Two Or More Si Atoms And At Least One Si-c Or Si-h Group Patents (Class 524/267)
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Patent number: 5154974Abstract: Adhesives compositions having improved cutting properties described herein. Compositions comprise a normally tacky, pressure sensitive acrylic adhesive containing, as an additive to reduce edge flow, from about 2 to about 10 percent by weight dry basis, preferably from about 5 to about 8 percent by weight dry basis based on the weight of polymer solids, of a polydimethylsiloxane having a number average molecular weight of about 1300 to about 15000. Also disclosed are laminates comprising a facing layer coated on one side with the aforedescribed adhesive composition, and optionally a release liner. These adhesive laminates exhibit substantially reduced tendency of the adhesive to ooze at the edge when cut, without material decrease in other adhesive properties, when a multiplicity of laminate sheets is stacked and cut by means of a guillotine. Laminates herein are especially useful as drum and carton labels.Type: GrantFiled: September 29, 1989Date of Patent: October 13, 1992Inventors: Alfred W. Norman, Carolyn M. Ricci
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Patent number: 5153251Abstract: The incorporation of silicone treated filler selected from carbon black, titanium dioxide or clay into polycarbonates or polyester carbonates has been found to provide polycarbonate compositions having improved flame retardant properties.Type: GrantFiled: June 13, 1991Date of Patent: October 6, 1992Assignee: General Electric CompanyInventors: John H. Lupinski, Christopher M. Hawkins
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Patent number: 5149762Abstract: A silicon-modified thermoplastic resin is prepared by heating a mixture comprised of 10 to 90% by weight of an imide group-containing thermoplastic resin and 90 to 10% by weight of a modified silicon compound having an amino group--NH.sub.2 at one end of the molecule and an alkyl group --C.sub.n H.sub.2n+1 (n is an integer of at least 1) at the other end of the molecule, to chemically bond the imide group-containing thermoplastic resin to the modified silicon compound.Type: GrantFiled: November 8, 1989Date of Patent: September 22, 1992Assignee: Mitsubishi Rayon Company Ltd.Inventors: Yoshio Murashige, Junko Soga
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Patent number: 5145932Abstract: A curable organopolysiloxane composition comprising an organopolysiloxane having higher alkenyl groups, an organohydrogenpolysiloxane crosslinker, and organopolysiloxane free of alkenyl groups and silicon-bonded hydrogen atoms, a platinum group metal-containing catalyst and an inhibitor therefor provides for the formation of a cured release film. When this composition is coated on the surface of any of various types of substrates, for example, paper, synthetic resin films, fibers, etc., and then heated for 10 to 20 seconds at 80 to 90 degrees Centigrade, it forms a cured film which manifests an extremely good release performance for tacky substances, such as, for example, pressure-sensitive adhesives, and the like, while at the same time evidencing an excellent adherence to the substrate itself. The compositions can be used with synthetic resin films, such as polyolefin, which are easily deformed by heat and with poorly heat-tolerant paper.Type: GrantFiled: November 21, 1989Date of Patent: September 8, 1992Assignee: Toray Silicone Company, Ltd.Inventors: Shosaku Sasaki, Hiroshi Masaoka
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Patent number: 5143959Abstract: A novel composition for use in chlorinated polymers comprising:a) dawsonite, hydrotalcite or a mixture thereof,b) a (.gamma.-hydroxyalkyl)polyorganosiloxane oil,c) an organic zinc compound, andd) an organic calcium, magnesium, barium or lanthanide compound, or a mixture thereof is disclosed,The presence of the polyorganosiloxane oil enables the content of epoxidized oils to be decreased while preserving the thermal stability of the polymer composition.The impact strength of shaped articles prepared from polymers containing compositions of the present invention is also enhanced.Type: GrantFiled: April 19, 1991Date of Patent: September 1, 1992Assignee: Rhone-Poulenc ChimieInventors: Louis Carette, Gerard Velleret
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Patent number: 5132350Abstract: A composition useful in the manufacture of cable comprising:(i) a copolymer comprised of ethylene and vinyl acetate;(ii) a surface treated magnesium hydroxide having (a) a strain in the <101> direction of not more than 3.0.times.10.sup.-3 ; (b) a crystallite size in the <101> direction of more than 800 angstroms; and (c) a surface area, determined by the BET method, of less than 20 square meters per gram; and(iii) a silicone fluid.Type: GrantFiled: July 13, 1990Date of Patent: July 21, 1992Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Michael J. Keogh
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Patent number: 5132349Abstract: A preparation process of a phenol-based resin composition by conducting a crosslinking reaction of a specific silicone compound in the phenol-based resin in the presence of a specific emulsifier, crosslinking agent and catalyst and by the addition of water to disperse resulting silicone rubber as fine particles in the phenol-based resin.The phenol-based resin of the invention has no time-dependent variation in molding processability and molded products are stable and has no time-dependent change in impact resistance, flexural strength and thermal shock resistance (heat crack resistance), and hence the phenol-based resin composition is used for various molding materials and friction materials which require excellent mechanical strength, crack resistance, thermal shock resistance, stress relaxation resistance or abrasion resistance.Type: GrantFiled: May 7, 1991Date of Patent: July 21, 1992Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Shigeru Iimuro, Masahiko Asano, Toshimiki Shimizu
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Patent number: 5115007Abstract: The present invention relates to a primerless, one-part, storage stable, fast heat curable, abrasion-resistant coating composition useful as a low friction coating for an EPDM glass run channel in vehicles or similar applications. The coating composition comprises a blocked polyurethane prepolymer, a coreactive crosslinking agent, and a compatible silicone oil. The blocked polyurethane is desirably made from a hydroxyl terminated hydrogenated diene polymer or polyolefin, which is reacted with excess equivalents of a polyisocyanate reactant and the isocyanate groups blocked with a blocking agent. The cured polyurethane has very good abrasion resistance.Type: GrantFiled: February 21, 1991Date of Patent: May 19, 1992Assignee: GenCorp Inc.Inventors: Kohji Y. Chihara, Gerd M. Lenke
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Patent number: 5106922Abstract: A polymethylsilsesquioxane powder surface-treated with an organosilicone compound represented by the formula:(R.sup.1.sub.a R.sup.2.sub.3-a Si).sub.b Zwherein R.sup.1 represents an alkyl group substituted by a perfluoroalkyl group; R.sup.2 represents an unsubstituted monovalent hydrocarbon group; a is an integer of from 1 to 3; b is 1 or 2; and when b is 1, Z is selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxyl group, --OR.sup.3, --NR.sup.3 X, --ON(R.sup.3).sub.2 and --OCOR.sup.3, and when b is 2, Z is selected from the group consisting of --O--, --N(X)-- and --S--, in which R.sup.3 represents an alkyl group having 1 to 4 carbon atoms and X is selected from the group consisting of a hydrogen atom and an alkyl group having 1 to 4 carbon atoms.Type: GrantFiled: December 1, 1989Date of Patent: April 21, 1992Assignee: Toshiba Silicone Co., Ltd.Inventors: Kenji Saito, Hiroshi Kimura, Hideaki Muto
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Patent number: 5102695Abstract: Clear, abrasion resistant, tintable coating compositions which are based on siloxane/silica hybrid coating resins and which also contain at least about 3 weight percent and up to about 30 weight percent of a tintability enhancing compound comprising at least one alkylated amine formadehyde compound. These coating compositions are especially useful for providing both abrasion resistance and high levels of tinting.Type: GrantFiled: November 14, 1990Date of Patent: April 7, 1992Assignee: Swedlow, Inc.Inventors: Allen M. Guest, Martin W. Preus, William Lewis
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Patent number: 5089547Abstract: A cross-linked low surface adhesion composition, that can be utilized as either an electrographic toner powder or as an additive for conventional electrographic toner powder, exhibits improved transfer and contributes to an increase in the useful life of the developer. The low surface adhesion composition employs a silicone resin and a polyester resin cross-linked with a polyfunctional epoxy novolac resin.Type: GrantFiled: August 6, 1990Date of Patent: February 18, 1992Assignee: Eastman Kodak CompanyInventors: John M. McCabe, John C. Wilson
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Patent number: 5085695Abstract: An essentially wax-free cleaner-polisher composition that cleans while maintaining excellent gloss and superior protection against water and a mixture of alcohol and water damage in a one-step application is described. The composition comprises about, a) 30% to 90% water, b) 1 to 4% by weight acrylate polymer, c) 4% to 12% co-solvent and/or 0.5% to 6% surface active agents, d) 4-40 silicone oil and/or mineral oil and optically, e) 0 to 3 percent by weight of fluoroalkyl polymer, f) 0 to 0.5% a fragrance, and g) 0 to 5 percent by weight of a wax emulsion.Type: GrantFiled: July 13, 1990Date of Patent: February 4, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Neil A. Randen, Vinu Patel
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Patent number: 5082735Abstract: A process of curing and cross-linking methylhydrosiloxanes by contacting and forming a mixture of an allyl amide with at least one methylhydrosiloxane in the presence of a Group VIII metal catalyst, and heating the mixture of the allyl amide, the methylhydrosiloxane, and the Group VIII metal catalyst, in the presence of ambient moisture until the methylhydrosiloxane becomes cured and cross-linked.Type: GrantFiled: May 4, 1990Date of Patent: January 21, 1992Assignee: Dow Corning CorporationInventors: Anthony Revis, William H. Campbell
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Patent number: 5082894Abstract: The combination of (1) long term storage stability, (2) a relative short cure time at temperatures below about 150.degree. C. and (3) cohesive bonding of the cured elastomer to a variety of substrates is achieved in a one-part organosiloxane composition that cures by a platinum-catalyzed hydrosilylation when the composition includes an acetylenic alcohol containing at least eight carbon atoms as the catalyst inhibitor and, as the adhesion promoter, an alkoxysilane containing an epoxy group and a polyorganosiloxane containing an average of at least one silicon-bonded hydroxyl group and at least one silicon-bonded vinyl radical per molecule. The concentrations of catalyst and adhesion promoter are within specified limits.Type: GrantFiled: March 19, 1990Date of Patent: January 21, 1992Assignee: Dow Corning CorporationInventors: Bernard VanWert, Dawn M. Houghtaling
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Patent number: 5080976Abstract: A blade comprising a polymeric elastomer containing a low surface energy compound, wherein the low surface energy compound exists in the polymeric elastomer as primary particles with an average particle size of 1 .mu.m or less or the low surface energy compound is in a mutually dissolved state in the polymeric elastomer, and a method for preparation thereof.A blade comprising a molded product obtained by curing a silicone-modified prepolymer formed by the reaction of a polyurethane prepolymer and silicone oil in a solvent, and a method for preparation thereof.Type: GrantFiled: February 14, 1989Date of Patent: January 14, 1992Assignee: Canon Kabushiki KaishaInventors: Noriyuki Yanai, Masahiro Watabe
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Patent number: 5066714Abstract: A curable organopolysiloxane putty-like composition comprising an organopolysiloxane having at least two alkenyl groups in one molecule, an organohydrogenpolysiloxane having at least three .tbd.SiH groups, a catalytic amount of platinum or a platinum compound, and an inorganic filler. This composition further comprises an organopolysiloxane modified with an alkyl group directly bonded to silicon atoms and having from 7 to 30 carbon atoms whereby the modified organosiloxane serving as an oil properly exudes prior to curing but does not exude appreciably after the curing. The composition is suitable particularly for impressions.Type: GrantFiled: October 17, 1989Date of Patent: November 19, 1991Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yoshio Inoue, Masachika Yoshino, Hironao Fujiki
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Patent number: 5051467Abstract: A silicon rubber composition comprising (I) a vinyl-containing diorganopolysiloxane, (II) an organohydrogenpolysiloxane, and (III) platinum or a platinum compound is improved in adhesive bond to various substrates under low-temperature curing conditions by blending (IV) an ester siloxane compound free of a silicon-to-carbon bond and (V) an epoxy-containing polysiloxane compound.Type: GrantFiled: November 27, 1989Date of Patent: September 24, 1991Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hiroshige Okinoshima, Tsutomu Kashiwagi
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Patent number: 5047472Abstract: Thermoplastic molding compositions are provided which comprise a polyphenylene ether resin alone or in combination with a polystyrene resin modified with a multi-stage polyorganosiloxane/polyvinyl-based graft polymer which exhibit materially enhanced impact strength, flame resistance, moldability and flow properties and other desirable properties without showing surface mottling or a tendancy to delaminate.Type: GrantFiled: November 14, 1988Date of Patent: September 10, 1991Assignee: General Electric CompanyInventors: Muhanad A. Alsamarraie, William R. Haaf, Warren J. Peascoe, I-Chung W. Wang
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Patent number: 5039724Abstract: A process for preparing aqueous emulsions from high-molecular-weight organopolysiloxanes which are solid at room temperature, in the absence of organic solvents, which comprises dissolving the high-molecular-weight organopolysiloxane which is solid at room temperature in a low-molecular-weight organo(poly)siloxane which is liquid at room temperature, and emulsifying this solution with water in the presence of an emulsifier and other additives, if desired.Type: GrantFiled: October 23, 1989Date of Patent: August 13, 1991Assignee: Wacker-Chemie GmbHInventors: Ulrich Demlehner, Bernward Deubzer, Hans Mayer, Erich Pilzweger
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Patent number: 5039714Abstract: A high-gloss, impact-resistant rubber-modified polystyrene composition, characterized in that said rubber-modified polystyrene consists essentially of(i) a polystyrene,(ii) dispersed particles of elastomeric polymers, and optionally polydimethylsiloxane and at least one member selected from the group consisting of mineral oil, and metallic salts or amides of higher fatty acids based on the total weight of the composition.Type: GrantFiled: April 10, 1989Date of Patent: August 13, 1991Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Hideo Kasahara, Masashi Sakamoto, Hiroaki Ishikawa, Kiyoshi Maeda
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Patent number: 5037873Abstract: There is provided aqueous silane emulsion compositions comprising hydrolyzable silanes, water thickening agents, water and optional buffers, biocides and water beading additives. The compositions are useful in rendering porous masonry substrates water repellent.Type: GrantFiled: August 8, 1989Date of Patent: August 6, 1991Assignee: PCR Group, Inc.Inventor: Thomas F. Heaton
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Patent number: 5036123Abstract: Straight oil compositions for fibrous materials, which provide excellent smoothness and antistatic properties and also have excellent spearation resistance, even without compatibilizers, comprise (A) 100 parts by weight of dimethyl polysiloxane having a viscosity of from 3 to 30 cSt at 25.degree. C. and (B) 0.5 to 50 parts by weight of a polyoxyalkylene group-terminated organopolysiloxane. The polyoxyalkylene groups of Component (B) have a block structure of polyoxypropylene and polyoxyethylene units, with the former being bonded to the siloxane moiety. Component (A) is preferably a trimethylsiloxy-terminated polydimethylsiloxane.Type: GrantFiled: October 24, 1989Date of Patent: July 30, 1991Assignee: Toray Silicon Company, LimitedInventors: Masaru Ozaki, Isao Ona
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Patent number: 5032636Abstract: Organosilicon compounds of a novel class are disclosed including .alpha.,.omega.-bis(alkoxy silyl)-substituted alkane compounds represented by the general formula(RO).sub.m (CH.sub.3).sub.3-m Si--CH.sub.2).sub.n Si(CH.sub.3).sub.3-m (OR).sub.m,in which R is a monovalent hydrocarbon group having 1 to 4 carbon atoms, e.g., methyl and ethyl, the subscript n is a positive integer in the range from 10 to 18 and the subscript m is 1, 2 or 3. The compound is useful as an additive in various kinds of synthetic resin-based compositions for the purpose of improving the properties such as flexibility, weatherability, cold resistance and mechanical strengths.Type: GrantFiled: February 13, 1990Date of Patent: July 16, 1991Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Ichiro Ono, Hiroshi Yoshioka
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Patent number: 5025053Abstract: Linear and cyclic diorganopolysiloxanes containing dibenzoylmethane functional groups are well suited for the coating of optical fibers and for lubricating plastics, e.g., PVC.Type: GrantFiled: August 4, 1989Date of Patent: June 18, 1991Assignee: Rhone-Poulenc ChimieInventors: Edith Canivenc, Serge Forestier, Michel Gay, Gerard Lang, Herve Richard
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Patent number: 5025054Abstract: A polish including a film forming wax material and a silicone rubber. The rubber is in the form of particles mixed with the film forming wax, and the silicone rubber particles contain a silicone oil. The particles have an average diameter of from about 0.3 .mu.m to about 30 .mu.m. The polish includes at least one additive selected from the group consisting of organic solvents, a second silicone oil, and surfactants. The film forming wax material is one of carnauba wax, montan wax, candelilla wax, ceresin wax, paraffin waxes, or beeswax. The silicone rubber forming the particles is one of addition reaction curable silicone rubber compositions, condensation reaction curable silicone rubber compositions, organic peroxide curable organopolysiloxane compositions, or high energy curable silicone rubber compositions.Type: GrantFiled: November 9, 1989Date of Patent: June 18, 1991Assignee: Toray Silicone Company, LimitedInventors: Keiji Yoshida, Mitsuo Hamada
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Patent number: 5017634Abstract: An in-mold lacquer coating for producing a polyurethane-based molded article. The lacquer coating is mold-releasable without the aid of an external mold release agent, is re-coatable after de-molding without additional surface preparation, and comprising a mixture of a pre-reacted aliphatic polyurethane resin, a polydimethylsiloxane fluid mold-release agent, and an aromatic, acetate and alcoholic solvent system that is incompatible with the polydimethylsiloxane and that has constituents with specific gravities less than the polydimethylsiloxane and with varying rates of evaporation such that the ratio of aromatic to acetate and alcoholic solvents decreases as the solvent system evaporates.Type: GrantFiled: July 10, 1989Date of Patent: May 21, 1991Assignee: Moline Paint Manufacturing Co.Inventors: Brian J. Falline, Bruce W. Weihrauch
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Patent number: 5009811Abstract: A conducting varnish composition consisting essentially of:(a) a tetracyanoquinodimethane complex salt;(b) a high molecular weight compound;(c)(i) at least one compound selected from the group consisting of acetals, orthoformic acid esters, orthoacetic acid esters, orthocarbonic acid esters, siloxanes, silyl ethers and orthosilicic acid esters; and/or(ii) a surfactant or a silicone oil; and(d) a solvent.the TCNQ complex salt is stable in a solution of the composition according to the present invention and the composition can be stored for a long period of time. Therefore, it provides a conducting material which exhibits a constant conductivity. Also, the composition of the present invention is excellent in the film-formability and moldability, and can be formed into a film or an article of good quality, that is, having no incomplete part.Type: GrantFiled: March 9, 1989Date of Patent: April 23, 1991Assignee: Nitto Chemical Industry Company, Ltd.Inventors: Tomio Nakamura, Shigeru Shimizu, Kikuko Takeuchi
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Patent number: 5004774Abstract: A thermosetting polymide resin composition having an excellent molding processing property, heat resistance, low mold shrinkage, and good external appearance of its manufacture which comprises a modified bismaleimide resin prepared by reacting the Michael addition reaction of bismaleimides with aromatic primary diamines and aromatic secondary diamines, an inorganic filler, silicone oil, and a mixed catalyst composed of organic peroxides and imidazoles.Type: GrantFiled: December 23, 1988Date of Patent: April 2, 1991Assignee: Lucky, Ltd.Inventors: Jong K. Yeo, Chung S. Kim, Dong J. Lee, Sung H. Jang
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Patent number: 5000029Abstract: Resilient, crosslinked silicone elastomers shaped as elastoforming dies or form blocks for the stamping of sheet material workpieces, e.g., ultra-thin sheet metal, and well adopted for applications in the automotive industry, comprise a crosslinked fluid organopolysiloxane including at least one silicone-compatible organic or inorganic plasticizer within the crosslinked network thereof, said at least one plasticizer being stable and nonmigrating under elastoforming stamping conditions, and said at least one plasticizer being present in such amount that said plasticized silicone elastomer has a Shore 00 hardness of less than about 40.Type: GrantFiled: March 5, 1990Date of Patent: March 19, 1991Assignee: Rhone-Poulenc ChimieInventors: Claude Laurent, Paul Rostaing, Rene Lyobard
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Patent number: 4996088Abstract: An improved shelf life composition useful as adhesives and, especially, pressure sensitive adhesives is made by mixing an acrylic composition with a catalyst of the tin type and a non-reactive silicone composition essentially free of hydroxyl and hydrogens on the silicon atoms and of the formula shown hereinafter.Type: GrantFiled: September 26, 1988Date of Patent: February 26, 1991Assignee: Morgan Adhesives Co.Inventors: Gerald H. Knittel, Stanley D. Smith, Richard C. Spector, Jack M. McClintock
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Patent number: 4996112Abstract: Organopolysiloxane compositions that are storage-stable under anhydrous conditions, but curable into elastomeric state in the presence of moisture and, thus, are well suited as sealants and coatings and which particularly strongly adhere to substrates used in the construction industry, contain at least one .alpha., .omega.-dihydroxydiorganopolysiloxane polymer; at least one ketiminoxysilane crosslinking agent therefor; a bonding agent including admixture, or reaction product of, (i) an aminoorganosilicon compound containing a primary amine group, with (ii) an organosilicon compound containing an epoxy functional group; and, advantageously, a filler material and a curing catalyst.Type: GrantFiled: April 7, 1989Date of Patent: February 26, 1991Assignee: Rhone-Poulenc ChimieInventors: Patrice Perrin, Andre Pierron
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Patent number: 4992497Abstract: The present invention relates to glass filled poly(arylene sulfide) molding compositions which upon being molded result in products having improved mechanical properties. Methods of preparing the compositions, methods of using the compositions to form molded products and the molded products so produced are also provided. The compositions are comprised of poly(arylene sulfide) resin, glass reinforcement material, an epoxysilane and an organic phosphite.Type: GrantFiled: April 10, 1989Date of Patent: February 12, 1991Assignee: Phillips Petroleum CompanyInventor: Roy F. Wright
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Patent number: 4990552Abstract: A silicone oil used, for example, as an electric insulation oil can be imparted with greatly increased flame retardancy when it is compounded with a soluble platinum compound, e.g., chloroplatinic acid, and an alkynyloxy, e.g., ethynyloxy, containing compound or, in particular, an ethynyloxy-containing organosilicon compound. The heat resistance of the silicone oil composition can be further improved by admixing the composition with an organosilicon compound having at least one imino-containing aromatic group such as a 4-anilinophenoxy group bonded to the silicon atom.Type: GrantFiled: January 25, 1989Date of Patent: February 5, 1991Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shigeru Mori, Satoshi Kuwata, Motohiko Hirai
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Patent number: 4990560Abstract: A curable organopolysiloxane composition comprising a vinyl-containing organopolysiloxane, organohydrogenpolysiloxane and platinum catalyst is proposed which is cured into a gel-like material suitable as a potting and encapsulating agent for protecting, for example, electronic components from mechanical shocks and adverse influence of the ambient atmosphere. Different from conventional similar compositions, the gelled material from the inventive composition little suffers from the problem of bleeding of oily materials contained therein on the surface.Type: GrantFiled: August 16, 1989Date of Patent: February 5, 1991Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Hironao Fujiki
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Patent number: 4987170Abstract: A styrene resin composition excellent in sliding properties which comprises 100 parts by weight of a styrene polymer, 2.0 to 4.0 parts by weight of dimethylsilicone oil having a viscosity ranging from 5,000 to 15,000 centistokes at 25.degree. C. and 0.05 to 8 parts by weight of maleic anhydride monomer or 0.05 to 50 parts by weight of a maleic anhydride-styrene copolymer containing at least 5% by weight of maleic anhydride monomer units is herein disclosed. The styrene resin composition is excellent in sliding properties and thus does not provide a molded product having poor appearance during molding. The styrene resin composition is used to form mechanical parts in the fields of household appliances and office automation apparatuses.Type: GrantFiled: September 8, 1989Date of Patent: January 22, 1991Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Yuzuru Ishida, Masahiro Mitsuboshi, Haruo Inoue, Ichiro Otsuka, Keiji Iio
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Patent number: 4987169Abstract: A method of preparing a uniform silicone composition, comprising treating under the application of a shearing force a polymeric product obtained by addition polymerization of (A) an organhydrogenpolysiloxane containing in its molecule from 1.5 to 5 silicon-bonded hydrogen atoms on average, said silicon-bonded hydrogen atoms being in an amount of from 1 to 20 mol %, based on the total of the silicon-bonded hydrogen atoms and silicon-bonded organic groups in the molecule; and (B) an organopolysiloxane containing in its molecule from 1.5 to 5 silicon-bonded aliphatic unsaturated groups on average; in the presence of from 10 to 1,000 parts by weight of low-viscosity silicone oil having a viscosity of not more than 100 cSt at 25.degree. C. based on 100 parts by weight of the total amount of said (A) and (B).Type: GrantFiled: April 21, 1989Date of Patent: January 22, 1991Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Satoshi Kuwata, Koji Sakuta, Shigeru Mori
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Patent number: 4985476Abstract: Polydiorganosiloxane compositions which are stable in storage with exclusion of moisture and which are curable with water or atmospheric air are useful to produce paintable joint sealing compounds and coating composition and the composition is a mixture of .alpha., .omega.-dihydroxy-polydiorganosiloxanes, carboxylic acid amido alkylalkoxy silicon compounds as cross-linking agents, complex titanic acid esters and filler which comprises a precipitated, hydrophobicized chalk whose residual moisture has been removed before contact with the titanic acid esters and cross-linking agents in the mixture.Type: GrantFiled: October 17, 1989Date of Patent: January 15, 1991Assignee: Bayer AktiengesellschaftInventors: Robert Endres, Wilhelm Weber, Krystyna Preuss
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Patent number: 4980231Abstract: Processes for treating polymeric surfaces to produce smooth, durable, slippery coatings which are able to withstand the rigors of sterilization and, long term exposure to human blood and other bodily fluids without substantial loss of their slipperiness. An article or device suitable as a wound drainage device coated in accordance with the process described is also disclosed.Type: GrantFiled: February 13, 1989Date of Patent: December 25, 1990Assignee: Snyder Laboratories, Inc.Inventors: John H. Baker, Kim R. Harmon
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Patent number: 4978704Abstract: Organopolysiloxane compositions that are storage-stable under anhydrous conditions, but curable into elastomeric state in the presence of moisture and, thus, are well suited as sealants and coatings and which particularly strongly adhere to substrate used in the construction industry, contain at least one .alpha., .omega.-dihydroxydiorganopolysiloxane polymer; at least one acyloxysilane crosslinking agent therefor; a bonding agent including admixture, or reaction product of, (i) an aminoorganosilicon compound containing a primary amine group, with (ii) an organosilicon compound containing an epoxy functional group; and, advantageously, a filler material and a curing catalyst.Type: GrantFiled: April 7, 1989Date of Patent: December 18, 1990Assignee: Rhone-Poulenc ChimieInventor: Patrice Perrin
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Patent number: 4977308Abstract: A heat roller type fixing device having a fixing roller and a pressing roller and applicable to an electrophotographic copier or like image forming apparatus, and a method of producing the same. The pressing roller is produced such that the content of 3- to 15-mer, preferably 3- to 10-mer, low-molecular weight siloxanes (oligomers) which are contained in the roller is less than 300 parts per million. While the fixing device is in operation, chargers built in the image forming apparatus are prevented from being whitened by pologomers which are evaporated from the pressing roller.Type: GrantFiled: June 20, 1988Date of Patent: December 11, 1990Assignee: Ricoh Company, Ltd.Inventor: Setsuo Soga
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Patent number: 4968746Abstract: Thermoplastic molding compositions are provided which comprise a polyester resin alone or in combination with a poly(etherester) elastomer, a poly(etherimide ester) elastomer, or a mixture of the foregoing modified with a multi-stage polyorganosiloxane/polyvinyl-based graft polymer which exhibit materially enhanced impact strength, particularly at low temperatures, while maintaining other desirable properties without showing any tendency to delaminate. Particularly noteworthy are reductions in surface gloss and the substantially complete elimination of mottling.Type: GrantFiled: November 14, 1988Date of Patent: November 6, 1990Assignee: General Electric CompanyInventors: James L. Derudder, I-Chung W. Wang
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Patent number: 4963432Abstract: A wiper for one step polishing and protecting of a hard surface such as wood and plastic surfaces, e.g. furniture, comprises a nonwoven substrate impregnated with a liquid polish composition comprising by weight of the composition: (a) from about 0.7 to about 7% of an organic polysiloxane having a viscosity of from about 50 to about 100 centistokes at 25.degree. C.; (b) from about 0.1 to about 3.5 of an organic polysiloxane having a viscosity of about 1000 to about 25,000 centistokes at 25.degree. C.; (c) from 0 to about 1.4% of an aminofunctional silicone fluid; (d) from about 0.1 to about 1% of a wax; (e) from about 1 to about 15% of a hydrocarbon solvent having an initial boiling point above about 98.degree. C. and an end boiling point below about 200.degree. C.; (f) from about 0.05 to about 2% of a nonionic emulsifier; and (g) the remainder to 100% water; wherein the ratio of (a) to (b) is from about 2 to 1 to about 5 to 1, the substrate has a basis weight of from about 30 to about 90 g/sq.yd.Type: GrantFiled: April 10, 1989Date of Patent: October 16, 1990Assignee: Sterling Drug Inc.Inventors: Cynthia L. Fuggini, Allan L. Streit
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Patent number: 4960810Abstract: The present invention relates to olefin polymers stabilized with polydialkylsiloxanes containing pendant sterically hindered phenol moieties. The compounds are represented by the general formula MD.sub.x D*.sub.y M.sub.A 2 wherein M=R"R.sub.2 SiO.sub.Type: GrantFiled: March 30, 1989Date of Patent: October 2, 1990Assignee: Union Carbide Chemicals and Plastics Company Inc.Inventors: George N. Foster, Herbert E. Petty, Charles H. Blevins, II.
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Patent number: 4959404Abstract: A thermoplastic resin composition comprises a resin dispersion which includes a thermoplastic resin component having a solubility parameter .delta. of at least 9.5 cal.sup.1/2 cm.sup.-3/2, a modifier component having a solubility parameter .delta. of not higher than 8.5 cal.sup.1/2 cm.sup.-3/2, and a dispersibility improver comprising a silicon-containing polyacetal copolymer having (i) a siloxane segment derived from 0.01 to 30 wt. % of a terminal-reactive silicone oil of the following general formula I: ##STR1## wherein R.sub.1 represents an alkyl or phenyl group, R.sub.2 represents a divalent organic group, X represents a group selected from the group consisting of --NH.sub.2, --OH, ##STR2## --R.sub.4 OH, --R.sub.5 COOH, --R.sub.6 COOR.sub.7, --R.sub.8 and --OR.sub.9, R.sub.3 represents a divalent organic group, R.sub.4 to R.sub.6 each represent an alkylene group having 1 to 10 carbon atoms, R.sub.7 to R.sub.Type: GrantFiled: November 3, 1988Date of Patent: September 25, 1990Assignee: Polyplastics Co., Ltd.Inventors: Toshio Nakane, Yukihiko Kageyama, Kenji Hijikata
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Patent number: 4956404Abstract: A composition comprising a polyvinyl acetate homopolymer emulsion, glyceryl triacetate, silicon, epoxidized oil, talc, fumed silica and dextrin exhibiting remarkable molding, coloring and printing properties for used as novelty items, activity toys and molding compounds. This composition is also for use as an artist's tool, transfer and printing medium, as an exercising device and for art therapy. The molded object, after exposure to air, becomes dry and will remain flexible and permanent, including fine detail and brilliant colors. The composition may contain suitable food dyes, which allows the color to be transferred from the compound to paper, canvas, fabric and wall. The color print dries instantly. Luster and pearlescent pigments brushed on the surface of the molded objects gives the appearance of cast precious metal.Type: GrantFiled: January 10, 1989Date of Patent: September 11, 1990Inventor: Josef Pelzig
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Patent number: 4954549Abstract: Flame retardant aromatic polycarbonate blends are provided which are capable of being tested V-O under UL-94 test conditions. A triarylsilicon material such as triphenylsilanol is incorporated into the aromatic polycarbonate to provide transparent, flame retardant compression moldable thermo-plastics capable of satisfying the UL-94 V-O requirement at 1/16".Type: GrantFiled: August 28, 1989Date of Patent: September 4, 1990Assignee: General Electric CompanyInventors: Larry N. Lewis, Stephen C. Bunnell
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Patent number: 4950701Abstract: A method for bonding two objects by means of the following two adhesives:(A) a moisture-inducible room temperature anion polymerization curing adhesive composed essentially of at least one anion polymerizable compound selected from the group consisting of an .alpha.-cyanoacrylate compound of the formula: ##STR1## wherein R is an alkyl group having from 1 to 16 carbon atoms, an alkoxyalkyl group having 2 to 16 carbon atoms, a haloalkyl group having from 1 to 16 carbon atoms, a cyanoalkyl group having from 2 to 16 carbon atoms, an aralkyl group having from 6 to 12 atoms, an acyloxyalkyl group having from 2 to 16 carbon atoms, a cycloalkyl group having from 3 to 16 carbon atoms, an alkenyl group having from 2 to 16 carbon atoms or an aryl group having from 6 to 12 carbon atoms, and a 1,1-disubstituted diene compound of the formula: ##STR2## wherein each of R.sup.1 and R.sup.Type: GrantFiled: August 8, 1988Date of Patent: August 21, 1990Assignee: Cemedine Company, Ltd.Inventors: Naomi Okamura, Hiroshi Aoki, Junzo Makino, Hajime Yagi, Yasuo Arai, Takashi Yamanaka
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Patent number: 4943460Abstract: Processes for treating polymeric surfaces to produce smooth, durable, slippery coatings which are able to withstand the rigors of sterilization and, long term exposure to human blood and other bodily fluids without substantial loss of their slipperiness.Type: GrantFiled: February 13, 1989Date of Patent: July 24, 1990Assignee: Snyder Laboratories, Inc.Inventors: Richard A. Markle, Phyllis L. Brusky, John H. Baker
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Patent number: 4943601Abstract: A latent curable electronic coating composition is described which comprises:a. a linear dimethylvinyl chainstopped polydimethylsiloxane fluid having a viscosity of about 500 to 5000 centipoise at 25.degree. C.;b. an organohydrogenpolysiloxane;c. an amount of a platinum catalyst sufficient to cause the co-reaction of (a) and (b);d. a combination of inhibiting agents comprised of (i) an ethylenically unsaturated isocyanurate and (ii) a dialkyl acetylenedicarboxylate; ande. a silanol-containing dimethyl siloxane hydrolyzate having a silanol content from about 0.5% to about 1.5% and a viscosity from about 4 to about 40 centipoise at 25.degree. C.Type: GrantFiled: April 3, 1989Date of Patent: July 24, 1990Assignee: General Electric CompanyInventor: Anthony J. Dinallo, Sr.
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Polymer mixture comprising polybutylene terephthalate, aromatic polycarbonate and polydialkysiloxane
Patent number: 4942188Abstract: The invention relates to polymer mixtures which comprise a polybutylene terephthalate, an aromatic polycarbonate, and a dialkyl silicone fluid. Due to the presence of the dialkyl silicone fluid compound a good lacquer bonding is obtained.Type: GrantFiled: November 9, 1988Date of Patent: July 17, 1990Assignee: General Electric CompanyInventors: Wilhelmus Jozefus L. A. Hamersma, Jan de Boer, Wilhelmus M. M. Roovers, Gerrit de Wit