Polymer Derived From Silicon Monomer Patents (Class 525/326.5)
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Patent number: 6426396Abstract: Poly(cyclic conjugated diene) polymers are prepared by polymerizing a cyclic conjugated diene monomer or cyclic conjugated diene monomer and a double bond-containing monomer using a transition metal catalyst, preferably a Ni-based catalyst, in a non-polar solvent containing a basic compound or an aromatic halide solvent. The poly(cyclic conjugated diene) polymer may then be subsequently modified by reaction of at least one of the double bonds of the polymer with a modifying substance, for example hydrogen.Type: GrantFiled: May 6, 1999Date of Patent: July 30, 2002Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Mitsuru Nakano, Arimitsu Usuki, Qing Yao
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Patent number: 6426392Abstract: This invention is related to a thermoplastic crosslinked product obtainable by the crosslinking reaction of a composition comprising (A) a polymer having a silicon-containing group and (B) a tetravalent tin compound, said silicon-containing group having a hydrolyzable group bound to a silicon atom and capable of crosslinking through formation of a siloxane bond.Type: GrantFiled: May 30, 2000Date of Patent: July 30, 2002Assignee: Kaneka CorporationInventors: Makoto Chiba, Junji Takase
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Patent number: 6395837Abstract: The present invention is directed to a highly active condensation catalyst suitable for the crosslinking of alkoxysilanyl polyolefins, e.g.Type: GrantFiled: July 19, 2001Date of Patent: May 28, 2002Assignee: KIng Industries, Inc.Inventors: Werner J. Blank, Edward T. Hessell, Richard A. Abramshe
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Patent number: 6392008Abstract: Compositions of polyphosphazene-containing polymers and methods of preparation thereof are provided. The disclosed compositions encompass telechelic functionalized polyphosphazenes and a variety of block and graft polyphosphazene-polystyrene, polyphosphazene-polysiloxane, and polyphosphazene-ROMP of norbornene copolymers. Methods for the preparation of such compositions generally involve generation of a polydichlorophosphazene species, attachment of a function group to the resultant polyphosphazene compound, and coupling the functionalized polyphosphazene with a corresponding organic or inorganic polymers or polymerizing the functionalized polyphosphazene with corresponding organic molecules.Type: GrantFiled: July 21, 2000Date of Patent: May 21, 2002Assignee: The Penn State Research FoundationInventors: Harry R. Allcock, Robbyn Prange, Christine R. deDenus, James M. Nelson, Chester A. Crane, Walter R. Laredo, Scott D. Reeves
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Publication number: 20020042461Abstract: A composition comprising a cyclic olefin addition copolymer containing recurring units of the following formulas (1) and (2), 1Type: ApplicationFiled: October 2, 2001Publication date: April 11, 2002Applicant: JSR CorporationInventors: Noboru Oshima, Yooichiroh Maruyama, Nobuyuki Sakabe, Katsutoshi Sawada, Kenzo Ohkita, Yuuichi Hashiguchi, Tarou Kanamori, Kouji Kawahara
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Patent number: 6362301Abstract: The present invention relates to a curable composition including an acryloxysilane- or acyloxysilane-containing oligomer prepared by a continuous process. In addition, photocurable composition including an alkoxysilane or acyloxysilane oligomer is provided. Methods are provided for curing the curable and photocurable compositions.Type: GrantFiled: October 15, 1999Date of Patent: March 26, 2002Assignee: Rohm and Haas CompanyInventors: Michael Damian Bowe, Linda Louise Graham, Gary David Greenblatt, Barry Clifford Lange, Richard Foster Merritt
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Publication number: 20020035213Abstract: The present invention is directed to a crosslinkable polymer composition comprising an alkoxysilane functional polyolefin and a silanol crosslinking catalyst selected from the group consisting of:Type: ApplicationFiled: July 19, 2001Publication date: March 21, 2002Inventors: Werner J. Blank, Edward T. Hessell, Richard A. Abramshe
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Patent number: 6348546Abstract: The present invention has its object to provide an isobutylene group block copolymer containing a highly reactive alkenyl group with a high rate of introduction of an alkenyl, and process for producing the same. An alkenyl-group-containing isobutylene group block copolymer comprising a polymer block derived from (a) a monomer component containing isobutylene group as a predominant monomer and (b) a monomer component not containing isobutylene group as a predominant monomer, in which said block copolymer has an alkenyl group of the following general formula (1).Type: GrantFiled: February 20, 2001Date of Patent: February 19, 2002Assignee: Kaneka CorporationInventors: Tomoki Hiiro, Shinji Ozawa, Taizo Aoyama
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Patent number: 6344521Abstract: Terminally functionalized silicone triblock copolymers prepared using protected functionalized initiators and processes for preparing the same. The silicone triblock copolymers includes protected, functionalized silicone diene and/or alkenylsubstituted aromatic copolymers. The protected functionalized copolymers can be optionally deprotected to afford functionalized silicone diene and/or alkenylsubstituted aromatic copolymers.Type: GrantFiled: January 10, 2000Date of Patent: February 5, 2002Assignee: FMC CorporationInventors: James Anthony Schwindeman, Robert James Letchford
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Patent number: 6319990Abstract: A thermoplastic elastomer produced without a hydrogenation step is functionalized utilizing a free radical initiator and a functionalizing monomer having at least one point of unsaturation. The base polymers can be produced by copolymerizing an &agr;-olefin capable of producing an amorphous backbone with a comonomer which provides a “hook” for grafting to with a living polystyrene chain. Another method is to copolymerize an &agr;-olefin monomer system capable of producing an amorphous backbone with a comonomer containing a functional group from which an anionically polymerizable monomer is grown from the backbone. A third method involves copolymerizing an &agr;-olefin monomer system capable of giving an amorphous backbone with an olefin-terminated polystyrene comonomer. In a less preferred embodiment a conventional EPDM polymer can be metallated and a monoalkenyl aromatic compound anionically polymerizable monomer grown from the backbone.Type: GrantFiled: February 11, 2000Date of Patent: November 20, 2001Assignee: Shell Oil CompanyInventors: Bridget Ann Spence, Ronald James Hoxmeier, Robert Charles Job
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Patent number: 6306961Abstract: A thermoplastic resin composition comprises a thermoplastic resin (A) and graft copolymer particles (B) having a hollow rubber portion and graft chain, in which a volumetric proportion of hollow part in the hollow rubber portion of the graft copolymer particles is 1 to 70% by volume. The thermoplastic resin composition contains the thermoplastic resin and the graft copolymer particles in a weight ratio (A)/(B) of 2/98 to 100/1. The hollow part in the graft copolymer particle functions to further improve impact resistance.Type: GrantFiled: October 22, 1999Date of Patent: October 23, 2001Assignee: Kaneka CorporationInventors: Hiroshi Tone, Koji Yui, Ikuhiro Mishima, Kazuhito Wada, Akira Takaki
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Patent number: 6268451Abstract: A method for preparing a moisture-curable, pseudo-telechelic, silyl-functional polyisobutylene terpolymer is disclosed, said method comprising reacting, in the presence of a Lewis acid and a solvent, (A) an isobutylene monomer; (B) a isopropenylphenyl comonomer having the formula (C) a vinylphenyl comonomer of the formula wherein R′ is a divalent non-aromatic hydrocarbon group having 2 to 6 carbon atoms, R″ is independently selected from alkyl groups having 1 to 10 carbon atoms or aryl groups having 6 to 10 carbon atoms, R is a divalent non-aromatic hydrocarbon group having 2 to 6 carbon atoms, X is independently a hydrolyzable group and n is independently 1, 2 or 3, with the proviso that rAC is greater than 1 and rAB is less than 1, wherein rAB is the reactivity ratio of said isobutylene in the presence of said comonomer (B) and said solvent and rAC is the reactivity ratio of said isobutylene in the presence of said comonomer (C) and said solvent.Type: GrantFiled: October 3, 2000Date of Patent: July 31, 2001Assignees: University of Massachusetts Lowell, Dow Corning Corporation LowellInventors: Rudolf Faust, Savvas E. Hadjikyriacou, Toshio Suzuki
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Patent number: 6255392Abstract: A curable topcoat composition comprising (A) 100 to 30 parts by weight of a vinyl copolymer having a main chain substantially composed of a vinyl copolymer, having both at least one specific hydrolyzable silyl group and at least one hydroxyl group in its main chain end and/or side chain, and having a carbonato structure in its main chain and/or side chain, (B) 0.001 to 70 parts by weight of a hydroxyl group-containing compound having no hydrolyzable silyl group, and (C) a solvent, the total of the components (A) and (B) being 100 parts by weight. The coating films formed from the curable composition are excellent in acid resistance, scratch resistance, appearance and thermosetting property and, in particular, the composition can be suitably used as a top coat for automobiles.Type: GrantFiled: April 30, 1999Date of Patent: July 3, 2001Assignee: Kaneka CorporationInventors: Masaharu Inoue, Yoshiyuki Kono, Seigo Nakamura, Toshiro Nanbu
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Patent number: 6255404Abstract: A method for controlling any increase in Mooney viscosity during aging of siloxane-functionalized polymers includes the step of adding a viscosity stabilizing effective amount of a viscosity stabilizing agent selected from the group consisting of alkyl alkoxysilanes of the structural formula R1nSi(OR2)4-n wherein R1 is selected from the group consisting of C1 to C20 alkyl, C4 to C10 cycloalkyl, or C5 to C20 aromatic groups, wherein R2 may be the same as or different from R1 and is selected from the group consisting of C1 to C20 alkyl, C4 to C10 cycloalkyl, or C5 to C20 aromatic groups, and wherein n is an integer from 1 to 3. The method provides for the stabilization of Mooney viscosity of siloxane-functionalized polymers at any given level upon aging. The viscosity stabilizing agents react with the siloxane-functionalized polymers during hydrolysis of the siloxane end groups to form moisture stabilized polymers.Type: GrantFiled: July 26, 1999Date of Patent: July 3, 2001Assignee: Bridgestone CorporationInventors: Terrence E. Hogan, Chen-Chy Lin, William L. Hergenrother
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Patent number: 6235848Abstract: A crosslinkable molding material is provided that includes: (a) 3 to 98 parts by weight of one or more thermoplastics and (b) 2 to 97 parts by weight of a substantially amorphous poly-&agr;-olefin which is grafted with a silane which has at least one olefinic double bond and one to three alkoxy groups bonded directly to the silicon, this grafted poly-&agr;-olefin having a melt viscosity at 190° C. in the range from 100 to 50,000 mPa.s. A molding material or shaped articles are provided that have high impact strength, high tensile strength and a smaller tendency to creep.Type: GrantFiled: March 3, 1999Date of Patent: May 22, 2001Assignee: Huels AktiengesellschaftInventors: Peter Bickert, Hans Guenther Wey
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Patent number: 6211320Abstract: In accordance with the present invention, there are provided low viscosity acrylate monomers, and compositions based on same having low moisture resistance (and, hence are much less prone to give rise to “popcorning”), excellent handling properties (i.e., generally existing as a fluid material which does not require the addition of solvent to facilitate the use thereof), and excellent performance properties (e.g., good dielectric properties).Type: GrantFiled: July 28, 1999Date of Patent: April 3, 2001Assignee: Dexter CorporationInventors: Stephen M. Dershem, Jose A. Osuna
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Patent number: 6184304Abstract: A photoluminescent material is prepared by preparing a gel from a solution of the resin in a solvent, and pyrolyzing the resin gel in oxygen by heating the gel to a temperature above approximately 400° C. for about two hours.Type: GrantFiled: July 19, 1999Date of Patent: February 6, 2001Assignee: Dow Corning CorporationInventor: Udo C. Pernisz