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公开(公告)号:JP4852736B2
公开(公告)日:2012-01-11
申请号:JP2002505899
申请日:2001-06-29
Applicant: Jsr株式会社 , 株式会社ブリヂストン
CPC classification number: C08L19/006 , C08K3/013 , C08L9/06 , C08L2205/02 , Y02T10/862
Abstract: It is an object of the present invention to provide a rubber composition which can give a vulcanized rubber with low rolling resistance and excellent wet skid resistance and wear resistance, which is particularly useful for automobile tire treads and the like. The rubber composition of the invention comprises (1) a crosslinked rubber particle containing, as repeating units, 40 to 79.99 % by weight of a monomer unit formed by a conjugated diene such as 1,3-butadiene, 20 to 50 % by weight of a monomer unit formed by an aromatic vinyl monomer such as styrene and 0.01 to 10 % by weight of a monomer unit formed by a monomer having at least two polymerizable unsaturated groups such as divinylbenzene, and (2) a conjugated diene/aromatic vinyl copolymeric rubber whose vinyl content of the conjugated diene monomer unit is 10 to 30 % and whose 1,4-trans bond content is more than 55 %, such as styrene-butadiene copolymeric rubber. The crosslinked rubber particle may also contain a repeating unit composed of a monomer having one polymerizable unsaturated group and carboxylic group, hydroxyl group and/or epoxy group.
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63.
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65.
公开(公告)号:JP2008525545A
公开(公告)日:2008-07-17
申请号:JP2007547362
申请日:2005-12-22
CPC classification number: C08K9/02 , C08K3/36 , C08K13/04 , C08L9/00 , C08L19/006 , C08L9/06 , C08L2666/08
Abstract: 本発明は、(1)溶液状で調製され、多官能性アルコキシシランカップリング剤で変性された官能化ブタジエン系エラストマーを含む少なくとも1種のブタジエン系エラストマーE;(2)前記ブタジエン系エラストマー中の少なくとも1種の補強用充填剤としての、アルミニウムを含有し、高分散性特性を有する特定の沈降シリカ:を含み、タイヤ用物品の製造に特に有用なエラストマー組成物に関する。
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