Plural Silicons In A Reactant Patents (Class 556/467)
  • Patent number: 9440999
    Abstract: The invention relates generally to transition metal salts, more specifically to iron, nickel, cobalt, manganese and ruthenium salts, activated with silylhydrides, and their use as efficient hydrosilylation catalysts.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: September 13, 2016
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Julie L. Boyer, Aroop Kumar Roy
  • Publication number: 20150141647
    Abstract: Disclosed herein are cobalt complexes containing terpyridine ligands and chelating alkene-modified silyl ligands, and their use as hydrosilylation and/or dehydrogenative silylation and crosslinking catalysts. The cobalt complexes also exhibit adequate air stability for handling and manipulation.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 21, 2015
    Inventors: Tianning Diao, Paul J. Chirik, Aroop Kumar Roy, Kenrick Lewis, Susan Nye, Johannes G.P. Delis, Keith J. Weller
  • Patent number: 8933259
    Abstract: Organosilicon compounds bearing SiOC groups and having low residual silicon-bonded chlorine are prepared continuously by reacting a chlorosilane with alcohol and optionally water by contacting a gaseous phase containing alcohol with a liquid phase containing silane, organosilicon intermediates, organosilicon compounds containing SiOC groups and optional inert solvent in a reaction column in which the gas phase passes through the liquid phase in bubble form, or is provided with a vaporizer operating by a crossflow principle.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 13, 2015
    Assignee: Wacker Chemie AG
    Inventors: Volker Stanjek, Nicolas Imlinger, Heribert Westermayer, Wolfgang Wewers
  • Publication number: 20150011749
    Abstract: Metal-accumulating plants for preparing compositions including a metal catalyst derived from the plants. The composition is substantially devoid of organic matter. Also, carrying out chemical reactions with the compositions prepared from metal-accumulating plants.
    Type: Application
    Filed: March 5, 2013
    Publication date: January 8, 2015
    Applicants: UNIVERSITE MONTPELLIER 2 SCIENCES ET TECHNIQUES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Claude Grison, Vincent Escande
  • Patent number: 8877059
    Abstract: The invention relates to a method for separating organosilicon compounds from organosilicon wastewater. In the first step, the wastewater is heated to at least 10° C. In the second step, the wastewater is stored for at least 30 minutes at at least 10° C. In the third step, the wastewater is conducted through a phase separation element, in which droplets that are formed and contain organosilicon compounds are separated.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: November 4, 2014
    Assignee: Wacker Chemie AG
    Inventors: Ulrike Buettner, Susanne Kutz, Winfried Mueller
  • Patent number: 8822621
    Abstract: A method for producing (hydroxymethyl)polysiloxanes of the general formula I (SiO4/2)k(R1SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2—(SiR22—X—Y—)aSiR22—CH2—OH]s[O1/2H]t??formula I, includes reacting silanol-containing organosiloxanes of the general formula II (SiO4/2)k(R1SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2H]r??formula II with cyclic or acyclic compounds that include at least one unit of the general formula III Z—[O—CH2—SiR22]n—Y??formula III
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: September 2, 2014
    Assignee: Wacker Chemie AG
    Inventors: Jürgen Oliver Daiss, Jens Cremer, Elke Fritz-Langhals, Steffen Jungermann
  • Patent number: 8816117
    Abstract: The subject of the invention is the method of synthesis of fluoracarbofunctional cage silsesquioxanes of the general formula in which•R1 stands for HCF2(CF2)n(CH2)mO(CH2)3Si(CH3)2O or HCF2(CF2)n(CH2)mO(CH2)3 group in which n=1-12, m=1-4;•R2, R3, R4, R5, R6, R7, R8 can be the same as R1 or different from it and stand all either for the (C1-C25) alkyl group or any aryl group, based on hydrosilylation of fluoroalkyl-allyl ether with an appropriate hydrogen-silsesquioxane in the presence of siloxide rhodium complex [{Rh(OSiMe3)(cod)}2] as a catalyst.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: August 26, 2014
    Assignee: Adam Mickiewicz University
    Inventors: Bogdan Marciniec, Hieronim Maciejewski, Michal Dutkiewicz
  • Patent number: 8765987
    Abstract: Disclosed herein is a process for the hydrosilylation of a composition containing a silyl hydride and a compound containing at least one unsaturated group, the process comprising contacting a non-previous metal based complex as a catalyst precursor with an activator being a reducing agent shortly before, simultaneously or after contacting the complex with the composition, to cause the silyl hydride to react with the compound containing at least one unsaturated group to produce a hydrosilylation product.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: July 1, 2014
    Assignees: Cornell University, Momentive Performance Materials Inc.
    Inventors: Paul J. Chirik, Aaron M. Tondreau, Johannes G. P. Delis, Kenrick M. Lewis, Keith J. Weller, Susan A. Nye
  • Patent number: 8759563
    Abstract: The present invention provides an organosilicon composition comprising diethoxymethylsilane, a concentration of dissolved residual chloride, and a concentration of dissolved residual chloride scavenger that does not yield unwanted chloride salt precipitate when combined with another composition comprising diethoxymethylsilane.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: June 24, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Steven Gerard Mayorga, Mark Leonard O'Neill, Kelly A. Chandler
  • Patent number: 8729284
    Abstract: A method for producing an anionized meso-form double-cross-linked ligand represented by formula (3), including: bringing a compound represented by formula (1) into contact with a compound represented by formula (2) at ?25° C. or less; and introducing an anionizing agent within 5 hours after the contact, wherein R1 to R10 are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or the like; A and A? are independently a cross-linking group containing an atom belonging to the 14th group of the periodic table; M and M? are independently an atom belonging to the 1st or the 2nd group of the periodic table.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: May 20, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Minoru Yabukami, Takuji Okamoto
  • Patent number: 8658816
    Abstract: The present invention relates to precipitated silicic acids, which have a particularly narrow particle size distribution in combination with a special pore size distribution, to a method for the production thereof, and to the use thereof as a filler for rubber mixtures.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: February 25, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Andre Wehmeier, Oleg Stenzel, Weicheng Wu, Christian Goetz, Werner Niedermeier, Marinus Haddeman, Anke Blume
  • Patent number: 8624050
    Abstract: A process according to the present invention comprises combining in a reaction mixture at least one metal alkyl compound of formula MRx with at least one silanol compound of formula; forming a film from the reaction mixture; and treating the film with heat and moisture; wherein an amount of the at least one silanol compound present ranges from about one quarter to about three quarters of an amount required to replace all alkyl groups of the at least one metal alkyl compounds with groups derived from the at least one silanol compound; M is, independently at each occurrence, Zn, Cd, Al, Ga, In, Tl, Hg, Pb, Bi or a combination thereof; x is, independently at each occurrence, an integer equal to 2 or 3; z is 0, 1 or 2; R is, independently at each occurrence, alkyl; and R1-R5 is independently H, alkyl, or hydroxyl.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: January 7, 2014
    Assignee: General Electric Company
    Inventors: Sergei Kniajanski, Aharon Yakimov
  • Publication number: 20130197254
    Abstract: The present invention relates to a liquid hydrosilicone resin and a preparation process thereof. The average composition of the liquid hydrosilicone resin is represented by the following formula: (R1R2R3SiO1/2)M·(R4R6SiO2/2)D·(R6SiO3/2)T·(SiO4/2)Q wherein R1 to R6 are identical or different radicals independently selected from the group consisting of organic groups and a hydrogen atom, with the proviso that at least one of R1to R6 is a hydrogen atom bonded directly to a silicon atom. The liquid hydrosilicone resin is obtained by dispersing a hydrosilicone oil, a hydroxyl silicone resin and a dehydrogenation catalyst in a solvent to form a dispersion, allowing the dispersion to react, and then removing the solvent and the catalyst.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 1, 2013
    Applicants: HENKEL AG & CO. KGAA, HENKEL CHINA CO., LTD.
    Inventors: HENKEL CHINA CO., LTD., HENKEL AG & CO. KGAA
  • Patent number: 8450515
    Abstract: The present invention relates to a preparation method for a linear or cyclic trisilaalkane which is a substance useful in the preparation of polycarbosilane and silicon carbide precursors. Linear or cyclic trisilaalkane and organic trichlorosilane derivatives can be synthesized simultaneously and in high yield by reacting bis(chlorosily)methane having a Si—H bond, either alone or together with an organic chloride, using a quaternary organic phosphonium salt compound as a catalyst. Further, since the catalyst can be recovered after use, the present invention is very economical and is thus effective for mass-producing precursors for organic/inorganic hybrid substances.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: May 28, 2013
    Assignee: Samsung Fine Chemicals Co., Ltd
    Inventor: Il Nam Jung
  • Patent number: 8329933
    Abstract: The present invention provides an organosilicon composition comprising diethoxymethylsilane, a concentration of dissolved residual chloride, and a concentration of dissolved residual chloride scavenger that does not yield unwanted chloride salt precipitate when combined with another composition comprising diethoxymethylsilane.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: December 11, 2012
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Steven Gerard Mayorga, Mark Leonard O'Neill, Kelly Ann Chandler
  • Patent number: 8207366
    Abstract: High boiling residue from the direct synthesis of alkylchlorosilanes are converted in large part to monosilanes by heating the residue by passage of alternating current in a pressurized reactor.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: June 26, 2012
    Assignee: Wacker Chemie AG
    Inventors: Manfred Boeck, Paul Fuchs, Konrad Mautner
  • Publication number: 20120130106
    Abstract: Disclosed herein is a process for the hydrosilylation of a composition containing a silyl hydride and a compound containing at least one unsaturated group, the process comprising contacting a non-previous metal based complex as a catalyst precursor with an activator being a reducing agent shortly before, simultaneously or after contacting the complex with the composition, to cause the silyl hydride to react with the compound containing at least one unsaturated group to produce a hydrosilylation product.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 24, 2012
    Applicants: Cornell University, Momentive Performance Materials Inc.
    Inventors: Paul J. Chirik, Aaron M. Tondreau, Johannes G.P. Delis, Kenrick M. Lewis, Keith J. Weller, Susan A. Nye
  • Patent number: 8153836
    Abstract: In a mixture of silsesquioxane compounds comprising silsesquioxane units having a side chain including a direct bond between a silicon atom and a norbornane skeleton and having a degree of condensation of substantially 100%, a dimethylene chain of the norbornane skeleton remote from the silicon bonded side is substituted with at least one substituent group other than hydrogen, and an isomer having a bulkier substituent group on the dimethylene chain at an exo position is present in a higher proportion.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: April 10, 2012
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Mutsuo Nakashima, Yoshitaka Hamada, Katsuya Takemura, Kazumi Noda
  • Patent number: 8097745
    Abstract: A simple method of producing an organosilicon compound of a formula R2n(OR4)mSi—R1—Si(OR4)mR2n is disclosed. The method comprises the following two steps, Y—R1—Y+SiXm+1R2n->R2nXmSi—R1—SiXmR2n R2nXmSi—R1—SiXmR2n+M(OR4)r,->R2n(OR4)mSi—R1—Si(OR4)mR2n In the formulas, R1 is methylene, alkylene, or arylene, R2 is alkyl, alkenyl, alkynyl, or aryl, m and n is 0 to 3, provided m+n=3, at least one m being 1 or more, Y is halogen, X is hydrogen or halogen, R4 is alkyl, alkenyl, alkynyl, or aryl, M is metal, and r is the valence of the metal). The organosilicon compound is used to form a film having excellent heat resistance, chemical resistance, conductivity, and modulus of elasticity.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: January 17, 2012
    Assignee: JSR Corporation
    Inventors: Yohei Nobe, Kang-go Chung, Ryuichi Saito
  • Publication number: 20110311439
    Abstract: A method for producing hydrogen (H2) includes the steps consisting in: a) reacting a compound (C) including one or more groups Si—H with a fluoride ions source, thereby forming hydrogen and a by-product (C1); and b) recovering the obtained hydrogen.
    Type: Application
    Filed: December 16, 2009
    Publication date: December 22, 2011
    Applicant: UNIVERSITE DE LA MEDITERRANEE AIX-MARSEILLE II
    Inventor: Jean-Michel Brunel
  • Publication number: 20110301375
    Abstract: A hydrolyzable group-containing organosilicon compound is represented by the general formula XCH2Si(OSiYR22)nR13-n??(1) wherein each R1 is independently a C1-20 hydrolyzable group; each R2 is independently a C1-20 substituted or unsubstituted monovalent hydrocarbyl group excluding groups that have an aliphatically unsaturated bond; X is a halogen atom; Y is the hydrogen atom or a C2-18 alkenyl group; and n is 1 or 2. The organosilicon compound of the present invention can efficiently introduce a hydrolysable group into various compounds through the hydrosilylation reaction.
    Type: Application
    Filed: December 24, 2009
    Publication date: December 8, 2011
    Inventors: Makoto Iwai, Yoshinori Taniguchi
  • Patent number: 8030509
    Abstract: In accordance with one aspect, the present invention provides an amino-siloxane composition comprising at least one of structures I, II, III, IV or V said compositions being useful for the capture of carbon dioxide from gas streams such as power plant flue gases. In addition, the present invention provides methods of preparing the amino-siloxane compositions are provided. Also provided are methods for reducing the amount of carbon dioxide in a process stream employing the amino-siloxane compositions of the invention as species which react with carbon dioxide to form an adduct with carbon dioxide. The reaction of the amino-siloxane compositions provided by the present invention with carbon dioxide is reversible and thus, the method provides for multicycle use of said compositions.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: October 4, 2011
    Assignee: General Electric Company
    Inventors: Robert James Perry, Larry Neil Lewis, Michael Joseph O'Brien, Grigorii Lev Soloveichik, Sergei Kniajanski, Tunchiao Hubert Lam, Julia Lam Lee, Malgorzata Iwona Rubinsztajn
  • Patent number: 7999128
    Abstract: Disclosed are hydroxyphenylbenzophenone derivatives of formula (1), wherein R1 and R2 independently from each other are hydrogen; C1-C20alkenyl; C3-C10cycloalkyl; or R1 and R2 together with the linking nitrogen atom form a 5- 6-membered heterocyclic ring; R3, R4 and R5 independently from each other are C1-C4alkyl; C1-C4alkoxy; or a radical of formula (1a) R6 is C1-C6alkyl; and A is a straight-chain or branched C3-C6alkylene, which is optionally interrupted by one or more *—O—*, or *—O—(CO)—* groups; and m is 0; or a number from 1 to 5. The compounds are useful as cosmetic UV filters with outstanding solubility properties in cosmetic oils.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: August 16, 2011
    Assignee: BASF SE
    Inventors: Jürg Haase, Stefan Müller, Thomas Ehlis
  • Patent number: 7960577
    Abstract: Organosilicon compounds having organyloxy groups are prepared by reacting an organosilicon compound (A) having at least one silanol group with a compound (B) containing at least two organyloxy groups in the presence of a component (C) comprising a zinc chelate (C1) and at least one additive (C2) selected from the group consisting of compounds containing basic nitrogen (C21) and alcohols (C22). The products are useful in compositions which crosslink at room temperature.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: June 14, 2011
    Assignee: Wacker Chemie AG
    Inventor: Marko Prasse
  • Publication number: 20110118427
    Abstract: Disclosed are a transition metal complex represented by the formula (1) and a method for producing the same; a substituted fluorene compound represented by the formula (2) and a method for producing the same; an olefin polymerization catalyst including the transition metal complex as a constituent component; and a method for producing a polyolefin resin, which includes polymerizing an olefin in the presence of the olefin polymerization catalyst.
    Type: Application
    Filed: July 7, 2009
    Publication date: May 19, 2011
    Inventors: Takahiro Hino, Hidenori Hanaoka, Taichi Senda
  • Patent number: 7679884
    Abstract: Disclosed are electrolytes that are organosilicon phosphorus-based, and supercapacitors which incorporate them. These electrolytes are cationic salts with a phosphorous containing organosilicon moiety. They appear particularly suitable for use in applications such as electric and hybrid electric vehicles.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: March 16, 2010
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Robert C. West, Lingzhi Zhang
  • Patent number: 7652163
    Abstract: Cyclic silazanes containing an oxamido ester group and methods of making these compounds are described. The compounds can be used, for example, to make oxamido ester-terminated siloxanes, which can be precursors for the preparation of various polymeric materials such as, for example, polydiorganosiloxane polyoxamides.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: January 26, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Charles M. Leir, Karl E. Benson, Richard G. Hansen
  • Patent number: 7592474
    Abstract: Silanes of the formula: [(ZmRnSi—R1o—)pR2q—Y—C(X)—Y—]rG[—Y—(X)C—Y—R3]s??(I), in which m+n=3; m=1, 2 or 3; n=0, 1 or 2; o=0 or 1, and q=1 if o=0; p=1, 2, 3 or 4; q=0 or 1, and p=1 if q=0; r, s=1, 2 or 3; and Z is a hydrolyzable atom or group; R is a nonhydrolyzable group without an epoxide group; R1 is a divalent group; R2 is a (p+1)-valent group; R3 is a nonhydrolyzable, epoxy-containing group; X is an oxygen atom and/or sulfur atom; G is an (r+s)-valent cyclic group; Y is an oxygen atom, sulfur atom or imino group >NR4 where R4=hydrogen atom, group R, group (ZmRnSi—R1o—)pR2q—, group R3—, group (ZmRnSi—R1o—)pR2q—NH—C(X)— or group R3—NH—C(X)—; processes for their preparation, and their use.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: September 22, 2009
    Assignee: BASF Coatings AG
    Inventors: Andreas Poppe, Elke Westhoff, Winfried Stübbe
  • Patent number: 7544827
    Abstract: Chemical vapor deposition processes result in films having low dielectric constants when suitable chemical precursors are utilized. Preferred chemical precursors include siloxanes, (fluoroalkyl)fluorosiloxanes, (fluoroalkyl)silanes, (alkyl)fluorosilanes, (fluoroalkyl)fluorosilanes, alkylsiloxysilanes, alkoxysilanes, alkylalkoxysilanes, silylmethanes, alkoxysilylmethanes, alkylalkoxysilylmethanes, alkoxymethanes, alkylalkoxymethanes, and mixtures thereof. The precursors are particularly suited to thermal CVD for producing low dielectric constant films at relatively low temperatures, particularly without the use of additional oxidizing agents. Such films are useful in the microelectronics industry.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: June 9, 2009
    Assignee: ASM Japan K.K.
    Inventor: Michael A. Todd
  • Patent number: 7456307
    Abstract: A method for the preparation of a chain hydrocarbon halosilylated at its terminal carbon atom or terminal carbon atoms by subjecting a diene-type compound and a hydrogenhalosilane to a hydrosilylation reaction in the presence of a hydrosilylation catalyst and an ether compound having no aliphatic triple bond. A method of conducting a hydrosilylation reaction between a diene-type compound that has vinyl groups on both terminals and a hydrogenhalosilane in the presence of a hydrosilylation catalyst and an ether compound having no aliphatic triple bond.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: November 25, 2008
    Assignee: Dow Corning Toray Company, Ltd.
    Inventor: Takeaki Saiki
  • Patent number: 7279589
    Abstract: A 1-(alkoxysilyl)ethyl-1,1,3,3-tetramethyldisiloxane is prepared by adding a vinyl-containing alkoxysilane in portions to 1,1,3,3-tetramethyldisiloxane in the presence of a rhodium compound, and effecting reaction.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: October 9, 2007
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Katsuhiro Uehara, Tohru Kubota
  • Patent number: 7202376
    Abstract: The present invention is related to a method of producing polycarbosilane by heating polydimethylsilane at low pressure within the range of 320˜450° C. using zeolite having the Si/Al or Si/B ratio of 1˜200 as catalyst. This invention uses a zeolite with the structure of ZSM-5, ZSM-11, ZSM-12, zeolite X and zeolite Y, which has the Si/Al or Si/B ratio of 1˜200, as catalyst. When polycarbosilane is produced using a specific zeolite as catalyst, Si/Al or Si/B ratio can be adjusted at any proportion, enabling acidity control of catalyst, and therefore the molecular weight of final products can be easily controlled and the product yield can be improved, compared to conventional solid acid catalysts.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: April 10, 2007
    Assignees: DACC Co., Ltd., Korea Institute of Ceramic Engineering & Technology
    Inventors: Hong Sik Park, Dong Won Lim, Kwang Soo Kim, Young Hee Kim, Doh Hyung Riu, Hyung Rae Kim, Dong Geun Shin, Soo Ryong Kim, Kyung Ja Kim, Hyun Kyu Shin, Dae Hyun Cho
  • Patent number: 7189868
    Abstract: Novel cyclic siloxane compounds have both an aliphatic unsaturation-containing organic group and fluorinated alkyl groups within the molecular structure. When used to form silicone fluids and rubbers, they are useful as a modifier for giving novel physical properties thereto and when used as polymerizable monomers, they are effective for improving the performance of polymers or forming polymers with novel physical properties.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: March 13, 2007
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Katsuhiro Uehara, Tohru Kubota
  • Patent number: 7148370
    Abstract: The present invention provides a novel method for the preparation of diorganosilanes by disproportionation of a hydridosiloxanes comprising at least one terminal SiH group and at least one siloxane bond in the presence of Lewis acid catalysts. The reaction is both selective and occurs under mild conditions. The triaryl borane, tris(petafluorophenyl)borane, is especially suited for use as a catalyst in the reaction. Organic catalysts such as tris(pentafluorophenyl)borane are typically preferred owing to their greater solubility and stability in the reaction mixture, relative to inorganic Lewis acid catalysts. The product, diorganosilane may be isolated from the product mixture by conventional techniques such as distillation.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: December 12, 2006
    Assignee: General Electric Company
    Inventors: Slawomir Rubinsztajn, James Anthony Cella, Julian Chojnowski, Witold Fortuniak, Jan Kurjata
  • Patent number: 7132493
    Abstract: Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or more aromatic-substituted polysiloxane prepolymers with one or more aromatic monomers, alkylated monomers or hydrophilic monomers.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: November 7, 2006
    Assignee: Bausch & Lomb Incorporated
    Inventors: Yu-Chin Lai, Edmond T. Quinn
  • Patent number: 7015296
    Abstract: By reacting two types of organosiloxane compounds in the presence of an alkaline compound and under conditions that do not substantially promote equilibration reaction, a linear organosiloxane polymer having a single peak molecular weight distribution is simply and economically produced with minimized formation of cyclics.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: March 21, 2006
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroshi Nakayama, Masao Maruyama, Hiromi Nakabayashi, Masaaki Furuya, Tetsuo Nakanishi
  • Patent number: 6972312
    Abstract: Three processes for the manufacture of polyhedral oligomeric silsesquioxanes (POSS) which utilize the action of bases that are capable of either attacking silicon or any compound that can react with a protic solvent (e.g. ROH, H2O etc.) and generate hydroxide [OH]?, alkoxide [RO]??, etc. The first process utilizes such bases to effectively redistribute the silicon-oxygen frameworks in polymeric silsesquioxanes [RSiO1.5]28 where ?=1-1,000,000 or higher into POSS nanostructures of formulas [(RSiO1.5)n?#, homoleptic, [(RXSiO1.5)n]?#, functionalized homoleptic, [(RSiO1.5)m(R?SiO1.5)n]?#, heteroleptic, and {(RSiO1.5)m(RXSiO1.0)n}?#, functionalized heteroleptic nanostructures. The second process utilizes base to aid in the formation of POSS nanostructures of formulas [(RSiO1.5)n]?# homoleptic and [(RSiO1.5)m(R?SiO1.5)n]?# heteroleptic and [(RSiO1.5)m(RXSiO1.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: December 6, 2005
    Assignee: Hybrid Plastics LLC
    Inventors: Joseph D. Lichtenhan, Joseph J. Schwab, Yi-Zong An, William Reinerth, Michael J. Carr, Frank J. Feher, Raquel Terroba, Qibo Liu
  • Patent number: 6943265
    Abstract: The invention relates to a method for the production of hydroxyalkyl polysiloxanes of general formula (V) (SiO4/2)k(R12SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2SiR32—(CR42)b—OH]5[O1/2H]t (V), wherein organosiloxanes of general formula (VI) (SiO4/2)k(R1SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2H]r(VI) containing silanol are made to react with compounds having at least one unit of general formula (IV) [O—(CR42)b—SiR32]n—(IV).
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: September 13, 2005
    Assignee: Consortium fur Elektrochemische Industrie, GmbH
    Inventors: Oliver Schäfer, Thomas Kammel, Bernd Pachaly
  • Patent number: 6927270
    Abstract: Efficient processes have been developed for the cost effective functionalization of polyhedral oligomeric silsesquioxane-silanols (POSS-Silanols) and for the manufacture of polyfunctional polyhedral oligomeric silsesquioxanes. The processes utilize the action of bases or acids on silane coupling agents. The preferred process utilizes base to promote the silylation of POSS-Silanols of the formula [(RSiO1.5)n(R(HO)SiO1.0)m]?# with silane coupling agents to form POSS species with functionalized incompletely condensed nanostructures [(RSiO1.5)n(R(YSiR2O)SiO1.0)m]?# or functionalized completely condensed nanostructures [(RSiO1.5)n(YSiO1.5)1]?#. The process can alternately be conducted with acids. A second process utilizes base to alkylate POSS-Silanols with functionalized alkyl halides. A third related process utilizes base to react with silane coupling agents to form polyfunctional, fully condensed POSS species of formula [(YSiO1.5)n]?#. This process can also alternately be conducted under acidic conditions.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: August 9, 2005
    Assignee: Hybrid Plastics LLP
    Inventors: Joseph D. Lichtenhan, Joseph J. Schwab, Yi-Zhong An, Qibo Liu, Timothy S. Haddad
  • Publication number: 20040242912
    Abstract: A branched tetrasiloxane is prepared by preforming a liquid mixture of a disiloxane compound, an alcohol and an acid catalyst, adding a trialkoxysilane compound to the mixture for reaction, and adding water to the reaction mixture for co-hydrolysis, thereby forming a branched tetrasiloxane. The method is capable of preparing a branched lo tetrasiloxane, especially methyltris(trimethylsiloxy)silane having a sufficiently high purity to use as cosmetic oil in good yields.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 2, 2004
    Inventors: Yasufumi Kubota, Tohru Kubota, Satoshi Onai, Koji Sakuta, Akira Yamamoto
  • Patent number: 6774202
    Abstract: Provided are polyorganosilsesquioxane and process for preparing the same. The polyorganosilsesquioxane is obtained by various methods including polymerization of an organosilanetriol as starting materials. The polyorganosilsesquioxane has convenience in handling and controlling the rate of polymerization, and structure of highly regular form, and be imparted high functionality and various characteristics as compared to a conventional polyorganosilsesquioxane.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: August 10, 2004
    Assignee: Intersilicone, Ltd.
    Inventor: Eung-Chan Lee
  • Publication number: 20040073031
    Abstract: The invention relates to a method for the production of hydroxyalkyl polysiloxanes of general formula (V) (SiO4/2)k(R12SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2SiR3213 (CR42)b—OH]s[O1/2H]t (V), wherein organosiloxanes of general formula (VI) (SiO4/2)k(R1SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2H]r(VI) containing silanol are made to react with compounds having at least one unit of general formula (IV) [O—(CR42)—SiR32]n— (IV).
    Type: Application
    Filed: September 2, 2003
    Publication date: April 15, 2004
    Inventors: Oliver Schfer, Thomas Kammel, Bernd Pachaly
  • Patent number: 6663668
    Abstract: An hydratable porous polymer comprising a polymerized polyorganosiloxane macromonomer of formula I Q—[M—L]c—M—Q  (I) wherein c is in the range of from 0 to 5, preferably in the range of from 0 to 3; M may be the same or different and is a difunctional block of molecular weight in the range of from 100 to 8000 and wherein at least one M comprises a residue from a difunctional polymer or copolymer comprising siloxane repeat units of formula II where R1 and R2 may be the same or different and are selected from the group consisting of hydrogen, optionally substituted alkyl, alkenyl, alkynyl, aryl, haloalkyl, haloalkenyl, haloalkynyl, haloaryl, heterocyclyl, and haloheterocyclyl; L is a difunctional group; and Q may be the same or different and is a polymerizable group.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: December 16, 2003
    Assignee: Novartis AG
    Inventors: Hassan Chaouk, Gordon Francis Meijs
  • Patent number: 6605683
    Abstract: A process for producing a solution of a silicone oligomer which comprises adding to an alkoxysilane, as a self-catalyst, a solution comprising a silicon compound which is soluble in hydrophilic solvents and has an average structural unit represented by R1nSiOx/2(OH)y(OR2)z, wherein R1 represents an alkyl group having 1 to 3 carbon atoms, vinyl group or phenyl group, a plurality of R1 may represent a same group or different groups, R2 represents an alkyl group having 1 to 3 carbon atoms, a plurality of R2 may represent a same group or different groups and n, x, y and z represent numbers satisfying relations: 0≦n<3, 0<x<4, y>0, z≧0 and y+z=4−n−x, and hydrolyzing and polycondensing the alkoxysilane; and a film of an organopolysiloxane formed from the solution of a silicone oligomer.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: August 12, 2003
    Assignee: Nihon Yamamura Glass Co., LTD
    Inventor: Zuyi Zhang
  • Patent number: 6531620
    Abstract: The invention relates to cyclic silazanes of the formula II in which R is a divalent, Si—C and C—N-bound, optionally cyano- or halogen-substituted C3-C15-hydrocarbon radical, in which one or more, non-adjacent methylene units may be replaced by —O—, —CO—, —COO—, —OCO—, —OCOO—, —S— or —NRX— groups and in which one or more non-adjacent methine units may be replaced by —N═, —N═N— or —P═ groups, where at least 3 and at most 6 atoms are arranged between the silicon atom and the nitrogen atom of the ring, RX is hydrogen or an optionally halogen-substituted C1-C10-hydrocarbon radical, and R2 is a hydrogen atom or a monovalent, optionally cyano- or halogen-substituted, Si-C- bound C1-C20-hydrocarbon radical or C1-C20-hydrocarbonoxy radical, in each of which one or more non-adjacent methylene units may be replaced by —O—, —CO—, —COO&mda
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: March 11, 2003
    Assignee: Consortium fur Elecktrochemische Industrie GmbH
    Inventors: Leonhard Brader, Oliver Schäfer, Andreas Bauer, Volker Frey, Bernd Pachaly
  • Patent number: 6506868
    Abstract: The present invention provides a partial condensate of glycidyl ether group-containing alkoxysilane which is obtainable by dealcoholization reaction between glycidol and a partial condensate of alkoxysilane, compositions comprising the same and preparation methods thereof. Further, the present invention provides an alkoxy-containing silane-modified polyimide resin, alkoxy-containing silane-modified polyamide-imide resin and alkoxy-containing silane-modified phenol resin which are modified with the partial condensate of glycidyl ether group-containing alkoxysilane, and preparation methods thereof.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: January 14, 2003
    Assignee: Arakawa Chemical Industries, Ltd.
    Inventors: Hideki Goda, Shoji Takeda, Tetsuji Higashino
  • Publication number: 20020133035
    Abstract: A low molecular weight branched siloxane, typically methyltris(trimethylsiloxy)silane is effectively prepared in high yields by reacting a trichlorosilane, typically methyltrichlorosilane with a disiloxane, typically hexamethyldisiloxane in the presence of a linear phosphonitrilic chloride (LPNC) catalyst.
    Type: Application
    Filed: March 14, 2002
    Publication date: September 19, 2002
    Inventors: Satoshi Asai, Kazumasa Tsukioka
  • Publication number: 20020099233
    Abstract: A process for the production of linear silanol stopped siloxanes comprising: a) conducting a ring opening polymerization of a hexaorganocyclotrisiloxane having the formula:
    Type: Application
    Filed: January 23, 2002
    Publication date: July 25, 2002
    Applicant: General Electric Company
    Inventors: Nancy E. Gosh, John S. Razzano, Slawomir Rubinsztajn
  • Patent number: 6399733
    Abstract: A process for preparing a highly pure silicone ladder polymer of the general formula (1): wherein R1 and R2 represent F, H, a lower alkyl group, an alkenyl group, an aryl group, a lower fluorinated alkyl group, a fluorinated alkenyl group or a fluorinated aryl group; R3, R4, R5 and R6 each represents H, a lower alkyl group or a lower fluorinated alkyl group; and n represents an integer of 5 to 10000, which comprises: (a) a step of obtaining a prepolymer in which at least one organosilane compound is dissolved in an organic solvent and hydrolyzed with ultrapure water; (b) a step of washing the obtained prepolymer with ultrapure water; and, (c) a step of dissolving the washed prepolymer in an organic solvent and heating without a catalyst.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: June 4, 2002
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shigeyuki Yamamoto, Naoki Yasuda, Motohisa Taguchi
  • Patent number: 6353073
    Abstract: The present invention provides near quantitative yields of greater than about 95% isomeric purity of poly(3-aminopropylmethylsiloxane)-poly(dimethylsiloxane) copolymers of the general formulae: Me3Si(H2NCH2CH2CH2MeSiO)w(Me2SiO)xOSiMe3 (H2NCH2CH2CH2MeSiO)y(Me2SiO)z wherein Me is methyl, w may range from 1 to about 100, x may range from 1 to about 100, y may range from 1 to about 6, z may range from 1 to about 6 and y+z may range from 3 to about 7.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: March 5, 2002
    Assignee: Archimica (Florida), Inc.
    Inventors: Timothy N. Biggs, Benigno A. Janeiro