Patents Examined by D. E. Aylward
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Patent number: 5169906Abstract: A film-forming copolymer is formed by copolymerising 100 parts of a curable polyurethane resin and 10 to 100 parts of an organosilicon compound, consisting essentially of SiO.sub.2, R.sub.3 SiO.sub.1/2 and R'R.sub.2 SiO.sub.1/2 units, the ratio of monovalent units to tetravalent units being from 0.4/1 to 2/1 and from 40 to 90% of and monovalent units being R'R.sub.2 SiO.sub.1/2 units. R is a monovalent hydrocarbon group having up to 8 carbons and R' denotes a OH-terminated polyoxyalkylene group. The invention also includes a method of making fabrics waterproof and permeable to water vapor by coating it with such copolymer.Type: GrantFiled: March 21, 1991Date of Patent: December 8, 1992Assignee: Dow Corning LimitedInventors: Stephen E. Cray, Martin Rowlands
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Patent number: 5166298Abstract: An oxygen-permeable transparent polymer composition for contact lenses of the rigid type comprises at least a first constituent having ethylene double bonds of the type which is polymerizable in a rigid matrix, and a second constituent formed by a silane monomer containing at least two silyl -SiH groups per molecule. The composition can include a third constituent of the polyorganosiloxysilane type.Type: GrantFiled: January 18, 1990Date of Patent: November 24, 1992Assignee: Essilor International (Compagnie Generale d'Optique)Inventors: Gilbert Friedmann, Pascal Sperry, Jean Brossas
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Patent number: 5145912Abstract: An efficient method for preparing an oximosilane-functional vinylic copolymer is disclosed wherein the corresponding alkoxysilane-functional vinylic copolymer is reacted with an organoketoxime in a dry environment. The oximosilane-functional vinylic copolymers produced by the method of the present invention find utility in moisture-curable coating systems.Type: GrantFiled: December 17, 1990Date of Patent: September 8, 1992Assignee: Dow Corning CorporationInventors: Dale E. Hauenstein, Harold L. Vincent
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Patent number: 5124404Abstract: Described are polypropylene molding compositions which have surprisingly good physical properties in combination with flame retardancy, which include copolymers represented by the formula: ##STR1## wherein n is >1, P is isotactic or syndiotactic polypropylene, and S is a grafted side chain having brominated monomeric units of the formula: ##STR2## wherein x=1 to 4, R.sub.1 is H or CH.sub.3, and R.sub.2 is H or a C.sub.1-4 lower alkyl group. Polymer blends including such graft copolymers and methods for making such flame retardant polymer compositions are also described.Type: GrantFiled: August 21, 1990Date of Patent: June 23, 1992Assignee: Great Lakes Chemical Corp.Inventors: Ray W. Atwell, Donna L. Collison, Nicolai A. Favstritsky, Harry A. Hodgen, Enrico J. Termine
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Patent number: 5112919Abstract: A process for producing a polymer crosslinkable by exposure to moisture in the presence of a hydrolysis/condensation catalyst comprising blending (i) a thermoplastic base polymer, (ii) a solid carrier polymer containing a silane, and (iii) a free radical generator; heating and mixing (i), (ii) and (iii) together at a temperature above the crystalline melting point of said base polymer; optionally, a free-radical generator, hydrolysis/condensation catalyst, and other additives are contained in the solid carrier polymer.Type: GrantFiled: October 30, 1989Date of Patent: May 12, 1992Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Willy Furrer, Jacques J. F. J. Schombourg
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Patent number: 5102941Abstract: Disclosed is a thermoplastic polyester resin composition, which comprises (A) 99-60 parts by weight of a thermoplastic polyester resin, (B) 1-40 parts by weight of a polyorganosiloxane rubber, (C) 0.01-10 parts by weight, per 100 parts by weight of the sum of the components (A) and (B), of an organic silane compound having at least one functional group selected from the group consisting of an epoxy group, and isocyanate group and an amino group, and (D) 0-300 parts by weight, per 100 parts by weight of the sum of the components (A) and (B), of a reinforcing filler. This composition results in a shaped article having an improved impact resistance while retaining good heat stability and weatherability inherently possessed by the thermoplastic polyester.Type: GrantFiled: April 18, 1990Date of Patent: April 7, 1992Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Naoki Yamamoto, Hiroshi Mori, Akira Nakata
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Patent number: 5093428Abstract: Disclosed are an anionic matte electrodeposition coating composition containing, as a vehicle component, a polymer obtained by radical polymerization of a vinyl monomer comprising an alkoxysilane group-containing vinyl monomer as an essential component in the presence of a fluorocarbon polymer, and a process for forming a matte film which comprises coating the coating composition onto an aluminum material by electrodeposition coating.Type: GrantFiled: December 14, 1989Date of Patent: March 3, 1992Assignee: Kansai Paint Co., Ltd.Inventors: Hiroyuki Negishi, Shinji Shirai
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Patent number: 5093423Abstract: A method of making a thermoplastic elastomer composition produced by dynamic vulcanization of SBR as a dispersed phase of cross linked SBR, and a co-continuous matrix of SEBS and polypropylene. The dynamic vulcanization step takes place under conditions of shear and temperature to reach the decomposition point of crosslinked SBR, at which time the crosslinking reaction is quenched. Compositions of superior properties are achieved using this method.Type: GrantFiled: September 24, 1990Date of Patent: March 3, 1992Assignee: The West Company, IncorporatedInventors: Ghawamedin Bayan, Anthony S. Esposito
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Patent number: 5091476Abstract: The fire retardant properties of polycyanates are improved by blending them with a brominated homopolymer or brominated interpolymer of styrene or alkyl- or halo-substituted styrene without an unacceptable sacrifice in the physical, thermal, electrical and moisture resistance properties.Type: GrantFiled: April 27, 1990Date of Patent: February 25, 1992Assignee: The Dow Chemical CompanyInventor: Georgia A. Monnerat
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Patent number: 5089556Abstract: Ethylene polymers grafted with dicarboxylic acid functionality have synergistically improved adhesive properties and acquire heatability employing RF electromagnetic radiation when blended with a carbon monoxide-containing ethylene polymer. The dicarboxylic acid grafted and carbon monoxide-containing ethylene polymers and blends thereof are particularly useful as adhesive layers in laminate structures where RF heat sealing methods can be employed.Type: GrantFiled: December 28, 1989Date of Patent: February 18, 1992Assignee: The Dow Chemical CompanyInventors: Ricky L. Tabor, Chad A. Strait, Gerald M. Lancaster
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Patent number: 5086124Abstract: A heat curable cyclic epoxy siloxane/organic opoxy resin blend which will polymerize to form a composition having a high heat distortion temperature, the blend comprising:(A) a tetraorganotetraepoxy cyclic siloxane monomer;(B) an organic epoxy resin, the ratio of parts of (A) to parts of (B) being from about 10:1 to about 1:1;(C) from about 2.5 to about 3.0 weight percent, based on the combined weight of (A) and (B), of a cationic onium salt catalyst; and(D) from about 0.25 to about 0.30 weight percent, based on the combined weight of (A) and (B), of a copper salt cocatalyst.Type: GrantFiled: July 5, 1990Date of Patent: February 4, 1992Assignee: General Electric CompanyInventors: James M. Fukuyama, Julia L. Lee
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Patent number: 5084527Abstract: A thermoplastic resin composition comprising: (A) at least one resin selected from the group consisting of a polyester resin and a polycarbonate resin, and (B) an aromatic polyester-polyorganosiloxane block copolymer, a weight ratio of (A) and (B) (=A/B) being 10/90 to 90/10. With the addition of the copolymer (B), impact strength of the composition can be improved without impairing the properties of the resin (A).Type: GrantFiled: February 6, 1990Date of Patent: January 28, 1992Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Naoki Yamamoto, Hiroshi Mori, Akira Nakata, Misayo Suehiro
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Patent number: 5082916Abstract: An organopolysiloxane graft-type polyester is prepared by reacting, in the presence of an effective amount of a hydrosilylation catalyst, a polyester containing at least one alkenyl group and having no unsaturated terminal groups, said polyester having a number average molecular weight of about 500 to about 5,000, and an organopolysiloxane containing one hydrosilyl group. The organopolysiloxane graft-type polyester has excellent compatibility with polyesters and can improve the surface smoothness and hydrophobic property of the polyester when modified therewith.Type: GrantFiled: May 11, 1990Date of Patent: January 21, 1992Assignee: Dow Corning Toray Silicone Company, Ltd.Inventors: Ryuzo Mikami, Makoto Yoshitake, Tadashi Okawa
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Patent number: 5061764Abstract: A moldable and/or extrudable poly(enamine ketone-co-alkylene ether) block copolymer is disclosed which has the formula shown below: ##STR1## wherein R' is H or alkyl, alkoxyl, cycloalkyl, cycloalkoxyl and aryl and aryloxyl, A is a poly(enamine ketone) sequence and B is a polyalkylene ether sequence. The poly(enamine ketone-co-alkylene ether) block copolymer is preferably prepared under mild condition by reacting a bispropynone with an amine-terminated poly(alkylene ether); a bispropynone with an organic diamine and an amine-terminated poly(alkylene ether); or by reacting a preformed propynone-terminated poly(enamine ketone) with an amine-terminated poly(alkylene ether).The compolymers have excellent mechanical properties, are moldable and extrudable and are useful for the manufacture of articles such as films, sheaths, fibers for textile products, and other moldable and/or extrudable articles and RIM shaping. These materials are also useful as bonded or welded linings and as hot-melt adhesives.Type: GrantFiled: June 20, 1989Date of Patent: October 29, 1991Assignee: University of AkronInventors: Frank W. Harris, David D. Russell
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Patent number: 5061758Abstract: An unsaturated elastomeric, asymmetrically coupled block copolymer of the formula: (A).sub.n -X-(B).sub.m, wherein block A is a block of polybutadiene having a content of uniformly distributed vinyl groups ranging from 8 to 60% and block (B) is a homopolymer of isoprene or a copolymer of at least 10% isoprene with 0 to 60% butadiene and up to 45% styrene, the copolymer having a vinyl unit content of 75 to 90%, X is a radical of a coupling agent and (m-n).gtoreq.0 and (m+n) ranges from 3 to 25.Type: GrantFiled: October 5, 1989Date of Patent: October 29, 1991Assignee: Huels AktiengesellschaftInventors: Walter Hellermann, Christoph Herrmann, Karl-Heinz Nordsiek, Jurgen Wolpers, Hans-Bernd Fuchs
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Patent number: 5053457Abstract: A coextrudable adhesive composition comprises a blend of (a) a copolymer of ethylene with alkyl acrylate or methacrylate comonomer and a grafted comonomer containing pendant carboxylic acid or carboxylic acid derivative functionality, and (b) a copolymer of ethylene with at least one comonomer selected from the group consisting of alpha olefins, nonconjugated dienes, vinyl esters of carboxylic acids, styrene, alkyl acrylates, and alkyl methacrylates, wherein component (b) is incompatible with component (a).Type: GrantFiled: June 13, 1989Date of Patent: October 1, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: I-Hwa Lee
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Patent number: 5049618Abstract: The present invention relates to vulcanizable rubber compositions containing a methylene donor and a hydroxy-aryl substituted monomaleimide. The substituted monomaleimides may be used as a replacement for resorcinol and function as a methylene acceptor. The vulcanizable rubber compositions exhibit improved rubber/reinforcement interaction for increased adhesion and tear in rubber. These vulcanizable rubber compositions also contain a vulcanizing agent.Type: GrantFiled: September 5, 1989Date of Patent: September 17, 1991Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson G. Wideman, Paul H. Sandstrom
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Patent number: 5043398Abstract: Novel oxymethylene graft polymers are obtained by grafting a functional compound (i.e., a polymer or compound having one or two hydroxyl, carboxyl, or amine functional groups) onto an oxymethylene backbone having pendant hydroxyl groups which serve as reactive sites for the graft reaction with diisocyanate coupling agents.Type: GrantFiled: May 12, 1989Date of Patent: August 27, 1991Assignee: Hoechst Celanese CorporationInventors: Andrew B. Auerbach, Jerry A. Broussard, Nan L. Yang, James L. Paul