发明名称 |
Rubber compound for tire tread and method for the preparation thereof |
摘要 |
A crosslinkable or crosslinked rubber composition is described which includes a diene elastomer having a mass content of cyclic vinyl units of greater than 15%, and which may be used to form a tire tread. Also described is a tire tread and a tire incorporating the tread. The composition contains a linear or branched diene elastomer derived from at least one conjugated diene, and a reinforcing filler. The elastomer has cyclic vinyl units according to a mass content of greater than or equal to 15% and a number-average molecular weight of from 30,000 to 350,000 g/mol. The elastomer may be obtained by anionic polymerization of one or more monomers including a conjugated diene in an inert hydrocarbon solvent with a catalytic system including an organolithium initiator and a polar agent with several heteroatoms. The reaction may be performed batchwise where the polar agent:initiator molar ratio is greater than 8, or continuously where the polar agent:initiator molar ratio is greater than or equal to 3.
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申请公布号 |
US2008275160(A1) |
申请公布日期 |
2008.11.06 |
申请号 |
US20080216531 |
申请日期 |
2008.07.07 |
申请人 |
MICHELIN RECHERCHE ET TECHNIQUE S.A. |
发明人 |
CABIOCH JEAN-LUC;COISSIEUX LAURENT;FAVROT JEAN-MICHEL;VARAGNIAT FRANCK |
分类号 |
C08J5/14;B60C1/00;C08C19/44;C08F36/04;C08F297/04;C08K3/36 |
主分类号 |
C08J5/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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