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公开(公告)号：US20180051163A1
公开(公告)日：2018-02-22
申请号：US15557701
申请日：2016-03-18
CPC分类号： C08L15/00 , B60C1/0016 , C08C19/22 , C08K3/36 , C08K5/378 , C08L9/06 , C08L13/00 , C08L2205/025 , C08L2205/03 , C08L25/10 , C08L93/00 , C08K5/5419 , C08K5/548 , C08K3/04
摘要： A rubber composition for tire treads contains an inorganic filler containing silica and a diene rubber containing a carboxy-modified polymer. The content of the inorganic filler is from 70 to 170 parts by mass per 100 parts by mass of the diene rubber. The content of the silica is from 70 to 160 parts by mass per 100 parts by mass of the diene rubber. The carboxy-modified polymer is obtained by modifying a styrene-butadiene rubber (A) with a nitrone compound (B) having a carboxy group, and the content of the carboxy-modified polymer in the diene rubber is from 10 to 100 mass %. The content of styrene units in the styrene-butadiene rubber (A) is not less than 36 mass %. The degree of modification of the carboxy-modified polymer is from 0.02 to 4.0 mol %.
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公开(公告)号：US20180044510A1
公开(公告)日：2018-02-15
申请号：US15557618
申请日：2016-03-18
CPC分类号： C08L9/06 , B60C1/00 , B60C1/0016 , C08K3/04 , C08K3/36 , C08L9/00 , C08L101/00 , C08L2205/14 , C08L2205/22 , C08L75/04 , C08K5/548 , C08K3/22 , C08K3/06 , C08K5/47 , C08K5/18
摘要： Provided are a tire rubber composition capable of producing a pneumatic tire having excellent rigidity and wear resistance and a pneumatic tire using the same. The tire rubber composition includes 100 parts by mass of a diene rubber (A) and from 1 to 50 parts by mass of elastic microparticles (B), wherein the elastic microparticles (B) have a form of microparticles obtained by crosslinking a crosslinkable oligomer or polymer (b1) in water or an organic solvent, or in the diene rubber (A), and have an average particle size of from 0.001 to 100 μm, the JIS A hardness of a cured product obtained by crosslinking the crosslinkable oligomer or polymer (b1) without use of water, the organic solvent or the diene rubber (A) is greater than 45, and the elongation of the cured product is 200% or greater.
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公开(公告)号：US20180030250A1
公开(公告)日：2018-02-01
申请号：US15549049
申请日：2016-02-15
发明人： Yuka YOKOYAMA
CPC分类号： C08L9/06 , B60C1/00 , B60C1/0016 , C08K3/36 , C08K5/548 , C08L15/00 , C08L2205/02 , C08L9/00 , C08L91/00 , C08L91/06 , C08K3/04 , C08K5/09 , C08K3/22 , C08K3/06 , C08K5/18 , C08K5/47 , C08K5/31 , C08L45/02
摘要： Provided are a rubber composition for tires that shows a balanced improvement in fuel economy, abrasion resistance, wet performance, and handling stability, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires containing a modified diene rubber containing a functional group reactive with silica, a fine particle silica having a nitrogen adsorption specific surface area of 180 m2/g or more, and a silane coupling agent represented by a specific formula.
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公开(公告)号：US09878580B2
公开(公告)日：2018-01-30
申请号：US14655887
申请日：2013-12-19
发明人： Mizuki Takeuchi , Yuki Shimizu
IPC分类号： C08K3/04 , C08K9/04 , C08K3/06 , C08K3/36 , C08K5/548 , B29D30/60 , B60C1/00 , C08L9/00 , C08L7/00
CPC分类号： B60C1/00 , B29D30/60 , B60C1/0016 , C08K3/04 , C08K3/06 , C08K3/36 , C08K5/548 , C08K9/04 , C08L7/00 , C08L9/00
摘要： The present technology provides a rubber composition containing: from 20 to 40 parts by weight of carbon black, from 15 to 30 parts by weight of silica, from 2.0 to 3.5 parts by weight of sulfur, and a sulfur-containing silane coupling agent, per 100 parts by weight of diene rubber that contains from 80 to 100 wt. % of natural rubber, and from 20 to 0 wt. % of isoprene rubber; the total amount of sulfur in the sulfur and the sulfur-containing silane coupling agent being from 2.3 to 4.0 parts by weight.
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公开(公告)号：US09873778B2
公开(公告)日：2018-01-23
申请号：US14888150
申请日：2014-05-02
发明人： Koichi Saito
CPC分类号： C08L9/06 , B60C1/00 , B60C1/0016 , C08K3/04 , C08K3/06 , C08K3/22 , C08K3/36 , C08K5/09 , C08K5/18 , C08K5/31 , C08K5/47 , C08K5/548 , C08K2201/006 , C08L9/00 , C08L15/00 , C08L2205/02 , Y02T10/862
摘要： Provide are a rubber composition for tire which is excellent in a wet grip performance and abrasion resistance and which has small rolling resistance and a low fuel consumption, and a tire prepared by using the above rubber composition. The rubber composition is prepared by compounding 100 parts by mass of a rubber component comprising a styrene-butadiene rubber or a styrene-butadiene rubber and a butadiene rubber with 2 to 200 parts by mass of carbon black as a reinforcing filler, wherein the carbon black has at least a hydrogen release rate of 0.2% by mass or more and/or a ratio N2SA/CTAB of 1.2 to 1.5 in which N2SA is a nitrogen adsorption specific surface area and CTAB is a cetyltributylammonium bromide adsorption specific surface area, and has a N2SA of 160 to 300 m2/g.
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公开(公告)号：US09868850B2
公开(公告)日：2018-01-16
申请号：US14623424
申请日：2015-02-16
申请人： Yuan-Yong Yan , Zengquan Qin , Xiao-Dong Pan
发明人： Yuan-Yong Yan , Zengquan Qin , Xiao-Dong Pan
IPC分类号： C08K5/544 , C08K3/36 , C08K5/5419 , C08C19/44 , C08F36/04 , C08L15/00 , C08K5/548 , C08L7/00 , C08K5/549
CPC分类号： C08K5/544 , C08C19/44 , C08F36/04 , C08K3/36 , C08K5/5419 , C08K5/548 , C08K5/549 , C08L7/00 , C08L15/00 , C08F4/48
摘要： Vulcanizates with desirable properties can be obtained from compositions incorporating polymers that include hydroxyl group-containing aryl functionalities, silica or other particulate filler(s) that contain or include oxides of silicon and a group or compound that can act to covalently bond the filler particles and the polymer. The group can be provided as a substituent of the filler particle, or a discreet compound can be provided in the composition.
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公开(公告)号：US20170373215A1
公开(公告)日：2017-12-28
申请号：US15591477
申请日：2017-05-10
发明人： Yoshihiro TSUTSUMI , Tadashi TOMITA
CPC分类号： H01L31/16 , C08G77/16 , C08G77/18 , C08G77/80 , C08L83/04 , C08L2205/025 , H01L31/0203 , C08L83/00 , C08K5/56 , C08K5/0091 , C08K5/548
摘要： Provided are a heat-curable silicone resin composition for primarily encapsulating photocoupler that is superior in heat resistance and curability, has no stain at the time of being molded and after being cured, and exhibits a small change in a light transmissibility; a photocoupler encapsulated by such composition; and an optical semiconductor device having such photocoupler. The heat-curable silicone resin composition contains (A) a condensation reaction-type resinous organopolysiloxane solid at 25° C.; (B) an organopolysiloxane having a linear diorganopolysiloxane residue, and at least one cyclohexyl group or phenyl group in one molecule; (C) an inorganic filler; (D) an organic metal-based condensation catalyst; (E) a zirconium-carrying ion trapping agent; and (F) a mold release agent.
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公开(公告)号：US20170362390A1
公开(公告)日：2017-12-21
申请号：US15534303
申请日：2015-12-18
IPC分类号： C08G77/38 , A61K8/899 , C08G77/388 , C08G77/12 , C08G77/392 , A61Q19/00 , A61K8/891 , C08L83/04 , A61K8/898 , C08G77/20
CPC分类号： C08G77/38 , A61K8/891 , A61K8/892 , A61K8/893 , A61K8/898 , A61K8/899 , A61K2800/10 , A61K2800/412 , A61K2800/612 , A61K2800/654 , A61Q5/02 , A61Q11/00 , A61Q15/00 , A61Q19/00 , C08G77/12 , C08G77/20 , C08G77/388 , C08G77/392 , C08J3/128 , C08J2383/04 , C08L83/04 , C08L83/00 , C08K5/548 , C08K5/56 , C08K5/01 , C08K5/5419
摘要： Particles are prepared in an emulsion using a method that includes providing a first reactant having at least two unsaturated carbon-carbon moieties and a second reactant having at least two Si—H moieties, so long as at least one of the unsaturated carbon-carbon moieties of the first reactant or the Si—H moieties of the second reactant is pendant. The method also includes providing a third reactant having a silicon atom and a condensable reactive group bonded to the silicon atom and also having an unsaturated carbon-carbon moiety and/or a Si—H moiety, providing a hydrosilylation catalyst, and providing a polar liquid. The method further includes combining the first, second, and third reactants to form particles that have a cross-linked network wherein the condensable reactive group is disposed on the particles, and adding a silane having an organic moiety and a condensation leaving group to form the particles.
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公开(公告)号：US09840569B2
公开(公告)日：2017-12-12
申请号：US15118701
申请日：2015-03-06
发明人： Edward J. Blok , Ian C. Stewart , David T. Harris
CPC分类号： C08F8/42 , B60C1/0016 , C08F2810/30 , C08F2810/40 , C08K3/36 , C08K5/548 , C08L9/00 , C08L9/06 , C08L45/00 , C08L2205/025 , C08F132/08
摘要： This invention relates to a functionalized resin composition having the formula P—S—X where S is a spacer selected from at least one of C2-C40 straight chain and branched alkyl, C6-C40 aromatics, butadiene, isoprene, and combinations thereof, P is a polymer backbone selected from at least one of dicyclopentadiene (DCPD)-based polymers, cyclopentadiene (CPD)-based polymers, DCPD-styrene copolymers, C5 homopolymers and copolymer resins, C5-styrene copolymer resins, terpene homopolymer or copolymer resins, pinene homopolymer or copolymer resins, C9 homopolymers and copolymer resins, C5/C9 copolymer resins, alpha-methylstyrene homopolymer or copolymer resins, and combinations thereof, and X is a silane.
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公开(公告)号：US20170321040A1
公开(公告)日：2017-11-09
申请号：US15534530
申请日：2015-12-02
发明人： Makiko YONEMOTO
CPC分类号： C08K13/02 , C08J3/20 , C08J3/203 , C08J2309/06 , C08J2309/08 , C08K3/36 , C08K5/0091 , C08K5/5398 , C08K5/548 , C08L9/06
摘要： The present invention provides a rubber composition obtained by compounding a rubber component (A) containing a copolymer of a conjugated diene compound and an aromatic vinyl compound, a filler containing an inorganic filler (B), a silane coupling agent (C), and at least one accelerator (D) selected from the group consisting of zinc dithiophosphates represented by the general formula (1), being good in the processability in an unvulcanized state, and having a low-heat-generation property and a low abrasion property: wherein, R20's are each independently hydrogen or a monovalent hydrocarbon group, and at least one of R20's is a substituted or unsubstituted linear alkyl group having from 7 to 18 carbon atoms, a substituted or unsubstituted branched-chain alkyl group having from 7 to 18 carbon atoms, or a substituted or unsubstituted cycloalkyl group having from 7 to 18 carbon atoms.
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