Mixed With Ethylenically Unsaturated Reactant Or Polymer Derived Therefrom Patents (Class 525/479)
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Patent number: 6800372Abstract: A composite of a resin member bonded to a rubber member is obtained by molding a resin molding element and a rubber molding element with contacting said elements each other, and vulcanizing or crosslinking the rubber molding element, wherein said resin molding element is either of a resin composition and a resin member, each comprising the thermoplastic resin; and said rubber molding element is either of a rubber composition and a rubber premolded article, each comprising at least an unvulcanized silicone rubber, and a radical-generating agent (e.g., organic peroxides) being activating on a surface to be contacted with said resin molding element. The thermoplastic resin includes a polyamide-series resin, a polyester-serires resin, a PPE-series resin, etc. The unvulcanized rubber composition may comprise a polyfunctional compound having plural polymerizable groups.Type: GrantFiled: September 16, 2002Date of Patent: October 5, 2004Assignee: Daicel-Degussa Ltd.Inventors: Toru Ikuta, Hajime Komada, Mitsuteru Mutsuda
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Patent number: 6800330Abstract: A composition for film formation capable of forming a silica-based coating film having low water absorption and dielectric constant of 2.1 or lower and useful as an interlayer insulating film material in semiconductor devices, etc.Type: GrantFiled: March 25, 2002Date of Patent: October 5, 2004Assignee: JSR CorporationInventors: Eiji Hayashi, Michinori Nishikawa, Atsushi Shiota, Kinji Yamada
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Patent number: 6800713Abstract: Methods for making silicone-organic copolymers are disclosed involving the manipulation of polymerization chain terminators allowing for polymer molecular weight control.Type: GrantFiled: May 15, 2002Date of Patent: October 5, 2004Assignee: Dow Corning CorporationInventors: Leon Neal Cook, Jodi Lynnette Jibben, Kimmai Thi Nguyen, Lenin James Petroff, Jay Brian Rose, Julie Ann Hayes
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Patent number: 6797222Abstract: A slush molding process in which the moldable thermoplastic composition powder dosed to the mold is prepared by blending ethylene carboxylic acid copolymers or ionomers with ethylene/glycidyl acrylate or methacrylate copolymer and cross-linking promoter at a temperature and for a time that does not cause significant cross-linking prior to dosing to mold, which is held for sufficient time and temperature to cause cross-linking in-situ, and optionally, other additives including release agents.Type: GrantFiled: October 31, 2002Date of Patent: September 28, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Karlheinz Hausmann, George K. Kodokian, George W. Prejean
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Patent number: 6787241Abstract: A film obtained by heating a coating of a resin composition at a temperature lower than 300° C. but not lower than 40° C. in air or in an inert atmosphere. The resin composition includes a hydrosilylated polymer obtained by reacting at least one hydridosilsesquioxane compound of the following formula (1): (HSiO3/2)n (1) wherein n is an integer of 4-1000, with at least one compound of the following formula (2) R1—C≡C—R2 (2) wherein R1 represents a hydrogen atom, a monovalent organic group or a monovalent organosilicon group and R2 represents a hydrogen atom or a group of the formula: —(R′)q—C≡C—R where R′ represents a divalent organic group or a divalent organometallic group, R represents a monovalent organic group or a monovalent organosilicon group and q is 0 or 1 with the proviso that when R1 is a hydrogen atom R2 is a hydrogen atom.Type: GrantFiled: March 14, 2002Date of Patent: September 7, 2004Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Toshiaki Kobayashi, Teruyuki Hayashi, Masato Tanaka, Kouichi Yamaguchi
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Patent number: 6780934Abstract: A room temperature-setting composition containing a polyoxyalkylene polymer (A) having a molecular weight ranging from 8000 to 50000 and having hydrolyzable silicon groups of the following formula (1): —SiXaR13−a (1) wherein R1 is a C1-20 substituted or unsubstituted monovalent organic group, X is a hydroxyl group or a hydrolyzable group, a is 1, 2 or 3, provided that when more than one R1 group is present, the R1 groups may be the same or different, and when more than one X group is present, the X groups may be the same or different, the composition comprising, as an essential component, the polyoxyalkylene polymer, having a molecular weight ranging from 8000 to 50000 and having hydrolyzable silicon groups of formula (1), wherein a is 3, or the composition comprises a polyoxyalkylene polymer component as defined above which contains said essential specific polyoxyalkylene polymer component, and a polymer (B) made by polymerization of a polymerizable unsaturated group-containing monomType: GrantFiled: August 29, 2002Date of Patent: August 24, 2004Assignee: Asahi Glass Company Ltd.Inventors: Takao Doi, Takashi Watabe, Tomoko Matsumoto, Tatsuo Onoguchi, Kaori Tsuruoka
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Publication number: 20040162399Abstract: A silicone-acrylate impact modifier composition, wherein said impact modifier composition comprises structural units derived from:Type: ApplicationFiled: February 14, 2003Publication date: August 19, 2004Inventors: Poreddy Narsi Reddy, Alagarsamy Subbaiah, Samik Gupta, Prabha Rangorath Chatterji
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Patent number: 6767981Abstract: A thermoset polymer has a repeating unit comprising at least one crosslinking group having at least one unsaturated carbon-carbon bond and at least two crosslinking bonds, at least one borate group, at least one silyl group and/or at least one siloxyl group. The thermoset polymer of the present invention may be prepared by reacting a first compound having at least one alkynyl group, and at least one group selected from silyl groups and siloxyl groups, with a second compound selected from boric acid, hydrocarbon boronic acid, hydrocarbon borate, and pyroboric acid under reaction conditions sufficient to crosslink a sufficient number of alkyne bonds to form the thermoset polymer. The thermoset polymer of the present invention possesses both the processability of an organic polymer and the thermal and oxidative stability of an inorganic polymer. The thermoset polymer of the present invention may be further processed into a ceramic material by pyrolysis.Type: GrantFiled: September 26, 2002Date of Patent: July 27, 2004Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, David Y. Son
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Patent number: 6767642Abstract: Acrylosilane polymers containing vinyl silanes are prepared by copolymerizing vinyl alkoxy silane monomers predominantly with, or in the alternative, only with acrylate monomers. The polymer so prepared can be used as the main component in the acid etch resistant solvent borne coating compositions and in particular in clear coating compositions for clear coat/color coat finishes for automobiles and trucks.Type: GrantFiled: March 11, 2002Date of Patent: July 27, 2004Assignee: E. I. du Pont Nemours and CompanyInventors: Donald A. Paquet, Jr., Ding-Yu Chung, Isidor Hazan
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Patent number: 6759486Abstract: Sulfur-functional polyorganosiloxanes corresponding to the general formula I with substituents as described in the specification, corresponding to the general formula I They can be used in rubber mixtures.Type: GrantFiled: May 13, 2002Date of Patent: July 6, 2004Assignee: Degussa AGInventors: Hans-Detlef Luginsland, Roland Krafczyk, Wolfgang Lortz
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Patent number: 6759094Abstract: Branched organosiloxane (co)polymers comprising the structural elements of the formula Y[—CnH2n—(R2SiO)m—Ap—R2Si—G]x (I) where Y is a tri- to decavalent, optionally heteroatom-containing hydrocarbon radical, R is a monovalent, optionally halogenated hydrocarbon radical, A is a radical of the formula —R2Si—R2—(R2SiO)m—, in which R2 is a divalent hydrocarbon radical, G is a monovalent radical of the formula —CfH2f−2—Z or a divalent radical of the formula —CnH2n— bonded to a further radical Y, Z is a monovalent hydrocarbon radical which is free from terminal aliphatic carbon-carbon multiple bonds, and is inert toward SiH groups in hydrosilylation reactions, x is an integer from 3 to 10, f is an integer from 2 to 12, k is 0 or 1, n is an integer from 2 to 12, m is an integer which is at least 1, and p is 0 or a positive integer, with the proviso that the branched organosiloxane (co)polymers contain onType: GrantFiled: July 17, 2002Date of Patent: July 6, 2004Assignee: Wacker-Chemie GmbHInventors: Christian Herzig, Reinhard Stallbauer, Christine Weizhofer
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Patent number: 6750308Abstract: This invention relates to a silicone resin composition comprising a silicone resin and an unsaturated compound. This resin composition is formulated from a silicone resin which has in its structural unit cage type polyorganosilsesquioxane whose siloxy groups are linked to a triorganosilyl group represented by —Si(CH3)2—X (wherein X is —R1—OCO—CR2═CH2, —R1—CR2═CH2 or —CH═CH2, R1 is an alkyl group, an alkylidene group or phenylene group and R2 is a hydrogen atom or an alkyl group) and an unsaturated compound which contains an unsaturated group represented by —R3—CR4═CH2 or —CR4═CH2 (wherein R3 is an alkylene group, an alkylidene group or —OCO— group and R4 is a hydrogen atom or an alkyl group) at the weight ratio of the silicone resin to the unsaturated compound in the range of 1:99 to 99:1.Type: GrantFiled: October 31, 2002Date of Patent: June 15, 2004Assignee: Nippon Steel Chemical Co., Ltd.Inventors: Hideki Andoh, Masayoshi Isozaki, Takero Teramoto
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Patent number: 6746763Abstract: This invention provides a clear paint composition suitable for application on base coated surface of a coating object, which is characterized by comprising (a) a hydroxyl- and epoxy-containing acrylic resin, (b) a high acid value polyester resin having an acid value of 120-200 mgKOH/g and a number-average molecular weight of 500-4,000, (c) an alkoxysilyl-containing acrylic resin, and (d) an acrylic resin containing alkoxysilyl groups and dimethylpolysiloxane side chains, and forming a coating which, after being cured, has a glass transition point within a range of 100-120° C.Type: GrantFiled: September 18, 2002Date of Patent: June 8, 2004Assignees: Nissan Motor Co., Ltd., Kansai Paint Co., Ltd.Inventors: Tatsuya Ishihara, Masahiko Yamanaka, Tetsuji Mizuno, Goro Saito, Yoshizumi Matsuno
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Patent number: 6740469Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system. In a preferred embodiment, the polymers of the composition include recurring units having the formula where X is a light-attenuating moiety, M is a metal, and each R is individually selected from the group consisting of hydrogen, alkyls, aryls, alkoxys, and phenoxys. The resulting compositions are spin bowl compatible (i.e., they do not crosslink prior to the bake stages of the microlithographic processes or during storage at room temperature), are wet developable, and have superior optical properties.Type: GrantFiled: June 25, 2002Date of Patent: May 25, 2004Assignee: Brewer Science Inc.Inventors: Vandana Krishnamurthy, Charles J. Neef, Juliet A. M. Snook
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Patent number: 6730408Abstract: A novel moisture curable polymer combination comprising, a member selected from the group consisting of a polydiolefin polymer containing olefinic unsaturation in either the main polymer backbone or in pendent side chains; and a loop polymer having a polymeric backbone and a plurality of olefinic groups which have been converted to closed loops by reaction with difunctional organic compounds reactive with said olefinic groups, said olefinic groups from which the loops are formed may either be present within the backbone and/or pendent from the polymeric backbone; and a silicon crosslinking compound containing at least one easily hydrolyzed substituent.Type: GrantFiled: August 29, 2002Date of Patent: May 4, 2004Inventors: Kurt Baum, Wen-Huey Lin
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Patent number: 6730453Abstract: The invention provides a high molecular weight silicone compound comprising recurring units of formula (1) and having a weight average molecular weight of 1,000-50,000. Some or all of the hydrogen atoms of carboxyl groups or carboxyl and hydroxyl groups in the silicone compound may be replaced by acid labile groups. Z is a di- to hexavalent, non-aromatic, monocyclic or polycyclic hydrocarbon or bridged cyclic hydrocarbon group; Z is a di- to hexavalent, normal or branched hydrocarbon group or non-aromatic, monocyclic or polycyclic hydrocarbon or bridged cyclic hydrocarbon group; x, y and z are integers of 1-5 corresponding to the valence of Z and Z′; R1 is —OCHR—R′—OH or —NHCHR—R′—OH; R2 is alkyl or alkenyl or a monovalent, non-aromatic, polycyclic hydrocarbon or bridged cyclic hydrocarbon group; p1, p2, p3 and p4 are 0 or positive numbers.Type: GrantFiled: June 25, 2001Date of Patent: May 4, 2004Assignee: Shin Etsu Chemical Co., Ltd.Inventors: Mutsuo Nakashima, Ichiro Kaneko, Toshinobu Ishihara, Junji Tsuchiya, Jun Hatakeyama, Shigehiro Nagura
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Patent number: 6727338Abstract: A hydrido-silicone is incompletely reacted with (preferably) a long chain olefin under hydrosilylation conditions to produce a partially substituted hydrido-silicone that is further reacted under hydrosilylation conditions with a vinyl containing MQ resin to partially consume the remaining hydride species which is then reacted under hydrosilylation conditions to consume the remaining hydride species with a long chain diolefin to produce a composition that is useful as an anti-mist agent in the coating of flexible supports.Type: GrantFiled: November 15, 2002Date of Patent: April 27, 2004Assignee: General Electric CompanyInventors: John Alfred Kilgour, Edwin C. Cua, John A. Cummings
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Patent number: 6726997Abstract: An aqueous dispersion which is excellent in storage stability, and can form a coating film excellent in leveling properties, anti-checking properties, water resistance, etc., transparent and high in hardness, which is obtained by mixing and emulsifying (A) at least one selected from an organosilane represented by (R1)4−n—(Si)—(OR2)n, a hydrolysate of the organosilane and a partial condensation product of the hydrolysate, (B) a radical polymerizable monomer, (C) an emulsifier and (D) a hydrolytic catalyst for component (A) to reduce the particle size of an emulsion, as well as to allow hydrolysis of component (A) to proceed, and adding (E) a radical polymerization initiator to allow polymerization of component (B) to proceed, has a concentration of alcohols having a boiling point of 100° C. or less of 0.1 to 2.0 wt %, and further contains (F) a component having ultraviolet absorption and/or light stabilization action as needed.Type: GrantFiled: May 1, 2002Date of Patent: April 27, 2004Assignee: JSR CorporationInventors: Kouji Tamori, Hirotaka Shida, Kenji Ishizuki
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Patent number: 6716533Abstract: The present invention relates to curable alkenyl based silicone release coating compositions having improved adhesion to paper and polymeric substrates. Furthermore the present invention relates to the process for making a silicone release coating with improved adhesion to paper and polymeric substrates.Type: GrantFiled: August 27, 2001Date of Patent: April 6, 2004Assignee: General Electric CompanyInventors: Roy M. Griswold, Slawomir Rubinsztaijn, Michael J. O'Brien
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Patent number: 6715874Abstract: The invention relates to novel crosslinkable copolymers of formula wherein the variables are as defined in the claims. The copolymers of the invention are especially useful for the manufacture of biomedical moldings, for example ophthalmic moldings such as in particular contact lenses.Type: GrantFiled: July 28, 2000Date of Patent: April 6, 2004Assignee: Novartis AGInventors: Jens Höpken, Dieter Lohmann
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Patent number: 6706811Abstract: The invention discloses an efficient and convenient method for the preparation of an aqueous emulsion of an organopolysiloxane having long-chain alkyl groups bonded to the silicon atoms. Instead of dispersing and emulsifying an organopolysiloxane modified in advance with long-chain alkyl groups in an aqueous medium, as is the case in the prior art method, an organohydrogenpolysiloxane having silicon-bonded hydrogen atoms and a long-chain &agr;-olefin compound are co-emulsified in an aqueous medium containing a surface active agent and this aqueous emulsion is heated under agitation with addition of a catalytic platinum compound so as to effect the in situ hydrosilation reaction between the silicon-bonded hydrogen atoms in the organohydrogenpolysiloxane and the ethylenically unsaturated bonds in the &agr;-olefin compound. The aqueous emulsion prepared by the inventive method exhibits excellent stability against long-term storage, dilution with water and mechanical shearing force.Type: GrantFiled: June 3, 2002Date of Patent: March 16, 2004Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Hiroshi Ohashi
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Patent number: 6677393Abstract: The invention relates to silicone-based addition-crosslinking impression material, containing (a) organopolysiloxanes with at least two unsaturated groups in the molecule, (b) organohydrogen polysiloxanes with at least three Si—H groups in the molecule, (c) optionally, organopolysiloxanes without reactive groups, (d) platinum catalyst, (e) optionally, hydrophilizing agent, (f) filler, (g) optionally, further customary additives, auxiliaries and dyes, characterized in that it contains, as component (h), polyalkylene oxide and/or its derivatives with an average molar mass of Mw>1000 at the rate of 0.001 to 1.0 wt.-% relative to the total mass of the cured material.Type: GrantFiled: October 1, 2001Date of Patent: January 13, 2004Assignee: 3M ESPE AGInventors: Joachim Zech, Erich Wanek
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Patent number: 6673876Abstract: A fluorinated curable composition in which a fluorinated organohydrogensiloxane as the curing agent is well compatible with a linear polyfluoro compound as the base yields a cured gel having good adhesion to substrates and improved chemical and solvent resistance.Type: GrantFiled: February 20, 2002Date of Patent: January 6, 2004Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kenichi Fukuda, Mikio Shiono
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Patent number: 6664342Abstract: Aspartate-functional silicone and the process for its preparation is disclosed. Also disclosed are aromatic polycarbonate that contains the inventive aspartate-functional silicone, a process for its preparation and its use in making molded articles.Type: GrantFiled: January 15, 2002Date of Patent: December 16, 2003Assignee: Bayer AktiengesellschaftInventors: Burkhard Köhler, Klaus Horn
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Patent number: 6649707Abstract: Polycyclic addition polymers derived from norbornene-type monomers are mixed with a variety of other polymers to generate families of new blends, alloys, and block copolymers.Type: GrantFiled: October 4, 2000Date of Patent: November 18, 2003Assignee: Sumitomo Bakelite Co., Ltd.Inventors: Larry F. Rhodes, Brian L. Goodall, Rolf Mülhaupt, Robert A. Shick, George M. Benedikt, Sai Kumar Jayaraman, Lynn M. Soby, Lester H. McIntosh, III
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Patent number: 6649722Abstract: This invention is directed to ophthalmic materials and ophthalmic lenses that are a co-polymerization product of a (a) hydrophilic monomer with (b) a tris(siloxy)silyl group-containing monomer, (c) a wide variety of hydrophobic monomers (both aliphatic and aromatic) and usually a (d) polyfluorinated monomer, as well as optional monomers or monomer mixtures that can include a cationic monomer, a non-aromatic hydrophobic monomer and a poly(dimethylsiloxy)silyl group-containing monomer. A contact lens prepared from such a co-polymer exhibits enhanced water content, while maintaining exceptional oxygen permeability, thereby providing a lens that can be worn comfortably for prolonged periods of time. A process for the preparation of such lenses is also disclosed.Type: GrantFiled: December 6, 2000Date of Patent: November 18, 2003Assignee: Novartis AGInventors: Howard S. Rosenzweig, Michael H. Quinn, Robert Tucker, Greg Carlson, Gerardo J. Ocampo
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Patent number: 6639025Abstract: Elastomer-modified Epoxy-polysiloxane compositions of this invention are prepared by combining a silicone intermediate, with an epoxy resin, an elastomeric resinous intermediate, a polyfunctional amine, an optional organometallic catalyst, and optional fillers, pigments, and processing agents. The composition is prepared using a sufficient amount of water to promote hydrolysis of the polysiloxane and the polycondensation of the silanols produced by such hydrolysis. In its cured form, the epoxy-polysiloxane composition exists as a uniformly dispersed arrangement of linear epoxy chain fragments that are cross-linked with a continuous polysiloxane polymer chain, wherein either or both of the epoxy and/or polysiloxane polymers are elastomer modified to provide coatings and floorings having significantly improved properties of impact resistance, flexibility, crack resistance, and abrasion resistance with compared to conventional epoxy systems.Type: GrantFiled: February 1, 2002Date of Patent: October 28, 2003Assignee: Ameron International CorporationInventor: Haruji Sakugawa
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Patent number: 6632537Abstract: Reaction product of a composition comprising in admixture a polyisocyanate, a silicone having dimethylsiloxane segments containing one or more isocyanate-reactive group, a reactant containing one or more of an isocyanate-reactive group and one or more ionizable group, optionally an organic substance having one or more isocyanate-reactive groups and no ionizable group, and compound providing counterion for said ionizable group, wherein either the silicone, or the reactant, or both, have a single isocyanate-reactive group.Type: GrantFiled: May 29, 2001Date of Patent: October 14, 2003Inventor: A. Andrew Shores
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Patent number: 6623864Abstract: Organopolysiloxane-based compositions that are used to prepare silicone rubbers that are flame retardant and to the use of such rubbers. More specifically, flame retardant rubbers that are useful as coatings, for example, as marine deck coatings, firewall construction and fireblanket applications. The materials are resin reinforced silicone polymers used in conjunction with ceramic hollow spheres and they have demonstrated good performance in flame retardancy tests.Type: GrantFiled: January 13, 2003Date of Patent: September 23, 2003Assignee: Dow Corning CorporationInventors: Randall P. Sweet, Jimmy H. Gallmeyer
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Patent number: 6624236Abstract: The invention relates to polysiloxanes from cross-linkable monomers based on cyclosiloxanes and their use in polymerizable compositions. The invention relates in particular to polysiloxanes from sol-gel-condensable cyclosiloxane(meth)acrylates as well as resinous compositions, obtainable by hydrolytic condensation of one or more hydrolyzable and condensable cyclosiloxane(meth)acrylates.Type: GrantFiled: September 19, 2001Date of Patent: September 23, 2003Assignee: 3M Espe AGInventors: Peter Bissinger, Oswald Gasser, Rainer Guggenberger, Wolfgang Soglowek, Gunther Eckhardt
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Publication number: 20030176597Abstract: A continuous process for the manufacture of silicone copolymer utilizing at least one static mixing plug flow reactor, and optionally two static mixing plug flow reactors in a series or parallel. Silicone copolymers produced in accordance thereof are substantially free of unreacted hydrogen siloxane starting material and may be used without further purification. The static mixing plug flow reactor contains static mixing elements capable of creating eddies and vortices of sufficient intensity that a biphasic liquid mixture such as a hydrogen siloxane fluid and an polyether olefinic reactant, undergoes shearing of the droplets of each material so that one phase disperses into another to provide intimate contact between the two phases to allow the reaction to proceed.Type: ApplicationFiled: April 4, 2003Publication date: September 18, 2003Applicant: CROMPTON CORPORATION, a corporation of the State of DelawareInventors: Paul E. Austin, Ladislau Heisler, David B. Davis
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Patent number: 6617021Abstract: An adhesive composition for semiconductor devices contains as essential components (A) epoxy resin, (B) phonolic resin, (C) epoxidized styrene-butadiene-styrene block copolymer and (D) diaminosiloxane compound. The adhesive composition is excellent in heat resistance, thermal cycle test and humidity resistance. An adhesive sheet employing the above adhesive composition is also provided.Type: GrantFiled: February 11, 2002Date of Patent: September 9, 2003Assignee: Tomoegawa Paper Co., Inc.Inventors: Masaharu Kobayashi, Osamu Oka, Yasuhiro Yoshii
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Publication number: 20030166795Abstract: The present invention is constituted of a curable compositionType: ApplicationFiled: November 26, 2002Publication date: September 4, 2003Inventors: Nobuhiro Hasegawa, Yoshiki Nakagawa
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Patent number: 6610778Abstract: In a fluorosilicone rubber composition comprising (A) an organopolysiloxane having trifluoropropyl and (B) a silica filler, there are included (C) an organic peroxide of percarbonate type as a crosslinking agent and (D) a compound having a molecular weight of up to 10,000 and bearing in a molecule at least two substituents selected from among allyl, acryloyl, methacryloyl, epoxy and alkoxy groups as a co-crosslinking agent, whereby the vulcanization molding time is substantially reduced without detracting from physical properties.Type: GrantFiled: August 31, 2001Date of Patent: August 26, 2003Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kenichi Takita, Kunihiko Mita
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Patent number: 6593418Abstract: The present invention concerns new organic silicon networks, their production process and use in silica-containing rubber compounds and vulcanizates manufactured from them.Type: GrantFiled: September 12, 2001Date of Patent: July 15, 2003Assignee: Rhein Chemie Rheinau GmbHInventors: Rüdiger Herpich, Thomas Früh, Ludger Heiliger, Kurt Schilling
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Patent number: 6592997Abstract: A polydiorganosiloxane with a polar radical with a dipole moment greater than 2 debye provides a polydiorganosiloxane with an initial viscosity in a range between about 100 centipoise and about 50,000 centipoise. Further embodiments of the present invention include a silicone composition, a method for substantially increasing the thermal conductivity of a silicone composition, and a thermal interface material containing a silicone composition wherein the silicone composition includes the aforementioned polydiorganosiloxane.Type: GrantFiled: June 25, 2001Date of Patent: July 15, 2003Assignee: General Electric CompanyInventors: Larry Neil Lewis, Steven Kenneth Gifford
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Patent number: 6593436Abstract: A continuous process for the manufacture of silicone copolymer utilizing at least one static mixing plug flow reactor, and optionally two static mixing plug flow reactors in a series or parallel. Silicone copolymers produced in accordance thereof are substantially free of unreacted hydrogen siloxane starting material and may be used without further purification. The static mixing plug flow reactor contains static mixing elements capable of creating eddies and vortices of sufficient intensity that a biphasic liquid mixture such as a hydrogen siloxane fluid and an polyether olefinic reactant, undergoes shearing of the droplets of each material so that one phase disperses into another to provide intimate contact between the two phases to allow the reaction to proceed.Type: GrantFiled: October 3, 2001Date of Patent: July 15, 2003Assignee: Crompton CorporationInventors: Paul E. Austin, Ladislau Heisler, David B. Davis
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Patent number: 6590026Abstract: The invention concerns a coating composition, in particular a paint comprising (A) 3 to 30 parts of a latex consisting of organic (co)polymers having a glass transition temperature ranging between −20° C. and 50° C.; (B) 0.05 to 5 parts of an epoxyfunctionalized polyorganosiloxane emulsion; (C) and 100 parts of mineral fillers.Type: GrantFiled: June 25, 2001Date of Patent: July 8, 2003Assignee: Rhodia ChimieInventors: Michel Dorget, Mathieu Joanicot, Gérard Mignani, Paul Branlard
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Patent number: 6590010Abstract: By blending novel organosiloxane polymers of the invention with a crosslinking agent and a photoacid generator, photo-curable resin compositions are formulated which can be exposed to radiation in a broad wavelength range and readily form a thin film without oxygen attack. From the compositions, fine patterns having improved dry etching resistance can be formed. Cured coatings of the compositions having improved substrate adhesion, heat resistance, and electrical insulation are suitable as a protective film for electric and electronic parts.Type: GrantFiled: September 12, 2001Date of Patent: July 8, 2003Assignee: Shin-Etsu Chemicals, Co., Ltd.Inventors: Hideto Kato, Takafumi Ueda, Tomoyoshi Furihata
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Patent number: 6562910Abstract: A polymer having at least one reactive terminal or pendant functional group that has been capped with a trifunctional olefinic compound. The polymer can be made by contacting a base polymer having at least one reactive terminal or pendant functional group with a trifunctional olefinic compound under conditions effective to react at least one of the terminal or pendant functional groups with the trifunctional olefinic compound. The capped polymers are particularly suitable as crosslinking toughening agents in multi-components compositions such as adhesives, coatings and matrices for composites.Type: GrantFiled: August 21, 2002Date of Patent: May 13, 2003Assignee: Lord CorporationInventor: Robin F. Righettini
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Patent number: 6545092Abstract: This invention relates to a new adhesive coating composition, particularly for use on airbag fabrics, which is composed of a crosslinked blend of a polyalkyl- or polyphenylsiloxane with vinyl functionality and a copolymer of ethylene and methyl acrylate. This coating provides excellent adhesive properties to the coated fabric, in that it restricts the movement, when put under stress, of the yarns constructing that fabric, which are situated adjacent to seams in the fabric. This reduces the effect known in the trade as combing. Fabric treated with this material in the manner described herein, requires a marked increase in the amount of force required for this yarn movement. This distortion of the fabric can be detrimental in an automotive airbag, in that, it may result in the loss of inflating air, and under extreme conditions may result in a seam failure.Type: GrantFiled: December 11, 2001Date of Patent: April 8, 2003Assignee: Milliken & CompanyInventor: Richard Henry Parker
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Patent number: 6541119Abstract: Multi-component composite coating compositions are provided which comprise a base coat deposited from a pigmented film-forming composition and a transparent top coat applied over the base coat in which the transparent top coat is deposited from a film-forming composition comprising one ore more ungelled chain-extended organic polysiloxanes having reactive functional groups, and one or more curing agents having functional groups reactive with the functional groups of the polysiloxane. Additionally provided is a process for applying the multi-component composite coatings described above to a substrate. Substrates coated with the above-described multi-component composite coating compositions are also provided.Type: GrantFiled: April 27, 2001Date of Patent: April 1, 2003Assignee: PPG Industries Ohio, Inc.Inventors: Richard J. Sadvary, Lawrence G. Anderson, Dennis A. Simpson, Thomas R. Hockswender, Masayuki Nakajima, Truman F. Wilt
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Patent number: 6534188Abstract: Multi-component composite coating compositions are provided which comprise a base coat deposited from a pigmented film-forming composition and a transparent top coat applied over the base coat in which the transparent top coat is deposited from a film-forming composition comprising one ore more ungelled chain-extended organic polysiloxanes having reactive functional groups, and one or more curing agents having functional groups reactive with the functional groups of the polysiloxane. Additionally provided is a process for applying the multi-component composite coatings described above to a substrate. Substrates coated with the above-described multi-component composite coating compositions are also provided.Type: GrantFiled: April 27, 2001Date of Patent: March 18, 2003Assignee: PPG Industries Ohio, Inc.Inventors: Richard J. Sadvary, Lawrence G. Anderson, Dennis A. Simpson, Thomas R. Hockswender, Masayuki Nakajima, Truman F. Wilt
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Publication number: 20030050408Abstract: There is disclosed a pneumatic tire having a rubberized component comprising:Type: ApplicationFiled: August 7, 2002Publication date: March 13, 2003Inventors: Aaron Scott Puhala, David John Zanzig, Brian David Holden, Neil Arthur Maly
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Patent number: 6531542Abstract: Spherical crosslinked organic particles exhibit a good dispersibility in thermoplastic resins, thermosetting resins, paints, coatings, cosmetics, rubbers, and toners and carriers employed in electrostatic development. Highly efficient methods for preparing these crosslinked organic particles are provided. Suspensions of crosslinked organic particles have excellent handling properties, and are highly blendable with other components. Highly efficient methods for preparing these suspensions are also provided. The spherical crosslinked organic particles have an average particle size of 0.Type: GrantFiled: July 26, 2000Date of Patent: March 11, 2003Assignee: Dow Corning Toray Silicone Company, Ltd.Inventors: Yoshitsugu Morita, Kazuo Kobayashi, Ryuji Tachibana
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Patent number: 6528584Abstract: Multicomponent networks or membranes of the present invention have good mechanical properties that are permeable to water, hydrocarbons, and oxygen. The networks contain at least two and preferably at least three covalently combined domains, i.e., a hydrophilic, a lipophilic and an oxyphilic polymer segment, that give rise to a multicontinuous domain microstructure. At least one of these domains includes poly(ethylene glycol).Type: GrantFiled: April 12, 2001Date of Patent: March 4, 2003Assignee: The University of AkronInventors: Joseph P. Kennedy, Pious V. Kurian
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Publication number: 20030032732Abstract: A polymer having at least one reactive terminal or pendant functional group that has been capped with a trifunctional olefinic compound. The polymer can be made by contacting a base polymer having at least one reactive terminal or pendant functional group with a trifunctional olefinic compound under conditions effective to react at least one of the terminal or pendant functional groups with the trifunctional olefinic compound. The capped polymers are particularly suitable as crosslinking toughening agents in multi-components compositions such as adhesives, coatings and matrices for composites.Type: ApplicationFiled: August 21, 2002Publication date: February 13, 2003Inventor: Robin F. Righettini
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Patent number: 6515043Abstract: An oligomer of the formula: [R3SiO½]m[O½Si(R2)O½]n[SiO{fraction (3/2)}R]o[SiO{fraction (4/2)}]p (I) wherein each R is selected individually from the group consisting of R1, —OR2 and —OR3; each R1 is independently a substituted or unsubstituted hydrocarbon group; each R2 is a C1-C6 alkyl group or an acyl group; and each R3 is a independently an alkyl or alkenyl group having at least 8 carbon atoms; with the provisos that if R3 is alkenyl, there is no unsaturation within two carbon atoms adjacent to the oxygen atom of the —OR3 group; at least one R group is —OR3; at least one quarter of all R groups are —OR2 or —OR3; m=2 to 20; n=0 to 50; o=0 to 20; and p=0 to 10. The oligomer is a useful component of in insulation formulations for wire and cable used in underground locations.Type: GrantFiled: March 20, 2001Date of Patent: February 4, 2003Assignee: Crompton CorporationInventors: Herbert B. Petty, Robert Pickwell
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Patent number: 6515078Abstract: A polymer having at least one reactive terminal or pendant functional group that has been capped with a trifunctional olefinic compound. The polymer can be made by contacting a base polymer having at least one reactive terminal or pendant functional group with a trifunctional olefinic compound under conditions effective to react at least one of the terminal or pendant functional groups with the trifunctional olefinic compound. The capped polymers are particularly suitable as crosslinking toughening agents in multi-components compositions such as adhesives, coatings and matrices for composites.Type: GrantFiled: August 21, 2002Date of Patent: February 4, 2003Assignee: Lord CorporationInventor: Robin F. Righettini
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Patent number: 6509062Abstract: An elastomer delustering method comprising impregnating the surface of an elastomer with an organic compound having air-oxidizable curable unsaturated groups.Type: GrantFiled: April 3, 2001Date of Patent: January 21, 2003Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Toshiki Nakata, Masayuki Onishi