and/or CH3(CO)O(CO)CH3 to give an iridium acetate containing solution. The invention also relates to indium acetate having a low halide content, to an indium containing precipitate and to uses of the iridium containing precipitate of the present invention and the iridium acetate of the present invention.Type: ApplicationFiled: May 24, 2006Publication date: September 16, 2010Inventors: Ralf Karch, Bernd Kayser, Andreas Rivas-Nass, Jurgen Bodo Widmer, Roland Winde, Eileen Worner
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Patent number: 7759406Abstract: The present invention provides a process for producing a polysilsesquioxane graft polymer (1) which includes applying ionizing radiation or heat to a mixture including a polysilsesquioxane compound (2) and a vinyl compound (3), a polysilsesquioxane compound including an iniferter group, and a pressure-sensitive adhesive and a pressure-sensitive adhesive sheet using the polymer. According to the present invention, a process for producing a polysilsesquioxane graft polymer which may be used as a pressure-sensitive adhesive exhibiting excellent heat resistance and cohesive force, and the like are provided. In the formula, A represents a linking group, R1 represents a hydrocarbon group which may have a substituent, R2 represents a hydrogen atom or the like, R3 represents a polar group or the like, R4 represents a hydrogen atom or the like, k1 to k3 represent arbitrary positive integers, 1 to n represent zero or an arbitrary positive integer (excluding the case where “m=n=0”), and Q represents an iniferter group.Type: GrantFiled: September 22, 2004Date of Patent: July 20, 2010Assignee: Lintec CorporationInventors: Taketo Kumon, Toshifumi Kageyama, Atsuko Kimura, Toshio Sugizaki, Osamu Moriya
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Patent number: 7741504Abstract: The present invention relates to a method for preparing an omega-haloalkyl dialkylhalosilane by means of a hydrosilylation reaction in the presence of a catalytically effective amount of a hydrosilylation catalyst containing a platinum group metal. The catalytic metal is recovered by (i) subjecting the distillation residue to controlled hydrolysis to release the gaseous H-Hal haloacid, and providing an aqueous medium containing the catalytic metal with a low hydrolysable halide content Si-Hal=2%, expressed by weight of Hal, then (2i) recovering the platinum group catalytic metal from said aqueous medium by means of one of the conventional techniques specific to catalyst manufacturers that do not use a solid adsorbent and operate in ordinary facilities that do not have to be acid-resistant.Type: GrantFiled: June 14, 2005Date of Patent: June 22, 2010Assignee: Rhodia ChimieInventor: Kamel Ramdani
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Patent number: 7658899Abstract: A production method of nano-sized silicon crystal particles comprising the step of allowing monosilane to be oxidized in a bulk liquid phase to form the nano-sized silicon crystal particles within the bulk liquid phase, wherein a liquid of the bulk liquid phase is an unsaturated hydrocarbon free from an oxidizing gas; and isolating the nano-sized silicon crystal particles from the bulk liquid phase.Type: GrantFiled: December 26, 2006Date of Patent: February 9, 2010Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Yasushi Nagata, Kazuya Tsukada, Hideki Hoshino
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Patent number: 7652072Abstract: Compositions comprising an asymmetric disiloxane surfactant composition comprising a silicone composition comprising a silicone having the formula: MM? where M or M? comprises an alkylpolyalkyleneoxide bearing substituent selected from the group consisting of: R13(C2H4O)a(C3H6O)b(C4H8O)cR14 and R12SiR5R6(R13(C2H4O)a(C3H6O)b(C4H8O)cR14) that exhibit resistance to hydrolysis over a wide pH range.Type: GrantFiled: June 30, 2006Date of Patent: January 26, 2010Assignee: Momentive Performance Materials Inc.Inventors: Mark D. Leatherman, George A. Policello, Suresh K. Rajaraman
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Publication number: 20100004476Abstract: Organosilicon compounds are prepared by the addition reaction of a gaseous unsaturated hydrocarbon with a silane or siloxane containing at least one silicon-bonded hydrogen atom in the presence of a hydrosilylation catalyst in a liquid reaction medium. In this process the unsaturated hydrocarbon and optionally the silane or siloxane is dispersed into the liquid reaction medium by a jet eductor (also known as a venturi pump) device and the resultant gas-in-liquid dispersion is introduced into a bubble reactor.Type: ApplicationFiled: June 30, 2009Publication date: January 7, 2010Applicant: Momentive Performance Materials, Inc.Inventors: Larry A. Divins, Frank D. Mendicino, John P. Smith, Marco Veri
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Publication number: 20090286899Abstract: 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.Type: ApplicationFiled: December 1, 2005Publication date: November 19, 2009Applicant: WACKER CHEMIE AGInventors: Marco Hofmann, Hans-Jürgen Eberle
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Patent number: 7598409Abstract: The present invention relates to a process for preparing silicon compounds bearing fluoroalkyl groups by hydrosilylation of a fluoroolefin in the presence of a hydrosilylation catalyst, which comprises initially charging and heating a hydrogenchlorosilane, then metering in the fluoroolefin and reacting the reaction mixture and subsequently isolating the hydrosilylation product.Type: GrantFiled: October 21, 2004Date of Patent: October 6, 2009Assignee: Degussa AGInventors: Eckhard Just, Sabine Giessler, Peter Jenkner
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Publication number: 20090171056Abstract: Ruthenium compounds which have, in their ligand sphere, at least one ?6-bonded arene ligand and a silyl ligand; ruthenium complexes which have, in their ligand sphere, at least one ?6-bonded arene ligand to which is bonded a silyl or siloxy radical directly or via a spacer, and ruthenium complexes which have, in their ligand sphere, at least one ?6-bonded arene ligand and at least one further ligand to which is bonded a silyl or siloxy radical directly or via a spacer are useful as hydrosilylation catalysts.Type: ApplicationFiled: March 28, 2007Publication date: July 2, 2009Applicant: WACKER CHEMIE AGInventors: Marco Hofmann, Hans-Juergen Eberle, Johann Weis
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Patent number: 7507775Abstract: Disiloxane compounds of the formula MM? Where M comprises either branched allyl hydrocarbon substituents or silanyl substituents and M? comprises an alkylpolyalkyleneoxide substituent. The disiloxane compounds of the invention exhibit an enhanced resistance to hydrolysis outside a pH range ranging from 6 to 7.5, and are useful as surfactants.Type: GrantFiled: December 13, 2005Date of Patent: March 24, 2009Assignee: Momentive Performance Materials Inc.Inventors: Mark D. Leatherman, George A. Policello, Suresh K. Rajaraman
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Publication number: 20090069524Abstract: Hydrosilylatable compositions employ ruthenium compounds with a ligand sphere comprising at least two independent carbon ?-bonded ligands, at least one of these ligands being selected from the group consisting of ?6-bonded arene ligands, ?6-bonded triene ligands, ?4-bonded 1,5-cyclooctadiene ligands and ?4-bonded 1,3,5-cyclooctatriene ligands as a hydrosilylation catalyst.Type: ApplicationFiled: March 28, 2007Publication date: March 12, 2009Applicant: WACKER CHEMIE AGInventors: Marco Hofmann, Hans-Juergen Eberle, Johann Weis
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Publication number: 20080287699Abstract: Compounds containing unsaturated carbon-carbon bonds are hydrosilylated with H-silanes or H-siloxanes in the presence of a noble metal catalyst, wherein the water content of the reaction mixture is less than 500 ppm and the noble metal catalyst is supplied as a liquid, and is present in an amount of not more than 50 ppm.Type: ApplicationFiled: October 13, 2006Publication date: November 20, 2008Applicant: WACKER CHEMIE AGInventors: Gilbert Geisberger, Frank Baumann
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Patent number: 7399875Abstract: The invention provides compounds preparable by the reaction of fluorous silanes (A) RF—CH2—CH2—SiX3 ??(A) where RF is a fully or partially fluorinated alkyl radical, X is Cl or O—CnH2n+1, and n is an integer from 1 to 20, with one or more alcohols of the formula (B) R(OH)m(NH2)p ??(B) where R is a C— and H-containing organic radical and m and p are subject either to condition a) m?2 and p=0, or condition b) m?1 and p?1.Type: GrantFiled: November 23, 2005Date of Patent: July 15, 2008Assignee: Clariant Produkte (Deutschland) GmbHInventor: Klaus Raab
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Patent number: 7375170Abstract: Since the majority of conventional organic/inorganic composite materials are obtained by mechanical blending of a silsesquioxane and an organic polymer or other means, it was extremely difficult to control the structure of the composite as a molecular agglomerate. In order to solve such a problem, the invention is to provide a silicon compound represented by Formula (1). This novel silicon compound has a living radical polymerization initiating ability for addition polymerizable monomers of a wide range.Type: GrantFiled: December 27, 2005Date of Patent: May 20, 2008Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Hisao Oikawa, Mikio Yamahiro, Koji Ohguma, Nobumasa Ootake, Kenichi Watanabe, Kohji Ohno, Yoshinobu Tsujii, Takeshi Fukuda
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Publication number: 20080081924Abstract: An asymmetric siloxane is made by reacting a silicone having the formula MHDxM?H where MH is R1R2HSiO1/2, M?H is R4R5HSiO1/2 and x is an integer 0?x?10 under selective hydrosilylation conditions in the presence of a precious metal hydrosilylation catalyst, with a first olefinic compound and in a second step, a monohydridosiloxane produced in the first step is reacted under hydrosilylating conditions with another olefinic compound different from the first olefinic compound.Type: ApplicationFiled: May 31, 2007Publication date: April 3, 2008Inventors: David D. Farris, Chauncey J. Rinard, Mark D. Leatherman
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Patent number: 7348447Abstract: Processes for preparing aromatic matrix materials by metal hydrosilylation followed by alcholysis are provided. Silicon-containing layers that contain such aromatic matrix materials are also provided, as well as electrophotographic photoreceptors and electrophotographic imaging apparatuses containing such silicon-containing layers.Type: GrantFiled: October 11, 2005Date of Patent: March 25, 2008Assignee: Xerox CorporationInventors: Timothy P. Bender, John F. Graham, Yvan Gagnon, Cheng-Kuo Hsiao, Nan-Xing Hu, Yu Qi
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Patent number: 7307180Abstract: A process for the preparation of a haloalkyldialkylchlorosilane is provided, wherein at the end of a hydrosilylation reaction, the product is recovered and iridium is recovered, the iridium being found in its original form of catalyst or in a converted form, the recovery of the iridium taking place under the following conditions a), b) and c): a) the recovery of the iridium is carried out: 1. either directly on the reaction medium at the end of the reaction, 2. or on the liquid distillation residue, including the byproducts and the iridium or its derivatives, as is obtained after distillation of the reaction medium in order to separate therefrom the product of formula (I), b) the iridium is recovered by bringing the reaction medium or the distillation residue into contact with an effective amount of carbon black which adsorbs the iridium, and c) the carbon black is separated from the iridium for the purpose of recovering the iridium.Type: GrantFiled: July 21, 2003Date of Patent: December 11, 2007Assignee: Rhodia ChimieInventors: Nathalie Guennouni, Kamel Ramdani
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Patent number: 7307178Abstract: A ?,?-unsaturated carboxylic acid silyl ester is prepared by reacting an ?,?-unsaturated carboxylic acid ester with a hydrosilane or hydrosiloxane in the presence of tris(pentafluorophenyl)borane. ?,?-Unsaturated carboxylic acid derivatives are readily prepared through fewer steps and in high yields.Type: GrantFiled: September 23, 2004Date of Patent: December 11, 2007Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Ayumu Kiyomori, Tohru Kubota
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Patent number: 7262315Abstract: Methods are provided for carrying out nucleophilic addition reactions using oxo, sulfido or amido complexes of transition metals as reaction catalysts. Exemplary catalysts are oxo complexes of Group 7 transition metals, with rhenium (V) oxo complexes, including dioxo complexes, preferred. Nucleophilic addition reactions that can be catalyzed using the present methods include silylation, hydrosilylation, hydroamination, silylmetalation, carbometalation, aldol reactions, hydro- and carbometalation initiated cyclization/polymerization, and epoxide/aziridine opening. The invention also pertains to novel transition metal complexes that have utility in catalyzing such reactions.Type: GrantFiled: May 21, 2002Date of Patent: August 28, 2007Assignee: California Institute of TechnologyInventors: Robert H. Grubbs, F. Dean Toste
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Patent number: 7208619Abstract: A silane or siloxane containing at least one organic group is prepared by a hydrosilylation reaction between a silane or siloxane (A) containing at least one Si—H group and an allyl compound (B) in the presence of a noble metal catalyst. The silane or siloxane (A) and the allyl compound (B) are fed continuously through a reaction zone which is maintained at a temperature in the range 115–200° C. and which is provided with heat exchanger means to dissipate the heat from the exothermic hydrosilylation reaction. The residence time of (A) and (B) in the reaction zone is less than 20 minutes.Type: GrantFiled: July 18, 2002Date of Patent: April 24, 2007Assignee: Dow Corning LimitedInventors: Timothy Rex Bunce, Avril Surgenor, Stephen Westall
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Patent number: 7145028Abstract: Continuous hydrosilylation of compounds (A) bearing C—C multiple bonds by means of silicon compounds (B) having Si—H groups, in which the reaction components (A) and (B) are reacted continuously in an integrated loop-tube reactor, with reaction mixture being conveyed from the tube into the loop and back again so that a section of the tube is part of the loop circuit, provides a highly controllable reaction process with high product yields.Type: GrantFiled: November 29, 2005Date of Patent: December 5, 2006Assignee: Wacker Chemie AGInventors: Gilbert Geisberger, Frank Baumann, Andreas Daniels
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Patent number: 7105622Abstract: Cyclosiloxane-multiol compositions, multicomponent polyurethane networks, and related methods are disclosed.Type: GrantFiled: June 2, 2004Date of Patent: September 12, 2006Assignee: The University of AkronInventors: Joseph P. Kennedy, Ralf M. Peetz
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Patent number: 7090896Abstract: A process for producing dielectric layers with low dielectric constants by thermal treatment of a sol-gel product of a multifunctional carbosilane, corresponding layers, and their use in the production of electronic components, are described.Type: GrantFiled: December 13, 2002Date of Patent: August 15, 2006Assignee: H.C. Starck GmbHInventors: Stephan Kirchmeyer, Detlef Gaiser, Harald Kraus, Udo Merker
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Patent number: 7078519Abstract: Methods for forming structurally defined organosilicon carbohydrates are provided. Additionally, structurally defined organosilicon carbohydrates are provided. The structurally defined organosilicon carbohydrates may be formed by contacting a hydrolase enzyme with an organosilicon reactant and a carbohydrate reactant. The enzyme may catalyze the formation of an ester bond between carboxylic acid, ester, or amide functional groups of the organosilicon or carbohydrate reactant and alcohol functional groups of the carbohydrate or organosilicon reactant. The enzyme may catalyze the formation of an amide bond between carboxylic acid, ester, or amide functional groups of the organosilicon or carbohydrate reactant and amine functional groups of the carbohydrate or organosilicon reactant.Type: GrantFiled: August 15, 2003Date of Patent: July 18, 2006Assignees: Dow Corning Corporation, Polytechnic UniversityInventors: Kurt Friedrich Brandstadt, Thomas Howard Lane, Richard A. Gross
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Patent number: 7070886Abstract: Disclosed is a holographic recording medium. The novel holographic recording mediums disclosed herein comprises: a) at least one polyfunctional epoxide monomer or oligomer which undergoes acid initiated cationic polymerization. Each epoxide in the monomer or oligomer is linked by group comprising a siloxane to a silicon atom and each monomer or oligomer has an epoxy equivalent weight of greater than about 300 grams/mole epoxide; b) a binder which is capable of supporting cationic polymerization; c) an acid generator capable of producing an acid upon exposure to actinic radiation; and optionally d) a sensitizer.Type: GrantFiled: July 13, 2004Date of Patent: July 4, 2006Assignee: Aprilis, Inc.Inventors: Erdem A. Cetin, Richard A. Minns, David A. Waldman
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Patent number: 7019145Abstract: The invention concerns an improved method for preparing catalysts for hydrosilylation reactions of compounds with ethylene or acetylene unsaturation (for example olefins or acetylene derivatives), in particular but not exclusively those involving polyorganosiloxanes (POS) bearing Si—H units and POS bearing Si-(ethylene or acetylene unsaturation) units. Said preparation corresponds to the following synthesis (I), wherein: A=B=carbon: T1, T2=cyclohexyl, t-butyl or methyl; T3, T4=H; DVTMS=divinyltetramethylsiloxane; t-BuOK=potassium tert-butylate; T.A=room temperature. The invention is characterised in that it consists in carrying out said synthesis in a single step by bringing together salt (III) above, Karstedt (IV) in the presence of a solvent (V) (THF) and a base (VI) (t-BuOK) at room temperature.Type: GrantFiled: June 4, 2002Date of Patent: March 28, 2006Assignee: Rhodia ChimieInventors: Olivier Buisine, Istvan Marko, Sebastien Sterin
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Patent number: 7005532Abstract: An object of the present invention is to provide a process of producing alkoxysilanes, which does not use a chlorosilane as the intermediate raw material, is improved in view of the environment, and is satisfactory with respect to the yield of a desired material. The present invention is concerned with a process of producing an alkoxysilane including hydrosilylating (A) an organosilicon compound having at least one hydrogen-silicon bond and at least one alkoxy group and (B) an organic compound having a carbon—carbon unsaturated bond in vapor phase in the presence of a mixture containing a hydrosilylation catalyst and a polyalkylene glycol and supported on a carrier, thereby adding hydrogen and silicon of the compound (A) to the carbon—carbon unsaturated bond in the compound (B).Type: GrantFiled: September 11, 2002Date of Patent: February 28, 2006Assignee: Toagosei Co., Ltd.Inventors: Eiichi Suzuki, Masaki Okamoto, Seitaro Tajima, Hiroshi Suzuki, Katsuyoshi Harada
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Patent number: 6897280Abstract: A process is disclosed for producing silicone copolymers, wherein the process comprises the steps of: (a) providing at least one multi-stage blade-mixed plug flow reactor having an entry and an exit; (b) continuously feeding (i) hydrogen siloxane, (ii) olefinically substituted polyether or olefin capable of reacting with said hydrogen siloxane, and (iii) catalyst for the reaction to the entry of the multi-stage blade-mixed plug flow reactor, and (c) continuously withdrawing from the exit of the multi-stage blade-mixed plug flow reactor a stream that comprises silicone copolymer and is substantially free of unreacted hydrogen siloxane, provided that said hydrogen siloxane and said polyether or olefin have a residence time at reaction temperature in the multi-stage blade-mixed plug flow reactor sufficient to effect substantially complete hydrosilation.Type: GrantFiled: September 23, 2002Date of Patent: May 24, 2005Assignee: General Electric CompanyInventors: Ladislau Heisler, David D. Farris, David B. Davis, Paul E. Austin
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Patent number: 6846895Abstract: A novel polysiloxane having the following structural units (I) and/or (II) and the structural unit (III), wherein A1 and A2 are an acid-dissociable monovalent organic group, R1 is hydrogen, monovalent (halogenated) hydrocarbon, halogen, or amino, R2 is monovalent (halogenated) hydrocarbon group, or halogen. A method of preparing such a polysiloxane, a silicon-containing alicyclic compound providing this polysiloxane, and a radiation-sensitive resin composition comprising this polysiloxane are also provided. The polysiloxane is useful as a resin component for a resist material, effectively senses radiation with a short wavelength, exhibits high transparency to radiation and superior dry etching properties, and excels in basic resist properties required for resist materials such as high sensitivity, resolution, developability, etc.Type: GrantFiled: February 12, 2003Date of Patent: January 25, 2005Assignee: JSR CorporationInventors: Haruo Iwasawa, Tsutomu Shimokawa, Akihiro Hayashi, Satoru Nishiyama
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Patent number: 6828404Abstract: A process for the preparation of an alkoxysilyl siloxane substituted with at least one epoxy, vinyl ether, 1-propenyl ether, acrylate or methacrylate group comprises selectively reacting a hydrosilane compound with a compound containing a vinyl or allyl group and a epoxy, vinyl ether, 1-propenyl ether, acrylate or methacrylate group, or a compound containing at least one vinyl or allyl group and at least one dialkoxysilyl or trialkoxysilyl group, to form at least one monohydrosiloxane. The monohydrosiloxane is further reacted to form an ambifunctional alkoxysilyl siloxane.Type: GrantFiled: October 19, 2001Date of Patent: December 7, 2004Assignee: Rensselaer Polytechnic InstituteInventor: James Vincent Crivello
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Patent number: 6809213Abstract: A highly efficient method is provided for preparing secondary aminoisobutylalkoxysilanes by reacting hydridoalkoxysilanes with secondary methallylamines in the presence of a hydrosilation catalyst.Type: GrantFiled: May 1, 2001Date of Patent: October 26, 2004Assignee: General Electric CompanyInventors: R. Shawn Childress, Michelle A. Filipkowski, Curtis L. Schilling, Jr.
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Patent number: 6759094Abstract: Branched organosiloxane (co)polymers comprising the structural elements of the formula Y[—CnH2n—(R2SiO)m—Ap—R2Si—G]x (I) where 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 —R2Si—R2—(R2SiO)m—, in which R2 is a divalent hydrocarbon radical, G is a monovalent radical of the formula —CfH2f−2—Z or a divalent radical of the formula —CnH2n— bonded to a further radical Y, Z is a monovalent hydrocarbon radical which is free from terminal aliphatic carbon-carbon multiple bonds, and is inert toward SiH groups in hydrosilylation reactions, x is an integer from 3 to 10, f is an integer from 2 to 12, k is 0 or 1, n is an integer from 2 to 12, m is an integer which is at least 1, and p is 0 or a positive integer, with the proviso that the branched organosiloxane (co)polymers contain onType: GrantFiled: July 17, 2002Date of Patent: July 6, 2004Assignee: Wacker-Chemie GmbHInventors: Christian Herzig, Reinhard Stallbauer, Christine Weizhofer
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Patent number: 6713644Abstract: Chloropropylsilanes are prepared via hydrosilation of olefinic halides with organosilicon hydrides, in the presence of neat platinum free copper containing catalysts. Organosilicon hydrides such as triethylsilane, olefinic halides such as allyl chloride, and catalysts such as copper acetate, copper chloride, copper sulphate, copper hydroxide, copper nitrate, and copper cyanide, can be used in the process.Type: GrantFiled: October 3, 2002Date of Patent: March 30, 2004Assignee: Dow Corning CorporationInventor: Binh Thanh Nguyen
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Patent number: 6696538Abstract: The present invention relates to low a dielectric material essential for a next generation semiconductor with high density and high performance, and more particularly to a low dielectric material that is thermally stable and has good film-forming properties and excellent mechanical properties, a dielectric film comprising the low dielectric material, and a semiconductor device manufactured using the dielectric film. The present invention provides an organic silicate polymer having a flexible organic bridge unit in the network prepared by the resin composition of the component (a) and the component (b).Type: GrantFiled: February 2, 2001Date of Patent: February 24, 2004Assignee: LG Chemical Ltd.Inventors: Min-Jin Ko, Hye-Yeong Nam, Jung-Won Kang, Myung-Sun Moon, Dong-Seok Shin
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Patent number: 6669949Abstract: This invention relates to asymmetrical, substituted polysiloxanes which show good compatibility in a variety of oils and improve the spreading behavior of oil-based formulations, to a process for preparing these asymmetrical polysiloxanes and to oil formulations containing said asymmetrical polysiloxanes. The asymmetrical polysiloxanes of this invention are used in herbicidal and pesticidal compositions, in cosmetic and pharmaceutical preparations as well as in industrial applications. The assymmetrical substituted polysiloxanes have the following formula wherein R1, R2, Z a and b are described herein.Type: GrantFiled: June 14, 2001Date of Patent: December 30, 2003Assignee: Goldschmidt AGInventors: Wayne Kennedy, Arno Knebelkamp, Peter Lersch, Jörg Simpelkamp, Stephen Wilkowski
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Publication number: 20030216591Abstract: A silicon compound having a repeating unit represented by the following general formula (1): 1Type: ApplicationFiled: September 16, 2002Publication date: November 20, 2003Inventors: Kazunori Ueno, Yomishi Toshida, Yuichi Hashimoto, Akihiro Senoo, Seiji Mashimo
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Patent number: 6605734Abstract: Alkene-platinum-silyl complexes described by formula (COD)Pt(SiR13−n)2Yn are claimed, where each R1 is independently selected from organic groups, halo atoms, and siloxy groups, each Y is an independently selected divalent bridging group between the silicon atoms bonded to platinum, n is 0, 1, 2, or 3, and COD is 1,5-cyclooctadiene.Type: GrantFiled: December 7, 2001Date of Patent: August 12, 2003Assignee: Dow Corning CorporationInventors: Aroop Kumar Roy, Richard Bruce Taylor
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Patent number: 6589903Abstract: A method for the synthesis of platinum alkenylpolysiloxane complexes, wherein a haloplatinum compound is reacted with at least one alkenylpolysiloxane, in the presence of a platinum complex as autocatalyst and a base, in an organic solvent.Type: GrantFiled: July 19, 2001Date of Patent: July 8, 2003Assignee: W. C. Heraeus GmbH & Co. KGInventors: Ramona Reitz, Richard Walter
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Patent number: 6590117Abstract: A process of preparing compounds containing silicon-carbon bonds by the hydrosilation of a hydridoalkoxysilyl reactant with an olefinic reactant comprises operating the process in the presence of a platinum catalyst and a reaction promoter comprising a weakly nucleophilic amine of the formula NZ1Z2Z3 wherein Z1 is an aryl, alkaryl, or aralkyl group of C6 to C20 carbon atoms, or an organosilyl substituent, SiR3, wherein R is an alkyl of C1 to C20 or an aryl of C6 to C10, Z2 is hydrogen, alkyl of C1 to C20, an aryl, alkaryl, or aralkyl group of C6 to C20 carbon atoms or SiR3, wherein R is as previously defined; Z3 is the same as Z1 or Z2, and, optionally, two Of Z1, Z2 and Z3 taken together with the nitrogen atom form an aromatic heterocyclic ring.Type: GrantFiled: November 15, 2001Date of Patent: July 8, 2003Assignee: Crompton CorporationInventors: Mark D. Westmeyer, Melinda B. Hale, R. Shawn Childress, Michelle A. Filipkowski, Rodica S. Himmeldirk
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Patent number: 6559329Abstract: The present invention is directed to a process comprising deblocking a silane of the formula (RIC(═O)O)yC6RII6−y−z[CxH2xSi(ORIII)3−a(RIV)a]z where RI is H, CH3 or RVO; RII is H or RVO; RIII is alkyl, phenyl or acyl from 1 to 6 carbon atoms; RIV is hydrogen, alkyl or phenyl from 1 to 6 carbon atoms; RV is a linear or branched alkyl group from 1 to 4 carbon atoms; y is an integer from 1 to 3; z is an integer from 1 to 3; x is an integer from 2 to 6 and a is an integer from 0 to 2 to yield a phenolic silane. Also disclosed are processes for making a blocked silane having the above formula.Type: GrantFiled: October 17, 2001Date of Patent: May 6, 2003Assignee: Crompton CorporationInventors: Eric R. Pohl, Scot M Turner
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Patent number: 6541593Abstract: A process for producing a reactive silicon group-containing polyether oligomer, which comprises reacting (a) a polyether oligomer the backbone chain of which comprises a polyether and which contains in a side chain or at a terminus of its molecule at least one unsaturated group of the following general formula (1): H2C═C(R1)—R2—O— (1) (wherein R1 represents a hydrocarbon group of not more than 10 carbon atoms; R2 represents a divalent organic group of 1 to 20 carbon atoms which contains in a side chain or at a terminus of its molecule at least one atomic species selected from the group consisting of hydrogen, oxygen and nitrogen as its constituent atom or atoms) or the general formula (2): HC(R1)═CH—R2—O— (2) (wherein R1 represents a hydrocarbon group of not more than 10 carbon atoms; R2 represents a divalent organic group of 1 to 20 carbon atoms which contains at least one atomic species selected from the group consisting of hydrogen, oxType: GrantFiled: June 14, 2000Date of Patent: April 1, 2003Assignee: Kaneka CorporationInventors: Hideharu Jyono, Hidetoshi Odaka, Hiroshi Ando, Hiroshi Iwakiri, Hiroshi Ito, Fumio Kawakubo
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Patent number: 6531260Abstract: A novel polysiloxane having the following structural units (I) and/or (II) and the structural unit (III), wherein A1 and A2 are an acid-dissociable monovalent organic group, R1 is hydrogen, monovalent (halogenated) hydrocarbon, halogen, or amino, R2 is monovalent (halogenated) hydrocarbon group, or halogen. A method of preparing such a polysiloxane, a silicon-containing alicyclic compound providing this polysiloxane, and a radiation-sensitive resin composition comprising this polysiloxane are also provided. The polysiloxane is useful as a resin component for a resist material, effectively senses radiation with a short wavelength, exhibits high transparency to radiation and superior dry etching properties, and excels in basic resist properties required for resist materials such as high sensitivity, resolution, developability, etc.Type: GrantFiled: April 3, 2001Date of Patent: March 11, 2003Assignee: JSR CorporationInventors: Haruo Iwasawa, Tsutomu Shimokawa, Akihiro Hayashi, Satoru Nishiyama
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Patent number: 6521769Abstract: Chiral ligands and transition metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The chiral ligands include chiral C1-C6 TunaPhos ligands. The ruthenium TunaPhos complex reduces ketones to the corresponding alcohols with 95-99.6% enantioselectivity. The transition metal complexes of the chiral ligands are useful in asymmetric reactions such as asymmetric hydrogenation, hydride transfer, hydrosilylation, hydroboration, hydrovinylation, hydroformylation, hydrocarboxylation, isomerization, allylic alkylation, cyclopropanation, Diels-Alder reaction, Heck reaction, isomerization, Aldol reaction, Michael addition and epoxidation reactions.Type: GrantFiled: September 19, 2000Date of Patent: February 18, 2003Assignee: The Penn State Research FoundationInventor: Xumu Zhang
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Patent number: 6518335Abstract: A method is provided for preparing sulfur-containing silane coupling agents by reacting an alkoxysilane acetal with a sulfurating agent. The sulfur-containing silane coupling agents so prepared include certain novel mercapto silanes, and are useful in providing rubber tires with improved properties.Type: GrantFiled: January 5, 2000Date of Patent: February 11, 2003Assignee: Crompton CorporationInventors: James D. Reedy, Kenneth W. Hartman
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Patent number: 6518371Abstract: A polyorganosiloxane containing the units (HR2Si—O1/2) HM units, (Si—O4/2) Q units, (R1Si—O3/2) T units and (R2Si—O2/2) D units in a ratio of from 2:1:0:0 to 6:4:2:2, or (HR2Si—O1/2) HM units, (R1Si—O3/2) T units, (R2Si—O2/2) D units and (R2(R1O)Si—O1/2) in a ratio HM:T:D:alkoxyM of from 1:2:0:0 to 3:4:2:2 is described, where R are identical or different, non-halogenated or halogenated hydrocarbon radicals having from 1 to 18 carbon atoms per radical, or are OR1, where R1 is a monovalent, unsubstituted or substituted hydrocarbon radical having from 1 to 8 carbon atoms, and in each molecule there are at least 3 Si-bonded hydrogen atoms. The polyorganosiloxanes are particularly useful as crosslinking agents in addition curable elastomer formulations.Type: GrantFiled: May 4, 2000Date of Patent: February 11, 2003Assignee: Wacker-Chemie GmbHInventors: Peter Fink, Peter Jerschow, Hedwig Schreiter, Richard Birneder, Alois Riedl
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Patent number: 6511720Abstract: 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: May 2, 2001Date of Patent: January 28, 2003Assignee: Merck Patent Geselleschaft mit Beschrankter HaftungInventors: Detlef Pauluth, Matthias Bremer, Edgar Böhm, Akio Osabe, Gerhard Herget, Wolfgang Hechler
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Patent number: 6500977Abstract: A process for producing an organosilane including reacting an alkene halide with a hydrogen silane in the presence of a hydrosilating catalyst. The alkene halide is present in an amount such that a molar excess of at least 5 moles per one mole of hydrogen silane is maintained.Type: GrantFiled: November 27, 2001Date of Patent: December 31, 2002Assignee: Dow Corning CorporationInventors: Paul C. Dinh, Dennis E. Phillips, David L. Brandt, William C. Maki