Solid Polymer From Ethylenic Reactants Only Is Derived From Plural Unsaturated Hydrocarbon Patents (Class 525/105)
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Patent number: 6889735Abstract: There is disclosed a pneumatic tire having a rubberized component comprising: (a) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (b) 1 to 50 phr of a dendrimer.Type: GrantFiled: January 28, 2003Date of Patent: May 10, 2005Assignee: The Goodyear Tire & Rubber CompanyInventors: Uwe Ernst Frank, Friedrich Visel, Thierry Florent Edme Materne, Rene Jean Zimmer, Wolfgang Lauer, Marc Weydert, Thomas Schildbach, Annette Lechtenböhmer, Maurice Peter Catharina Jozef Klinkenberg
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Patent number: 6864315Abstract: The crosslinkable rubber composition of the invention is crosslinkable by hot air, and a hot-air crosslinked rubber sheet thereof has no scratch on the surface in a hardness test using a pencil of HB and has a compression set of not more than 70% after a heat treatment at 150° C. for 22 hours. The rubber composition comprises an ethylene/?-olefin/non-conjugated polyene random copolymer rubber comprising a specific vinyl end group-containing norbornene compound, a SiH group-containing compound having at least two SiH groups in one molecule, and if necessary, an addition reaction catalyst comprising a platinum group element and a reaction inhibitor. The automobile weatherstrip, hose, rubber vibration insulator, belt, sealing material, expanded product, covered electric wire, electric wire joint, electric insulating part and household rubber product according to the invention comprise the above-mentioned rubber composition.Type: GrantFiled: March 14, 2000Date of Patent: March 8, 2005Assignees: Mitsui Chemicals, Inc., Shin-Etsu Chemical Co., Ltd.Inventors: Takashi Hakuta, Masaaki Kawasaki, Yoshiharu Kikuchi, Hidenari Nakahama, Taku Koda, Hiroshi Kameda, Shuichi Nonaka, Mikio Hosoya, Yuji Ishii, Mitsunao Arino, Tsutomu Nakamura, Satao Hirabayashi, Takeo Yoshida
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Patent number: 6852794Abstract: There is disclosed a pneumatic tire having a rubberized component comprising: (a) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (b) 1 to 110 phr of a polyhedral oligomeric silsesquioxanes.Type: GrantFiled: August 7, 2002Date of Patent: February 8, 2005Assignee: The Goodyear Tire & Rubber CompanyInventors: Aaron Scott Puhala, David John Zanzig, Brian David Holden, Neil Arthur Maly
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Patent number: 6846873Abstract: The present invention relates to an end-modified diene copolymer and a rubber composition for tire tread containing the same. More particularly, the present invention relates to a polymer and a rubber composition for tire tread comprising a mixture of the polymer with a vulcanizing agent and an inorganic filler such as carbon black and silica, the polymer being prepared by reacting the active end of a conjugate diene polymer, or a copolymer comprising at least one conjugate diene compound and a vinyl-substituted aromatic compound, polymerization-initiated using an organic lithium catalyst, with a coupling agent. The rubber composition for tire treads comprising the end-modified diene copolymer as an ingredient rubber enhances rolling resistance and wet skid resistance as well as mechanical properties directly concerned to the properties of the tires.Type: GrantFiled: June 29, 2001Date of Patent: January 25, 2005Assignee: Korea Kumho Petrochemical Co., Ltd.Inventors: YoungHoon Ko, Dongll Yoon, DaiSeung Choi, JungSu Park
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Patent number: 6846893Abstract: A mixture is provided comprising (a) at least one of an elastomeric thermoplastic, a non-elastomeric thermoplastic, an elastomeric thermoset and mixtures thereof, excluding polydiorganosiloxane fluids and (b) a polymer having soft polydiorganosiloxane units, hard polyisocyanate residue units, optionally, soft and/or hard organic polyamine residue units and terminal groups. The hard polyisocyanate residue and the hard polyamine residue comprise less than 50% by weight of the polydiorganosiloxane urea containing component. The polyisocyanate residue is the polyisocyanate minus the —NCO groups and the polyamine residue is the polyamine minus the —NH2 groups. The polyisocyanate residue is connected to the polyamine residue by urea linkages. The terminal groups are non-functional groups or functional groups. The polydiorganosiloxane urea containing component may be reactive under free-radical or moisture curing conditions.Type: GrantFiled: October 23, 1996Date of Patent: January 25, 2005Assignee: Minnesota Mining and Manufacturing CompanyInventors: Audrey A. Sherman, Mieczyslaw H. Mazurek, Walter R. Romanko, Patrick D. Hyde, Roy Wong, Albert I. Everaerts
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Patent number: 6817114Abstract: Use of compositions prepared with organic coupling agents carrying epoxy groups for preparing applications requiring simultaneously improved mechanical properties and low viscosity.Type: GrantFiled: September 30, 2002Date of Patent: November 16, 2004Assignee: Atofina Research S.A.Inventor: Pierre Bredael
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Patent number: 6790909Abstract: The invention relates to a process for preparing a reaction product (RP) which is functionalized by groups containing halogen or sulfonyl chloride by reaction of at least one free-radically polymerizable monomer, at least one compound of the formula (I), at least one free-radical initiator and at least one free-radically polymerizable monomer containing halogen or sulfonyl chloride groups under free-radical conditions, and to a reaction product (RP) which can be prepared by the process of the present invention and to the use of the reaction product (RP) as macroinitiator for the preparation of graft copolymers. Furthermore the invention relates to a process for preparing graft copolymers by reaction of the reaction product (RP) with at least one suitable monomer and to graft copolymers which can be prepared by the process of the present invention and also to the use of the graft copolymers of the present invention.Type: GrantFiled: July 14, 2003Date of Patent: September 14, 2004Assignee: BASF AktiengesellschaftInventors: Yvonne Heischkel, Nicolas Stöckel, Philipp Wieland, Marcus Schäfer, Oskar Nuyken
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Patent number: 6774167Abstract: Undesirable changes in shade brought about by low temperatures (Cold Stress Whitening) in impact-modified thermoplastic molding compositions F which comprise at least one elastomeric graft polymer A and at least one thermoplastic polymer B are reduced by adding from 10 to 200 ppm, based on the molding compositions F, of at least one polyorganosiloxane S to the impact-modified thermoplastic molding composition F.Type: GrantFiled: April 25, 2002Date of Patent: August 10, 2004Assignee: BASF AktiengesellschaftInventors: Sabine Oepen, Norbert Niessner, Michael Breulmann, Norbert Güntherberg, Wil Duijzings
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Patent number: 6743862Abstract: The crosslinkable rubber composition is crosslinkable at room temperature, has a gelation time at room temperature of 30 days or less, and can prepare a crosslinked rubber sheet by crosslinking the composition at room temperature, wherein the crosslinked rubber sheet has a tensile elongation of 20% or more, and is free of cracks after treatment at 40° C. in a 50 pphm ozone concentration for 96 hr. Specifically, it comprises an ethylene/&agr;-olefin/non-conjugated polyene random copolymer rubber comprising a norbornene compound having a specific vinyl end group, an SiH group-containing compound, which has at least two SiH groups in one molecule, and optionally a platinum catalyst, a reaction inhibitor and/or a silane-coupling agent. The sealing, potting and coating materials and adhesives of the present invention comprise the above rubber composition.Type: GrantFiled: February 19, 2002Date of Patent: June 1, 2004Assignee: Mitsui Chemicals, Inc.Inventors: Takashi Hakuta, Mitsunao Arino, Yoshiharu Kikuchi, Masaaki Kawasaki
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Patent number: 6737145Abstract: The present invention is concerned with an organic-inorganic composite graded material containing a composite material formed by chemically bonding an organic polymer compound and a metallic compound and having a component graded structure in which the content of the metallic compound continuously changes in the depth direction from the material surface, a process for the production of the above organic-inorganic composite graded material by forming a coating layer composed of a specific coating solution for forming the organic-inorganic composite film on an organic substrate and drying the coating layer under heat, a coating agent composed of the above organic-inorganic composite graded material for forming a coating film, and an article coated with the above coating agent.Type: GrantFiled: June 8, 2001Date of Patent: May 18, 2004Assignees: Ube Nitto Kasei Co., Ltd.Inventors: Toshiya Watanabe, Kazuhito Hashimoto, Akira Fujishima, Kazuyuki Takami, Norihiro Nakayama, Taro Suzuki, Naoki Tanaka, Eisuke Tachibana, Tatsuhiko Adachi
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Patent number: 6730737Abstract: A releasable pressure sensitive adhesive composition comprising: (a) a block copolymer comprising at least one poly(monovinyl aromatic hydrocarbon) block and at least one poly(conjugated diene) block and having a vinyl content of at least 3% by weight, (b) a tackifying resin, and (c) a plasticizer, wherein the block copolymer has been crosslinked through its vinyl groups by means of a reaction with an organohydrogenpolysiloxane crosslinking agent containing at least two hydrogen atoms which are directly bonded to a silicon atom. This is carried out in the presence of a crosslinking catalyst. The plasticizer is present in an amount of from 1 to 50 parts by weight per 100 parts by weight of block copolymer. The releasable adhesive composition can be suitably applied in removable self-adhering memo notes and in removable tapes and labels.Type: GrantFiled: December 22, 1994Date of Patent: May 4, 2004Assignee: Kraton Polymers U.S. LLCInventors: Noel Raymond Maurice De Keyzer, Geert Emiel Anna Vermunicht
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Patent number: 6727039Abstract: A positive photoresist composition comprises (A) a resin containing a specific repeating structural unit such as norbornene structure, the resin being capable of increasing the solution velocity in an alkali developer by the action of acid; and (B) a compound capable of generating an acid by irradiation with one of an actinic ray and radiation.Type: GrantFiled: September 24, 2001Date of Patent: April 27, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Kenichiro Sato
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Patent number: 6727316Abstract: The use of a copolymer (A) preparable by free-radical polymerization of a) at least one olefinically unsaturated monomer and b) at least one olefinically unsaturated monomer different than the olefinically unsaturated monomer (a) and of the general formula I R1R2C═CR3R4 (I), in which the radicals R1, R2, R3 and R4 each independently of one another are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R1, R2, R3 and R4 are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals; in an aqueous medium, in a coating material used to produce surfacer coats and antistonechip primer coats.Type: GrantFiled: December 13, 2001Date of Patent: April 27, 2004Assignee: BASF Coatings AGInventor: Wolfgang Bremser
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Patent number: 6703446Abstract: Hetero-telechelic polymers having the formula: FG—(Q)d—Z—J—[A(R1R2R3)]x (I) wherein FG is a protected or non-protected functional group; Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons, alkenylsubstituted aromatic hydrocarbons, and mixtures thereof; d is an integer from 10 to 200; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; J is oxygen, sulfur, or nitrogen; [A(R1R2R3)]x is a protecting group, wherein A is an element selected from Group IVa of the Periodic Table of Elements; R1, R2, and R3 are each independently selected from the group consisting of hydrogen, alkyl, substituted alkyl groups containing lower alkyl, lower alkylthio, and lower dialkylamino groups, aryl or substituted aryl groups containing lower alkyl, lower alkylthio, and lower dialkylamType: GrantFiled: June 21, 2002Date of Patent: March 9, 2004Assignee: FMC Corporation, Lithium DivisionInventors: James A. Schwindeman, Robert J. Letchford, Conrad W. Kamienski, Roderic P. Quirk
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Publication number: 20040044133Abstract: A radial end-modified styrene-conjugated diene block copolymer having a general formula 1.Type: ApplicationFiled: October 30, 2002Publication date: March 4, 2004Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.Inventors: Young Hoon Ko, Sun Woo Cheen
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Patent number: 6699939Abstract: Hetero-telechelic polymers having the formula: FG—(Q)d—Z—J—[A(R1R2R3)]x (I) wherein FG is a protected or non-protected functional group; Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons, alkenylsubstituted aromatic hydrocarbons, and mixtures thereof; d is an integer from 10 to 200; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; J is oxygen, sulfur, or nitrogen; [A(R1R2R3)]x is a protecting group, wherein A is an element selected from Group IVa of the Periodic Table of Elements; R1, R2, and R3 are each independently selected from the group consisting of hydrogen, alkyl, substituted alkyl groups containing lower alkyl, lower alkylthio, and lower dialkylamino groups, aryl or substituted aryl groups containing lower alkyl, lower alkylthio, and lower dialkylamType: GrantFiled: June 21, 2002Date of Patent: March 2, 2004Assignee: FMC Corporation, Lithium DivisionInventors: James A. Schwindeman, Robert J. Letchford, Conrad W. Kamienski, Roderic P. Quirk
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Patent number: 6667353Abstract: A rubber composition comprised of an elastomer(s) reinforced with a particulate carbon black composite, and a coupling agent. Said carbon black composite contains integral silica on the surface thereof, wherein said carbon black composite is prepared by co-precipitating carbon black and silica from a dispersion of carbon black in sodium silicate to provide integral silica domains on the outer surface of the carbon black. Said carbon black composite is further functionalized by reacting it with a trialkoxy silane. A tire having a component comprised of such rubber composition, such as, for example, a tire tread is contemplated.Type: GrantFiled: December 12, 2000Date of Patent: December 23, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Giorgio Agostini, Thierry Florent Edme Materne
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Patent number: 6645638Abstract: A silicone rubber adhesive composition comprising (A) a heat curable organopolysiloxane composition of the addition curing type or peroxide curing type, (B) reinforcing silica fines, (C) an adhesive agent, and (D) a compound having at least one ester group in a molecule is easily moldable within a short time by injection molding, suitable in primerless molding, and bondable with various thermoplastic resins. Integrally molded articles in which the silicone rubber adhesive composition is firmly bonded to the thermoplastic resin are obtainable without a need for modification of the resin.Type: GrantFiled: July 11, 2001Date of Patent: November 11, 2003Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hironao Fujiki, Syuuichi Azechi
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Patent number: 6635352Abstract: A coating composition includes an organosilicon compound and an adhesion improver made of at least one compound selected from acetylene compounds of the general formulas (I-a) to (I-d): wherein Ra and Rc each independently represents a hydrogen atom or an optionally branched alkyl group having from 1 to 5 carbon atoms; Rb and Rd each independently represents an optionally branched alkyl group having from 2 to 8 carbon atoms; Re and Rf each independently represents an optionally branched alkyl group having from 1 to 3 carbon atoms; m and n each indicate an integer of 1 or more; and m′ and n′ each indicate an integer of 0 or more.Type: GrantFiled: April 23, 2002Date of Patent: October 21, 2003Assignee: Hoya CorporationInventor: Hiroshi Shirakawa
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Patent number: 6602964Abstract: Disclosed herein is a composition comprising: A) a moisture curable polymer selected from the group consisting of silylated polyurethanes, silylated polyethers, and mixtures thereof, and B) a silicone oligomer of the formula: [R3SiO1/2]m[O1/2Si(R)2O1/2]n[SiO3/2R]o[SiO4/2]p (I) wherein: each R is independently selected from the group consisting of B, R1, —OR2, R3, and R4; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by a Si—C bond; each R1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R2 is independently a group as defined for R1 or an acyl group; each R3 is independently a monovalent organic group containing an aliphatic unsaturated hydrocarbon group; each R4 is a monovalent organic group linked to the Si atom of the siloxane oligomer backbone by a Si—C bond that does not include an aliphatic unsaturated hydrocarbon group and that has thereType: GrantFiled: February 4, 2002Date of Patent: August 5, 2003Assignee: Crompton CorporationInventors: Misty Huang, Richard E. Handel, Herbert Petty
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Patent number: 6596402Abstract: Coatings are formed by applying to article a copolymer of a water soluble base polymer having graft polymerized thereto an organic moiety that includes a group that reacts with water to form a silanol group, and then curing the copolymer to form a crosslinked hydrogel coating that is absorbent, lubricious and substantially non-water soluble. Coating compositions, coated articles the subject coatings are also described.Type: GrantFiled: December 29, 2000Date of Patent: July 22, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Dave Soerens, Sohail Malik, Cameron G. Rouns, Sharon L. Greene, Archel A. Ambrosio
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Patent number: 6576082Abstract: The present invention provides a primer composition comprising (A) a vinyl polymer having a main chain substantially comprising vinyl copolymer chain and at least one silicon-containing group having a hydroxy group or a hydrolyzable group bonded to a silicon atom and capable of crosslinking by forming a siloxane bond at the terminal end of the main chain and/or side chain, and (B) (a) a saturated hydrocarbon polymer having at least one silicon-containing group having a hydroxy group or a hydrolyzable group bonded to a silicon atom and capable of crosslinking by forming a siloxane bond, and/or (b) a polybutadiene polymer having at least one silicon containing group having a hydroxy group or a hydrolyzable group bonded to a silicon atom and capable of crosslinking by forming a siloxane bond, which can remarkably improve the adhesion to various kinds of substrates, and which is particularly useful when applied to the isobutylene series sealing material.Type: GrantFiled: March 8, 2001Date of Patent: June 10, 2003Assignee: Kaneka CorporationInventors: Toshihiko Okamoto, Junji Takase
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Patent number: 6569931Abstract: A thermoplastic elastomer composition, method of preparation, and article prepared therefrom. The thermoplastic elastomer composition comprising (A) a thermoplastic elastomer, (B) a thermoplastic resin which has Rockwell hardness (R scale) exceeding 80 at 25° C., (C) a polydiorganosiloxane which has a Williams plasticity exceeding 100 at 25° C.; and (D) an inorganic filler.Type: GrantFiled: May 3, 2001Date of Patent: May 27, 2003Assignees: Dow Corning Corporation, Dow Corning Toray Silicone Co., Ltd.Inventors: Haruhiko Furukawa, Yoshitsugu Morita, Kevin Edward Lupton, David Joseph Romenesko
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Patent number: 6569942Abstract: There is disclosed a rubber composition comprising: (A) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (B) 1.5 to 50 phr of a silicon coupled oligomer of the formula: where R1 and 2 are individually selected from the group consisting of where R3 is selected from the group consisting of alkyls having 1 or 4 carbon atoms; w is an integer of from 9 to 149, x is an integer of from 1 to 100, y is an integer of from 1 to 100, and z is an integer of from 1 to 100 with the proviso that the sum total of x, y and z in each R1 and R2 ranges from 3 to 100.Type: GrantFiled: February 25, 2002Date of Patent: May 27, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Marc Weydert, Wolfgang Lauer, Friedrich Visel, Rene Jean Zimmer, Francois Kayser
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Patent number: 6566480Abstract: A halogen-substituted reactive polysiloxane compound has a number average molecular weight of 400 to 100,000 and is represented by the formula Y—{C(R3)(R4)}c—CH2CH2—Si(R1)(R2)—{O—Si(R1)(R2)}d—CH2CH2—{C(R3)(R4)}c—Y, in which Y is (X)a(R)bSi or (X)c(R1)f—Bz—C(R5)i(X)j; X is a halogen atom selected from F, Cl, Br and I; R is an alkyl group from C1 to C20 including methyl, ethyl or propyl; R1, R3, R4 and R5 are a hydrogen, an alkyl group from C1 to C20 including methyl, ethyl or propyl, or a halogen-substituted alkyl or silane group; R2 is defined as R1, or (X)g(R3)hC—{C(R3)(R4)}c; a is an integer from 1 to 3, and b is an integer from 0 to 2, wherein a+b=3; c is an integer from 0 to 1000; d is an integer from 1 to 50000; e and f are independently an integer from 0 to 4, wherein e+f=4; g and h are independently an integer from 0 to 3, wherein g+h=3; i and j are independentlyType: GrantFiled: March 23, 2001Date of Patent: May 20, 2003Assignees: Korea Kumho Petrochemical Co., Ltd., Korea Research Institute of Chemical TechnologyInventors: Young-Hoon Ko, Eun-Kyoung Kim, Hyoung-Suk Cho
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Patent number: 6562929Abstract: An objective of the invention is to provide a conjugated diene-based rubber having a specific composition and a method of producing the same, an oil extended rubber using the same, as well as a rubber composition capable of being converted into a vulcanized rubber which has a low rolling resistance, an excellent wearing resistance and the like, and is useful, for example, as a tire or the like. A conjugated diene-based rubber in the invention has a glass transition point of −60 to 0° C., an olefinically unsaturated nitrile monomer unit randomly contains in its molecular chain, its repeating units consists of 9 to 30% by mass of an olefinically unsaturated nitrile monomer unit such as acrylonitrile, 10 to 50% by mass of an aromatic vinyl monomer unit such as styrene and 20 to 81% by mass of a conjugated diene monomer unit such as 1,3-butadiene, and its Mooney viscosity [ML1+4(100° C.)] is 20 to 200.Type: GrantFiled: August 29, 2001Date of Patent: May 13, 2003Assignee: JSR CorporationInventors: Tomohisa Konno, Yoshiyuki Udagawa, Toshihiro Tadaki
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Patent number: 6558805Abstract: The present invention relates to an anionic polymerization technique for synthesizing functionalized rubbery polymers containing polysiloxane that have excellent characteristics for utilization in (a) tire tread compounds that are highly loaded with silica, (b) shiny tire side-wall compounds, and (c) tire building bladders having improved mold release characteristics. The rubbery polymers of this invention can optionally be coupled with tin halides or silicon halides to further improve the characteristics of the rubber for use in tire tread compounds.Type: GrantFiled: October 3, 2001Date of Patent: May 6, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Abderrahim Khadir, Adel Farhan Halasa, Wen-Liang Hsu
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Patent number: 6548599Abstract: There is disclosed a rubber composition comprising: (A) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (B) 1.Type: GrantFiled: February 18, 2002Date of Patent: April 15, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Marc Weydert, Wolfgang Lauer, Friedrich Visel, Rene Jean Zimmer, Francois Kayser
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Patent number: 6548573Abstract: A water and mud repellant compound is provided for frictionally engaged rubber surfaces, such as treads, and, in particular, to a compound for use in the manufacture of a rubber track belt on a mobile track system of a tractor.Type: GrantFiled: December 20, 1999Date of Patent: April 15, 2003Assignee: Caterpillar IncInventor: Carl H. Rempert
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Patent number: 6544642Abstract: The present invention relates to a disposable absorbent articles such as diapers and sanitary napkins which are provided with adhesives for attachment of the article to the skin. In particular the present invention relates to adhesives which provide secure attachment and are pleasing to the skin upon application, yet cause no discomfort upon removal. In particular the present invention relates to an adhesive which provide secure attachment to oily and greasy skin. Preferably the adhesive also provides secure attachment under moist and wet skin conditions and which maintains adhesive peel strength even under exposure to excess water.Type: GrantFiled: July 27, 2001Date of Patent: April 8, 2003Assignee: The Procter & Gamble CompanyInventors: Fabio Cinelli, Antonello Colaianni, Adelia Alessandra Tordone, Hugh Semple Munro, Brian John Tighe
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Patent number: 6528585Abstract: The invention relates to a process for preparing crosslinkable polymers containing silane groups having at least one hydrolyzable radical by free-radical-initiated grafting of the base polymers with an olefinically unsaturated silane having at least one hydrolyzable radical, wherein the grafting is carried out in the presence of (a) an alkylsilane of the formula I, R1(SiR2nX3−n)m, (I) where R1 is a monovalent hydrocarbon radical having from 1 to 33 carbon atoms or a divalent hydrocarbon radical having from 4 to 24 carbon atoms, R2 is a hydrocarbon radical having from 1 to 10 carbon atoms, X are identical or different hydrolyzable radicals, n is 0, 1 or 2 and m is 1 or 2 and/or (b) a fluoroalkylsilane of the formula R3xSiR4yXz, (II) where R3 is a fluoroalkyl radical, R4 is an alkyl radical and X is a hydrolyzable radical, x is an integer from 1 to 3, y is 0, 1 or 2 and z is an integer from 1 to 3, with the proviso that the sum x+y+z&equaType: GrantFiled: July 19, 2001Date of Patent: March 4, 2003Assignee: Degussa AGInventors: Burkhard Standke, Jaroslaw Monkiewicz, Albert-Johannes Frings, Ralf Laven, Roland Edelmann, Peter Jenkner, Helmut Mack, Michael Horn
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Patent number: 6524716Abstract: There is disclosed a method for the preparation of a diene polymer interpenetrated with a polysiloxane comprising the polymerization of (A) at least one silane monomer of the formula: (B) at least one silane monomer of the formula: (C) at least one diene monomer, said polymerization being conducted in the presence of an anionic base, an inert solvent and a polymerization initiator, wherein each R1 is independently selected from the group consisting of alkyl radicals having from 1 to 4 carbon atoms and aryl radicals having 6 carbon atoms and R2 is selected from the group consisting of where x is an integer of from 1 to 8.Type: GrantFiled: July 13, 2001Date of Patent: February 25, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Friedrich Visel, Wolfgang Lauer, Marc Weydert
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Patent number: 6521733Abstract: A tapered aromatic vinyl-conjugated diene copolymer rubber having a ratio W0.6Mp/WMp in the range of 0.65-0.9 or 1.1-1.3 wherein Mp is molecular weight of a copolymer molecule corresponding to the peak of a molecular weight distribution curve obtained by gel permeation chromatography, WMp is a weight fraction of aromatic vinyl monomer units in the copolymer molecule having a molecular weight Mp, and W0.6Mp is a weight fraction of aromatic vinyl monomer units in a copolymer molecule having a molecular weight of Mp×0.6. A coupled tapered rubber comprised of a plurality of tapered copolymer molecules which are bound together at molecule terminal. A rubber composition comprising this tapered rubber or coupled tapered rubber and natural rubber or a synthetic rubber. This rubber composition exhibits reduced heat build-up, and high wet skid resistance, tensile strength and abrasion resistance.Type: GrantFiled: February 11, 2002Date of Patent: February 18, 2003Assignee: Zeon CorporationInventor: Takeshi Karato
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Publication number: 20030032746Abstract: Hetero-telechelic polymers having the formula:Type: ApplicationFiled: June 21, 2002Publication date: February 13, 2003Inventors: James A. Schwindeman, Robert J. Letchford, Conrad W. Kamienski, Roderic P. Quirk
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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: 6497960Abstract: The resin composition for a skin member according to the present invention comprises a completely or partially crosslinked olefin thermoplastic elastomer (A) in an amount of 100 parts by weight, an organopolysiloxane (B) having a viscosity (JIS K2283, 25° C.) of not less than 1×106 cSt, preferably 1×106 to 1×108 cSt in an amount of 2 to 20 parts by weight, an organopolysiloxane (C) having a viscosity (JIS K2283, 25° C.) of not less than 10 cSt and less than 1×106 cSt in an amount of 0.5 to 5 parts by weight, and optionally, a polyolefin resin (D) in an amount of 5 to 150 parts by weight and/or a fluoropolymer (E) in an amount of 0.5 to 10 parts by weight. The other resin composition for a skin member according to the invention comprises a completely or partially crosslinked olefin thermoplastic elastomer (A) in an amount of 100 parts by weight, a fluoropolymer (E) in an amount of 0.Type: GrantFiled: July 20, 1999Date of Patent: December 24, 2002Inventors: Kyoko Kobayashi, Masato Karaiwa, Kunihiko Mizumoto, Akira Uchiyama
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Patent number: 6465547Abstract: A moisture-crosslinkable polyolefin material, comprising a silane-grafted polyolefin blend, and coatings or insulations, including heat-shrinkable coatings and insulations, prepared therefrom. The coating material is formed by a process comprising: (a) reacting a pre-blended mixture of polyolefin and polypropylene, or higher polyolefin, resins and optional compatibilizing agent, with an appropriate silane and silane-grafting initiator to produce a silane-modified polyolefin blend composition; (b) forming the coating or insulating material by melt processing the composition produced in step (a) with a silanol condensation catalyst; and (c) crosslinking the formed coating or insulating material by exposing it to moisture, preferably at an elevated temperature.Type: GrantFiled: July 24, 2001Date of Patent: October 15, 2002Assignee: Shawcor Ltd.Inventors: Peter Jackson, Amarjit Tathgur, Marcus P. Heydrich, Dilip K. Tailor, Robert Edward Steele
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Patent number: 6465107Abstract: A silicone-containing resin, film and film on a subweb are described. The resin and film are formed from (i) polyolefin, (ii) dimethyl polysiloxane having functional end-groups, (iii) vinyl silane compound, and (iv) ultra-high molecular weight silicone polymer optionally using (v) an organo-peroxide agent and (vi) an organo-metallic moisture curing agent. Resins consisting essentially of (a) functionalized polyolefins; (b) dimethyl polysiloxanes having functional end-groups to react with said functionalized polyolefins; (c) ultra-high molecular weight silicone and optional organo-metallic moisture curing agent and films or multilayer structures made therefrom are also described. The film is suitable for use in release films and in liquid-absorbing products.Type: GrantFiled: September 28, 2000Date of Patent: October 15, 2002Assignee: DuPont Canada Inc.Inventor: Peter Yates Kelly
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Publication number: 20020132185Abstract: Improved resolution photoresist compositions which are capable of high resolution lithographic performance using 193 nm imaging radiation (and possibly also with other imaging radiation) are obtained by use of imaging copolymers which are improvements over known alternating copolymer-based photoresists. The copolymers are characterized by the presence of an alkyl-functionalized cyclic olefin third monomeric unit which enhances the resolution of the photoresist. The performance of the compositions may be further enhanced by the use of bulky acid-labile protecting groups on the imaging copolymer.Type: ApplicationFiled: May 8, 2002Publication date: September 19, 2002Applicant: International Business Machines CorporationInventors: Robert D. Allen, Phillip Joe Brock, Richard Allen DiPietro, Hiroshi Ito, Pushkara Rao Varanasi
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Patent number: 6417271Abstract: A vulcanized, olefinic elastomer composition comprising (A) 1 to 99 parts by weight of an ethylene-&agr;-olefin copolymer prepared using a metallocene catalyst which copolymer comprises an ethylene unit and an &agr;-olefin unit having 3 to 20 carbon atoms and (B) 1 to 99 parts by weight of a polypropylene resin, provided that the total amount of the components (A) and (B) is 100 parts by weight, wherein (C) a polyorganosiloxane having a dynamic viscosity at 25° C. of at least 5,000 centistokes is contained in a proportion of 0.01 to 20 parts by weight per 100 parts by weight of a total of the components (A) and (B).Type: GrantFiled: March 31, 2000Date of Patent: July 9, 2002Assignee: Asahi Kasei Kabushiki KaishaInventors: Hajime Nishihara, Shinichi Shibayama, Naohiko Sato
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Patent number: 6407165Abstract: A method for increasing the damping properties of tire rubber comprising the steps of adding an unsaturated damping additive to a vulcanizable composition of matter, and processing the vulcanizable composition of matter containing the damping additive into tire rubber.Type: GrantFiled: February 18, 1999Date of Patent: June 18, 2002Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, Michael W. Hayes, Peyman Pakdel
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Patent number: 6407174Abstract: The present invention relates to a thermoplastic elastomer vulcanizate obtained from a thermoplastic propylene/ethylene/&agr;-olefin terpolymer, a rubber component and optional additives, by dynamic vulcanization of the rubber component with a non-peroxide curing system. The vulcanizate has both superior physical properties and excellent processability.Type: GrantFiled: May 23, 2000Date of Patent: June 18, 2002Assignee: Advanced Elastomer Systems, L.P.Inventor: Trazollah Ouhadi
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Patent number: 6407166Abstract: A vulcanizate that has improved damping properties where the vulcanizate is prepared by the steps comprising blending an unsaturated damping additive within a vulcanizable composition of matter, wherein the vulcanizable composition of matter includes a vulcanizable elastomer, and effecting vulcanization of the elastomer.Type: GrantFiled: February 18, 1999Date of Patent: June 18, 2002Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, Edward D. Kelley, Tatsuro Hamada, Michael W. Hayes
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Patent number: 6395856Abstract: Oligomers of the formula: [R3SiO1/2]m[O1/2Si(R2)O1/2]n[SiO3/2R]o[SiO4/2]p (I) wherein each R is selected individually from the group consisting of B, R1, —OR2, R3 and R4; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R1 is independently a saturated aliphatic hydrocarbon group of 1 to 16 carbon atoms; each R2 is independently a group as defined for R1, an aromatic hydrocarbon group or an acyl group; each R3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by an Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from aromatic hydrocarbon, ether, ester, carbamate, thioether, polysulfide, blocked mercaptan, amide, epoxy, cyano anType: GrantFiled: December 2, 1999Date of Patent: May 28, 2002Assignee: Crompton CorporationInventors: Herbert E. Petty, Robert Pickwell, Frederick D. Osterholtz, Shiu-Chin Huang Su
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Patent number: 6383648Abstract: The present invention has its objects to provide a curable composition for top coating which has an excellent stain resistance, adhesiveness, solvent resistance and impact resistance.Type: GrantFiled: December 30, 1999Date of Patent: May 7, 2002Assignee: Kaneka CorporationInventors: Hitoshi Tamai, Masaharu Inoue
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Patent number: 6362279Abstract: An ecological fire retardant blend of thermoplastics is provided. That is, to one or more organic polymers is added one or more preceramic oligomers or preceramic polymers to provide a blend of polymers of reduced flammability which do not significantly increase the levels of smoke, carbon monoxide or other toxics during combustion. In one example a preceramic polymer, eg. a polysilane resin is added to a polyolefin to provide an ecological fire retardant blend per the invention.Type: GrantFiled: December 18, 1998Date of Patent: March 26, 2002Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Joseph D. Lichtenhan, Jeffrey W. Gilman
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Patent number: 6355757Abstract: The invention is directed to essentially saturated hydrocarbon polymer composition comprising essentially saturated hydrocarbon polymers having A) a backbone chain, B) a plurality of essentially hydrocarbyl sidechains connected to A), said sidechains each having a number-average molecular weight of from 2500 Daltons to 125,000 Daltons and a MWD by SEC of 1.0-3.5; and having A) a Newtonian limiting viscosity (&eegr;0) at 190° C. at least 50% greater than that of a linear olefinic polymer of the same chemical composition and weight average molecular weight, preferably at least twice as great as that of said linear polymer, B) a ratio of the rubbery plateau modulus at 190° C. to that of a linear polymer of the same chemical composition less than 0.5, preferably <0.3, C) a ratio of the Newtonian limiting viscosity (&eegr;0) to the absolute value of the complex viscosity in oscillatory shear (&eegr;*)at 100 rad/sec at 190° C.Type: GrantFiled: February 6, 1998Date of Patent: March 12, 2002Assignee: ExxonMobil Chemical Patents, Inc.Inventors: Cesar A. Garcia-Franco, David J. Lohse, Robert A. Mendelson, Lewis J. Fetters, Scott T. Milner, Nikos Hadjichristidis, David W. Mead
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Patent number: 6347408Abstract: Powder-free natural rubber and synthetic elastomer gloves having an inner coating of a cross-linked polyurethane impregnated with silicone and their method of manufacture are described. The gloves exhibit good grippability, good donnability as measured by their wet and dry coefficient of friction, tensile strength, elongation to break and stress at 500% modulus.Type: GrantFiled: November 5, 1998Date of Patent: February 19, 2002Assignee: Allegiance CorporationInventor: Yun-Siung Tony Yeh
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Patent number: 6344521Abstract: Terminally functionalized silicone triblock copolymers prepared using protected functionalized initiators and processes for preparing the same. The silicone triblock copolymers includes protected, functionalized silicone diene and/or alkenylsubstituted aromatic copolymers. The protected functionalized copolymers can be optionally deprotected to afford functionalized silicone diene and/or alkenylsubstituted aromatic copolymers.Type: GrantFiled: January 10, 2000Date of Patent: February 5, 2002Assignee: FMC CorporationInventors: James Anthony Schwindeman, Robert James Letchford
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Publication number: 20020002241Abstract: Polyolefin fibers and polyolefin yarns of high strength and elongation and textile fabrics produced therefrom, which consist of modified propylene polymers, unmodified propylene polymers and adjuvants, are produced by melting the polyolefin mixtures in the extruder, transferring the melt by extrusion pumps to the spinnerets and drawing off the extruded filaments by high-speed galettes and/or winders.Type: ApplicationFiled: December 8, 2000Publication date: January 3, 2002Applicant: Borealis GmbHInventors: Manfred Raetzsch, Ulf Panzer, Achim Hesse, Norbert Reichelt, Manfred Kirchberger, Peter Niedersuess, Anton Wolfsberger