Nitrogen Containing Chemical Treating Agent Patents (Class 525/332.7)
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Patent number: 10040315Abstract: Pneumatic tire wherein a rubber layer (A) is disposed as an inner liner at an innermost layer side of the tire, and a rubber layer (B) disposed between the above inner liner and a carcass ply layer and adjacent to the above inner liner comprises a rubber composition containing a natural rubber alone or a natural rubber and a synthetic diene rubber as a rubber component, wherein rubber layer (A) contains a butyl rubber alone or a blend rubber of a diene rubber and a specific amount of a butyl rubber as a rubber component; rubber layer (B) contains a bismaleimide compound as a cross-linking agent, sulfur and a vulcanization accelerator; a blend amount of the sulfur and a blend amount of the vulcanization accelerator are modified to specific ranges; and an elongation at break after subjected to air heat aging at 100° C. for 250 hours is 150% or more.Type: GrantFiled: March 19, 2014Date of Patent: August 7, 2018Assignee: BRIDGESTONE CORPORATIONInventor: Takahiro Saito
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Patent number: 9902858Abstract: A nonlinear optical dye includes a compound represented by the general formula (1) below. In the above general formula (1), each of X1, X2, X3 and X4 independently represents a hydrogen atom, an alkyl group having a carbon number of 1 to 6, a halogen atom, a hydroxyl group, a nitro group, a cyano group, or a methylsulfonyl group. In the present invention, it is preferred that each of X1, X2, X3 and X4 independently represents a hydrogen atom, an alkyl group having a carbon number of 1 to 6, or a halogen atom. In the present invention, it is also preferred that the nonlinear optical dye has a dipole moment of 2.1 D or less and a maximum absorption wavelength within a range of 315 to 360 nm.Type: GrantFiled: April 21, 2016Date of Patent: February 27, 2018Assignee: TOYO KOHAN CO., LTD.Inventor: Sakiko Miura
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Patent number: 9234304Abstract: The present invention relates to composite elastomeric yarns and fabrics, to methods of making same, and to articles in which such yarns and fabrics are used. The composite yarns of the present invention comprise a elastomeric core, an elastomeric thermoplastic sheath disposed about the core and, preferably, fibers mechanically anchored in the sheath. The composite fabrics of the present invention comprise the composite yarns of the present invention and conventional fibers arranged to form a fabric.Type: GrantFiled: June 6, 2013Date of Patent: January 12, 2016Assignee: The Quantum Group, Inc.Inventor: Jeffrey W Bruner
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Patent number: 9187620Abstract: A rubber composition for the manufacture of tires, based on one or more diene elastomers, on one or more reinforcing fillers and on a vulcanization system, characterized in that the said vulcanization system comprises one or more thiadiazole compounds of formula:Type: GrantFiled: October 8, 2010Date of Patent: November 17, 2015Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.Inventors: Anne Veyland, Nicolas Seeboth, Jose Carlos Araujo Da Silva
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Patent number: 9163127Abstract: Disclosed is a rubber composition suitable for use as a cap ply rubber composition. The rubber composition comprises: (a) at least one natural or synthetic rubbery polymer; (b) from 0.1 to 20 phr of at least one hydrazide compound; (c) from 0.1 to 10 phr of at least one methylene donor; (d) from 0.1 to 10 phr of at least one methylene acceptor resin; and (e) from 0.1 to 10 phr of zinc oxide. A method of making the same is also disclosed.Type: GrantFiled: January 18, 2012Date of Patent: October 20, 2015Assignee: Bridgestone Americas Tire Operations, LLCInventors: Natalie Weingart, David R. Stewart, Jamie J. McNutt, Tomohiro Kusano
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Patent number: 9096557Abstract: A thiadiazole of formula (I):Type: GrantFiled: October 8, 2010Date of Patent: August 4, 2015Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.Inventors: Nicolas Seeboth, Sergey Ivanov
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Publication number: 20150031792Abstract: Disclosed is a method of preparing a rubber composition comprising the steps of (a) blending in at least one preparatory mixing step at least one natural or synthetic rubbery polymer, a silica filler, a silica coupling agent, and at least one vulcanization accelerator; and (b) subsequently blending therewith in a final mixing step a sulfur curative, wherein the average glass transition temperature of the polymer(s) is ?55° C. or less.Type: ApplicationFiled: July 25, 2012Publication date: January 29, 2015Inventor: Maryangel G. Dunlavy
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Patent number: 8822604Abstract: The invention provides a rubber composition for golf balls which includes: (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %; (B) an unsaturated carboxylic acid and/or a metal salt thereof; (C) an anthranilic acid derivative of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 4, and n is an integer from 1 to 3, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different; and (D) sulfur. The rubber composition for golf balls of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.Type: GrantFiled: December 11, 2012Date of Patent: September 2, 2014Assignees: Bridgestone Sports Co., Ltd., Bridgestone CorporationInventors: Yuichiro Ozawa, Tsuyoshi Nakajima, Yusuke Yamagata, Teppei Mori, Takahiro Iwai
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Patent number: 8802788Abstract: Rubber composition for golf balls which includes: (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %; (B) an unsaturated carboxylic acid and/or a metal salt thereof; (C) an anthranilic acid derivative of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 4, and n is an integer from 1 to 3, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different; and (D) an organic peroxide having a one-minute half-life temperature which is at least 158° C. and less than 175° C. The rubber composition for golf balls of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.Type: GrantFiled: December 11, 2012Date of Patent: August 12, 2014Assignees: Bridgestone Sports Co., Ltd., Bridgestone CorporationInventors: Tsuyoshi Nakajima, Yuichiro Ozawa, Yusuke Yamagata, Teppei Mori, Takahiro Iwai
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Patent number: 8796387Abstract: It is to provide a high-elasticity rubber composition having a good workability while preventing the deterioration of rubber properties and capable of reducing rubber burning as far as possible by using a vulcanization accelerator having a retarding effect equal to or more than that of DCBS without using a retarder such as CTP possibly causing the deterioration of rubber properties after the vulcanization and problems such as blooming and the like and capable of realizing a higher elasticity and excellent low heat-buildup. The rubber composition according to the invention is characterized by comprising a rubber component, a sulfenamide-based vulcanization accelerator represented by a formula (I), a bismaleimide derivative represented by a formula (II) and sulfur.Type: GrantFiled: August 17, 2009Date of Patent: August 5, 2014Assignee: Bridgestone CorporationInventor: Yoshitaka Satou
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Patent number: 8772414Abstract: The invention provides a composition comprising an ethylene/?-olefin/non-conjugated diene interpolymer, which has the following properties: an Mz(abs)/Mz(Conv) value greater than 1.35; an Mz(BB)/Mw(abs) value greater than 1.6; and a non-conjugated diene content less than 10 weight percent, based on the total weight of the interpolymer.Type: GrantFiled: September 16, 2009Date of Patent: July 8, 2014Assignee: Dow Global Technologies LLCInventors: Wenbin Liang, Brian W. Walther, Gary R. Marchand
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Patent number: 8759449Abstract: The invention relates to a wiper rubber for windshield wipers, which contains at least one rubber component that is cured by vulcanization, the material of the wiper rubber containing, at least in the unvulcanized state, a combination of a cross-linking agent with sulfur and/or with a sulfur donor.Type: GrantFiled: November 11, 2008Date of Patent: June 24, 2014Assignee: Robert Bosch GmbHInventors: Eric Pieters, Reiner Lay, Harald Kleinknecht, Hilde Parton
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Patent number: 8735511Abstract: A curing resin composition that cures in two stages: photo cure and thermal cure, hardly contaminates a liquid or liquid crystals when in contact with, and provides high adhesive strength, particularly a curing composition that photocures sufficiently even when shadowed by TFT wires, a black matrix, etc. in photocuring; and a sealant, a sealant for ODF (one-drop-fill), and an LCD containing the curing resin composition.Type: GrantFiled: April 20, 2011Date of Patent: May 27, 2014Assignee: Adeka CorporationInventors: Hirokatsu Shinano, Hiroya Fukunaga, Kazuyuki Itano
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Publication number: 20140080979Abstract: The purpose of the present invention is to provide: an anti-vibration rubber composition which enables the production of a hardened rubber article having excellent heat resistance, compression set, low dynamic magnification, tensile properties (elongation, strength), low-temperature properties and workability (scorch resistance); and an anti-vibration rubber which is produced by hardening the rubber composition. The anti-vibration rubber composition is characterized by comprising a rubber component mainly composed of a diene rubber, a bismaleimide compound as a vulcanizing agent, and N-phenyl-N-(trichloromethylthio)benzenesulfoneamide.Type: ApplicationFiled: May 31, 2012Publication date: March 20, 2014Applicant: BRIDGESTONE CORPORATIONInventor: Masaaki Yamamoto
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Patent number: 8609251Abstract: The rubber composite was fabricated by use of direct vulcanization adhesion method with a sulfenamide-based vulcanization accelerators, and the sulfenamide-based vulcanization accelerator is used for a rubber composite using a sulfenamide compound as a vulcanization accelerator, the adhesion properties of the steel cord/rubber adhesion boundary surface and the anti-scorch properties can be achieved simultaneously, the sulfenamide-based vulcanization accelerator being such that the bond order between an amine generated form the sulfenamide compound and a surface of a metal material is zero, and the distance of the S—N (amine moiety) bond of the sulfenamide compound is less than 1.67 ?, and the electric charge on N of the amine radical generated as a result of dissociation of the S—N bond is ?0.295 or less.Type: GrantFiled: September 11, 2009Date of Patent: December 17, 2013Assignee: Bridgestone CorporationInventors: Masashi Ohtsuki, Yoshitaka Sato
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Patent number: 8609252Abstract: A rubber composition comprises a rubber component, sulfur and a sulfeneamide base vulcanization accelerator represented by the following Formula (I), and has an excellent adhesive property with metal such as a steel cord without bringing about problems such as deteriorating in the physical properties and blooming of rubber after vulcanization. (wherein R1 represents a branched alkyl group having 3 to 12 carbon atoms; R2 represents a linear alkyl group having 1 to 10 carbon atoms or a branched alkyl group having 3 to 10 carbon atoms; x represents an integer of 1 or 2, and n represents an integer of 0 or 1).Type: GrantFiled: December 26, 2008Date of Patent: December 17, 2013Assignee: Bridgestone CorporationInventor: Yoshitaka Satou
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Patent number: 8584725Abstract: The invention relates to a cured rubber composition, its preparation and a tire with a component of such rubber composition.Type: GrantFiled: September 17, 2010Date of Patent: November 19, 2013Assignee: The Goodyear Tire & Rubber CompanyInventors: Bruce Raymond Hahn, Rebecca Lee Dando, Larry Ashley Gordon
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Patent number: 8420220Abstract: A rubber composition comprising 0.3 to 10 parts by mass of sulfur and 0.1 to 10 parts by mass of a sulfeneamide base vulcanization accelerator represented by the following Formula (I) based on 100 parts by mass of a rubber component: (wherein R1 to R10 are a hydrogen atom, a linear alkyl group having 1 to 4 carbon atoms or a branched alkyl group having 3 to 4 carbon atoms, and they may be the same or different; R11 is a hydrogen atom, a linear alkyl group having 1 to 10 carbon atoms or a branched alkyl group having 3 to 10 carbon atoms; R12 to R15 are a hydrogen atom, a linear alkyl group or alkoxy group having 1 to 4 carbon atoms or a branched alkyl group or alkoxy group having 3 to 4 carbon atoms, and they may be the same or different; and x represents an integer of 1 or 2).Type: GrantFiled: March 4, 2009Date of Patent: April 16, 2013Assignee: Bridgestone CorporationInventor: Yoshitaka Satou
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Patent number: 8420738Abstract: A thermoplastic elastomer composition which has excellent cleanability and is suitable for use as a medical rubber supply. It is characterized by comprising a rubber ingredient dynamically crosslinked with a crosslinking agent and a matrix which comprises a thermoplastic resin and in which the crosslinked rubber ingredient has been dispersed, the crosslinking agent comprising a triazine derivative.Type: GrantFiled: October 2, 2008Date of Patent: April 16, 2013Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Hiroaki Nakano, Hideyuki Okuyama
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Patent number: 8378035Abstract: An object of the present invention is, in a thermoplastic elastomer composition in which a modified rubber is filled and dispersed in a polyamide resin matrix in order to improve the low-temperature durability of the polyamide resin, to reduce the extrusion load during extrusion molding thereof into a film without deteriorating the low-temperature durability. The present invention is a thermoplastic elastomer composition (E) comprising a modified polyamide resin (C) and a modified rubber (D) dispersed in the modified polyamide resin (C), the modified polyamide resin (C) being a resin obtained by melt-blending an polyamide resin (A) and a compound (B) capable of reacting with a terminal amino group of a polyamide resin, wherein the modified rubber (D) has an acid anhydride group or epoxy group and is dynamically cross-linked by a compound (F) having at least one disulfide bond and at least two amino groups.Type: GrantFiled: August 2, 2010Date of Patent: February 19, 2013Assignee: The Yokohama Rubber Co., Ltd.Inventors: Koichi Kawaguchi, Naoyuki Morooka
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Patent number: 8367779Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) an anthranilic acid derivative of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 4, and n is an integer from 1 to 3, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.Type: GrantFiled: November 21, 2011Date of Patent: February 5, 2013Assignees: Bridgestone Sports Co., Ltd., Bridgestone CorporationInventors: Yuichiro Ozawa, Tsuyoshi Nakajima, Yusuke Yamagata, Teppei Mori, Takahiro Iwai
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Patent number: 8236882Abstract: A rubber mixture which exhibits reliable processability contains (A) a rubber or mixture of rubbers, (B) a filler, (C) at least one organosilane, (D) a thiuram accelerator, and (E) a nitrogen-containing co-activator. A weight ratio of thiuram accelerator (D) to nitrogen-containing co-activator (E) is equal to or greater than 1.Type: GrantFiled: November 19, 2004Date of Patent: August 7, 2012Assignee: Evonik Degussa GmbHInventors: Oliver Klockmann, Andre Hasse, Hans-Detlef Lughinsland
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Patent number: 8198378Abstract: The present invention relates to a preparation method of aromatic organosulfur functionalized 1,4-cis polybutadiene comprising: polymerizing 1,3-butadiene or butadiene derivative in the presence of a specific catalyst in a nonpolar solvent to prepare 1,4-cis polybutadiene; and reacting the resultant polybutadiene with an aromatic organosulfur compound. Such prepared aromatic organosulfur functionalized 1,4-cis polybutadiene is without ultrahigh molecular weight region and, thus, has narrow molecular weight distribution.Type: GrantFiled: October 20, 2008Date of Patent: June 12, 2012Assignee: Korea Kumho Petrochemical Co., Ltd.Inventors: Gwang Hoon Kwag, Pil Sung Kim, Seung Hwon Lee, Hyung Kyu Choi, Hyun Jin Kim
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Patent number: 8183327Abstract: The present invention provides: a rubber composition for a tire having favorable productivity, excellent heat aging resistance and abrasion resistance, and excellent fuel economy; and a pneumatic tire using the rubber composition. The rubber composition contains neither soluble sulfur nor insoluble sulfur, and contains diene rubber, 1-15 parts by mass of compound 1 represented by formula (1) and 0.1-5 parts by mass of compound 2 represented by formula (2), per 100 parts by mass of the diene rubber, and the amount ratio of compound 1 to compound 2 (compound 1/compound 2) is 1-8. wherein R1-R4 are the same or different, and represent C1-20 alkyl, C6-20 aryl, or C7-20 aralkyl, and n represents an integer of 1-12; wherein R5-R7 are the same or different, and represent C5-12 alkyl, x and y are the same or different, and represent an integer of 2-4, and m represents an integer of 0-10.Type: GrantFiled: September 23, 2010Date of Patent: May 22, 2012Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Kazuo Hochi
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Patent number: 8110634Abstract: Sulfenamide derivatives of 4-alkyl substituted 2-mercapto benzothiazole (4m-MBT) as accelerators used in vulcanizable rubber composition having improved ‘Reversion Resistance’ and ‘Modulus & Hardness Stabilization’ properties for sulphur vulcanized tire compounds predominantly based on Natural Rubber or its blends with Polybutadiene (BR) and styrene butadiene rubber (SBR) in which Natural Rubber is the major component thereby improving the overall tire performance, ride safety and tyre service life.Type: GrantFiled: July 23, 2007Date of Patent: February 7, 2012Assignee: Nocil, LtdInventors: Chandrashekhar Shankar Inamdar, Chinmoy Nandi, Narendra Digambar Gangal
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Patent number: 8071676Abstract: A primary modified polymer composed of (1) a hydrogenated polymer obtained by hydrogenating at least one non-hydrogenated polymer selected from the group consisting of polymers comprising conjugated diene monomer units and copolymers comprising conjugated diene monomer units and vinyl aromatic monomer units and (2) groups of a primary modifier having a functional group which are bonded to the polymer (1), which has a specific vinyl aromatic monomer unit content, a specific vinyl aromatic polymer block content, a specific weight-average molecular weight, and a specific degree of hydrogenation of the double bonds of conjugated diene monomer units; a secondary modified polymer obtained by reacting a primary modified polymer composed of (?) a base polymer and (?) groups of a primary modifier having a functional group which are bonded to the polymer (?) with a secondary modifier; and compositions comprising the primary or secondary modified polymer and at least one other component.Type: GrantFiled: December 22, 2008Date of Patent: December 6, 2011Assignee: Asahi Kasei Chemicals CorporationInventors: Takaaki Matsuda, Shigeki Takayama, Toshinori Shiraki, Shigeo Nakajima, Yasuhiro Kusanose
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Patent number: 8030411Abstract: Embodiments of the disclosed polymer composition comprise a first unsaturated polymer or polymer precursor, and an effective amount of a peptizer. The peptizer typically comprises a heteroaryl or a heterocyclic compound, other than morpholine as disclosed in assignee's prior applications. Disclosed polymer compositions are useful for making sports equipment, such as at least one layer of a golf ball, often a core. Because the compositions are useful for making golf balls, materials commonly known for making such golf balls can be used in combination with the polymer composition. A method for forming a golf ball also is disclosed. The method comprises providing disclosed compositions and then forming at least one component of a golf using the composition.Type: GrantFiled: December 15, 2006Date of Patent: October 4, 2011Assignee: Taylor Made Golf Company, Inc.Inventors: Hyun J. Kim, Hong G. Jeon
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Patent number: 7987880Abstract: The rubber composition for a tire base tread includes a rubber component containing not less than 15% by weight of a terminal-modified diene rubber having a number average molecular weight prior to modification of 150000 to 400000, a filler, and a compound (vulcanizing agent) represented by the following general formula (1) in an amount of 0.5 to 5 parts by weight based on 100 parts by weight of the rubber component: (wherein R represents a benzyl group, and n represents an integer of 3 to 12.Type: GrantFiled: November 19, 2008Date of Patent: August 2, 2011Assignee: Toyo Tire & Rubber Co., Ltd.Inventor: Norihiko Nakamura
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Publication number: 20110184109Abstract: It is to provide a high-elasticity rubber composition having a good workability while preventing the deterioration of rubber properties and capable of reducing rubber burning as far as possible by using a vulcanization accelerator having a retarding effect equal to or more than that of DCBS without using a retarder such as CTP possibly causing the deterioration of rubber properties after the vulcanization and problems such as blooming and the like and capable of realizing a higher elasticity and excellent low heat-buildup. The rubber composition according to the invention is characterized by comprising a rubber component, a sulfenamide-based vulcanization accelerator represented by a formula (I), a bismaleimide derivative represented by a formula (II) and sulfur.Type: ApplicationFiled: August 17, 2009Publication date: July 28, 2011Applicant: Bridgestone CorporationInventor: Yoshitaka Satou
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Patent number: 7976921Abstract: A release agent composition includes a poly(meth)acrylate (A) containing a structural unit (1) represented by the following formula (1); in which R1 represents hydrogen or a methyl group and R2 represents a long-chain alkyl group having 12 to 28 carbon atoms, a liquid polymer (B) and a crosslinking agent (C), wherein at least one of the poly(meth)acrylate (A) and the liquid polymer (B) has a reactive functional group, and the crosslinking agent (C) is a compound having a functional group capable of reacting with the reactive functional group.Type: GrantFiled: November 14, 2006Date of Patent: July 12, 2011Assignee: Lintec CorporationInventors: Shiori Beppu, Toshio Sugizaki
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Patent number: 7923518Abstract: The present application provides novel nitrile rubbers comprising repeating units of at least one ?,?-unsaturated nitrile, at least one conjugated diene and optionally one or more further copolymerizable monomers which nitrile rubbers are distinguished by a specific calcium content as well as a specific chlorine content and dispose of specific thio end groups. Additionally, an improved polymerization and work-up process is provided to produce the aforementioned nitrile rubbers.Type: GrantFiled: February 14, 2008Date of Patent: April 12, 2011Assignee: LANXESS Deutschland GmbHInventor: Werner Obrecht
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Publication number: 20100308495Abstract: A process for the manufacture of rubber process aids from blends of vulcanized rubber powders, virgin polymers and thermoplastic resins. The process is carried out in a single stage using an extruder. The extruder is fed in three sections with feed hoppers. Vulcanized rubber powder of selected origin is fed into the hopper in the first section with part of the thermoplastic resin and oxidizing agents. The balance of the thermoplastic resin is fed in the second section. Virgin polymer is fed into the hopper in the third section. The temperature of the extruder is controlled and dwell time of the material passing through each of the extruder's sections is adjusted to ensure adequate mixing of all the polymers whereby a reactive rubber process aid in free flowing particulates is produced that acts as an excellent process aid in rubber processing.Type: ApplicationFiled: November 16, 2009Publication date: December 9, 2010Inventors: Chandrasekaran R. PILLAI, Hari CHANDRASEKARAN, Krish C. CHANDRASEKARAN
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Publication number: 20100234535Abstract: Sulfenamide derivatives of 4-alkyl substituted 2-mercapto benzothiazole (4m-MBT) as accelerators used in vulcanizable rubber composition having improved ‘Reversion Resistance’ and ‘Modulus & Hardness Stabilization’ properties for sulphur vulcanized tire compounds predominantly based on Natural Rubber or its blends with Polybutadiene (BR) and styrene butadiene rubber (SBR) in which Natural Rubber is the major component thereby improving the overall tire performance, ride safety and tyre service life.Type: ApplicationFiled: July 23, 2007Publication date: September 16, 2010Inventors: Chandrashekhar Shankar Inamdar, Chinmoy Nandi, Narendra Digambar Gangal
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Publication number: 20100152392Abstract: In order to provide a crosslinker for vulcanization, a process for its preparation and correspondingly produced rubber products, what is proposed is the reaction of nitrogen-containing heterocyclic compounds with sulphur at a temperature below 100° C. and the use of the resulting crosslinker for vulcanization.Type: ApplicationFiled: October 31, 2007Publication date: June 17, 2010Inventors: Iourii Gribov, Pavel Kazimirskiy
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Patent number: 7674861Abstract: A thiocarbamoyldisulfanyl-functional cycloaliphatic compound, useful as a crosslinker for filled sulfur-vulcanizable elastomer compositions, is represented by the general formula: G[-CaH2a—S—S—C(?S)NR2]n wherein G is a saturated, monocyclic aliphatic group of valence n containing from 5 to 12 carbon atoms and optionally containing at least one halogen or a saturated monocyclic silicone [RSiO—]n[R2SiO—]p group of valence n; each R independently is a hydrogen or a monovalent hydrocarbon of up to 20 carbon atoms; each occurrence of subscripts a independently is an integer wherein a is 2 to 6; n is an integer of from 3 to 6; and, p is an integer of from 0 to 3.Type: GrantFiled: October 30, 2008Date of Patent: March 9, 2010Assignee: Momentive Performance Materials Inc.Inventors: William Michael York, Richard W. Cruse, Carla Recker, Thomas Kramer, Katharina Herzog
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Patent number: 7662891Abstract: To provide a compound which has a higher vulcanization efficiency and superior heat aging resistance compared to conventional compounding agents for rubber compositions and which is environmentally friendly. An amine salt compound of a carboxylic acid containing a thermal dissociation portion having the Formula (I): wherein R represents an organic group selected from a C1 to C20 alkyl group, a C3 to C10 cycloalkyl group, a C6 to C20 aryl group and a C7 to C30 alkaryl group, R1, R2 and R3 independently represent a hydrogen atom or a C1 to C20 organic group which may have a heteroatom and/or a substituent group and X represents a C2 to C20 organic group which may have a heteroatom and/or a substituent group and a compounding agent for rubber vulcanization and a rubber composition containing the same.Type: GrantFiled: December 13, 2007Date of Patent: February 16, 2010Assignee: The Yokohama Rubber Co., Ltd.Inventors: Takashi Matsuda, Wonmun Choi
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Publication number: 20100000639Abstract: A method for preparing a tire tread, the method comprising vulcanizing a vulcanizable composition comprising a rubber component including a functionalized polymer and a cure system, where the cure system includes sulfur and a disulfide compound represented by the formula I R1—S—S—R3—S—S—R2 where R3 represents a divalent organic group and R1 and R2 each independently include a monovalent organic group including a nitrogen atom.Type: ApplicationFiled: December 31, 2008Publication date: January 7, 2010Inventors: Amy Randall, Terrence E. Hogan, William L. Hergenrother
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Patent number: 7622531Abstract: The present invention relates to a powder paint composition comprising at least (a) a thermosetting polymer having functional groups capable of reacting with ?-hydroxyalkylamide units (b) a compound comprising ?-hydroxyalkylamide units and (c) a deceleration agent, capable of reversibly blocking the functional groups of polymer (a). The deceleration agent is present in an amount sufficient to block at least 9% of the total amount of functional groups of polymer (a). The present invention relates also to the use of a specific amine compound as a deceleration agent in a powder paint composition.Type: GrantFiled: June 10, 2004Date of Patent: November 24, 2009Assignee: DSM IP Assets B.V.Inventors: Antonia Urmanova, Eimbert Gerrit Belder, Jurjen Bolks, Coenraad Maarten Gehrels
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Patent number: 7566755Abstract: An object of the present invention can be to provide a crosslinking agent which exhibits excellent storage stability and heat resistance and which is used for a composition containing a rubber and/or a resin. Such an object is realized by the compound represented by the following formula (1). In the formula, Z represents an active hydrogen-containing group; X represents a non-cyclic aliphatic group, a cyclic aliphatic group, an aromatic group, or an alkyl aromatic group, which may be optionally substituted and which may contain at least one member selected from SO2, O, N, and S; J1 and J2 which are respectively included at a number of n independently represent a monovalent group, or J1 and J2 together represent a divalent group; R1 which is included at a number of n independently represents hydrogen atom or a non-cyclic aliphatic group; and n represents an integer of 1 to 4.Type: GrantFiled: February 20, 2004Date of Patent: July 28, 2009Assignee: The Yokohama Rubber Co., Ltd.Inventors: Wonmun Choi, Daisuke Kanenari
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Patent number: 7498387Abstract: A first-order modified, hydrogenated polymer comprising (1) a hydrogenated polymer obtained by hydrogenating at least one unhydrogenated polymer selected from the group consisting of a polymer comprising conjugated diene monomer units and a copolymer comprising conjugated diene monomer units and vinyl aromatic hydrocarbon monomer units, and (2) a functional group-containing first-order modifier group bonded to the hydrogenated polymer (1), wherein the content of the vinyl aromatic hydrocarbon monomer units, vinyl aromatic hydrocarbon block ratio, weight average molecular weight, and hydrogenation ratio (as measured with respect to the double bonds in the conjugated diene monomer units) of the first-order modified, hydrogenated polymer are, respectively, within specific ranges.Type: GrantFiled: April 10, 2003Date of Patent: March 3, 2009Assignee: Asahi Kasei Chemicals CorporationInventors: Takaaki Matsuda, Shigeki Takayama, Toshinori Shiraki, Shigeo Nakajima, Yasuhiro Kusanose
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Publication number: 20080312381Abstract: The invention relates to a process to cross-link rubbers comprising the step of combining a rubber with an initiator capable of generating free radicals, a maleimide-type co-agent, and a sulfur donor, wherein said co-agent and said sulfur donor are two different chemicals.Type: ApplicationFiled: March 20, 2006Publication date: December 18, 2008Applicant: STICHTING DUTCH POLYMER INSTITUTEInventors: Maria Montserrat Alvarez Grima, Auke Gerardus Talma, Rabindra Nath Datta, Jacobus Wilhelmus Noordermeer
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Patent number: 7385008Abstract: The present invention includes elastomeric compositions of BIMS elastomers suitable for abrasion resistant, high traction and/or air barrier articles. The compositions and articles made from those compositions of the invention can be described in any number of embodiments. In one embodiment, the composition suitable for an abrasion resistant article includes from 5 to 100 phr of a terpolymer of C4 to C7 isoolefin derived units, p-alkylstyrene derived units and p-bromomethylstyrene derived units; at least one filler such as carbon black, silica, precipitated silica, clay, or combinations thereof, and from 0.1 to 3 phr of at least one thiourea. The composition can also include from 5 to 80 phr of at least one elastomer selected from natural rubbers, polyisoprene rubber, styrene butadiene rubber (SBR), polybutadiene rubber, isoprene butadiene rubber (IBR), styrene-isoprene-butadiene rubber (SIBR), butyl rubber, halogenated butyl rubber, butadiene-acrylonitrile-styrene rubber (SNBR), and mixtures thereof.Type: GrantFiled: October 12, 2007Date of Patent: June 10, 2008Assignee: ExxonMobile Chemical Patents Inc.Inventors: Walter Harvey Waddell, Robert Ryan Poulter
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Patent number: 7361711Abstract: A golf ball including a core and at least one layer disposed about the core, wherein the core or the layer is formed from a composition including a base polymer, a crosslink initiator, and an additive, wherein the additive is both an inorganic-sulfur compound and a sulfuric acid amide.Type: GrantFiled: July 1, 2005Date of Patent: April 22, 2008Assignee: Acushnet CompanyInventors: David A. Bulpett, Brian Comeau, Derek A. Ladd
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Patent number: 7358313Abstract: A rubber composition based on at least (i) an elastomer, (ii) a reinforcing filler and (iii) a thiouronium salt or an analogue of a thiouronium salt of the formula (I) below: A-S—Y—S-A ??(I) in which, A represents a group associated respectively with a molecule HX or an ion X—, X denoting a halogen atom and Z denoting Incorporating the thiouronium salt into the vulcanizable rubber composition makes it possible to substantially reduce the reversion rate of the vulcanized rubber composition.Type: GrantFiled: December 13, 2004Date of Patent: April 15, 2008Assignee: Michelin Recherche et Technique S.A.Inventors: Christiane Blanchard, Salvatore Pagano
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Patent number: 7335707Abstract: A barrier layer composition for a pneumatic tire that contains a mixture of an 4-phenyl isocyanate and sulfur as a crosslinking material, with higher than normal levels of filler or reinforcing material loading. The barrier layer formulation exhibited improved green strength properties, and also improved aged flex life, aged tear, and reversion resistance.Type: GrantFiled: November 2, 2005Date of Patent: February 26, 2008Assignee: The Goodyear Tire & Rubber CompanyInventor: Leighton Randolph Spadone
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Anti-aging agents for rubber vulcanizates based on organic compounds containing conjugated azadienes
Patent number: 7323520Abstract: The present invention relates to anti-aging agents based on organic compounds containing conjugated azadiene groups, which are capable of providing rubber vulcanizates with long-term protection against thermal aging, fatigue and aging as a result of the effects of oxygen. The anti-aging agents according to the present invention are further characterized in that they are hardly ever extracted from the vulcanizates by water, oils and/or gasolines or hydraulic fluids.Type: GrantFiled: October 27, 2003Date of Patent: January 29, 2008Assignee: LANXESS Deutschland GmbHInventor: Markus Oberthür -
Patent number: 7300981Abstract: The present invention includes elastomeric compositions of BIMS elastomers suitable for abrasion resistant, high traction and/or barrier articles. The compositions and articles made from those compositions of the inventions can be described in any number of embodiments. In one embodiment, the composition suitable for an abrasion resistant article includes from 5 to 100 phr of a terpolymer of C4 to C7 isoolefin derived units, p-alkylstyrene derived units and p-bromomehtylstyrene derived units; at least one filler such as carbon black, silica, precipitated silica, clay, or combinations thereof; and from 0.1 to 3 phr of at least one thiourea.Type: GrantFiled: February 21, 2003Date of Patent: November 27, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Walter Harvey Waddell, Robert Ryan Poulter
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Patent number: 7241843Abstract: A rubber composition for a tread optimizing a vulcanization speed in a vulcanization step and, further, improving heat aging resistance is provided. A rubber composition for a tread comprising 20 to 90 parts by weight of silica, 0.5 to 2 parts by weight of (A) a guanidine vulcanization accelerator, 0.1 to 0.5 part by weight of (B) a thiuram vulcanization accelerator, and 0.5 to 2 parts by weight of (C) a sulfenamide vulcanization accelerator represented by the general formula (1): (wherein R is a linear alkyl group or a branched alkyl group having 1 to 18 carbons), based on 100 parts by weight of a rubber component.Type: GrantFiled: June 5, 2006Date of Patent: July 10, 2007Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Tatsuya Miyazaki
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Patent number: 7202307Abstract: A sulfur curing system EPDM composition in which one or more types of vulcanization accelerators selected from thiazole type and sulfenamide type accelerators and one or more types of vulcanization accelerators selected from dithiocarbamate type and thiuram type accelerators are combined together so as to be compounded into the EPDM composition as a vulcanization accelerator, and an automotive brake system rubber component made of the EPDM composition.Type: GrantFiled: February 21, 2006Date of Patent: April 10, 2007Assignee: Toyoda Gosei Co., Ltd.Inventors: Hidekazu Kurimoto, Kiyomitsu Terashima, Hidenori Hayashi, Yasushi Nakahara
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Patent number: 7132481Abstract: This invention relates to a composite of a melamine derivative, particularly a liquid melamine derivative, and carbon black. A representative melamine derivative is, for example, comprised of an alkoxymethylmelamine such as hexamethoxymethylmelamine. The invention further relates to a rubber composition containing such composite of a melamine derivative and carbon black and to a rubber composition containing such composite as a methylene donor in combination with a methylene acceptor and the reaction product thereof in situ within said rubber composition. Such rubber composition may be a component of an article of manufacture, which may contain or be exclusive of, wire reinforcement, such as for example a component of a tire, vehicular track or industrial belt or hose.Type: GrantFiled: April 8, 2003Date of Patent: November 7, 2006Assignee: The Goodyear Tire & Rubber CompanyInventors: Karen Elaine Burkholder, Kristine Nicole Ludwig, James Robert Tuttle