发明名称 |
BLOCKCOPOLYMERE FÜR KAUTSCHUKZUSAMMENSETZUNGEN VERWENDBAR FÜR REIFEN |
摘要 |
The present invention relates to block copolymers intended to constitute an elastomeric matrix of a cross-linkable rubber composition with reduced hysteresis, to such a rubber composition which is usable in the cross-linked state in a tire tread, to such a tire tread and to a tire comprising said tire tread which exhibits reduced rolling resistance. A copolymer with n blocks (n=2 or 3) according to the invention, each of said blocks comprising a diene elastomer having a molar content of units originating from conjugated dienes of greater than 15%, and one or each of said blocks which forms the chain end of said copolymer consisting of a polyisoprene, when n=2 or n=3 respectively, is such that the number-average molecular weight Mn1 of said or each polyisoprene end block is between about 2,500 and 20,000 g/mol, and such that the number-average molecular weight Mn2 of the block of said copolymer which is other than said or each polyisoprene end block is between about 80,000 g/mol and 350,000 g/mol. |
申请公布号 |
DE60112738(D1) |
申请公布日期 |
2005.09.22 |
申请号 |
DE2001612738 |
申请日期 |
2001.04.23 |
申请人 |
SOCIETE DE TECHNOLOGIE MICHELIN, CLERMONT-FERRAND;MICHELIN RECHERCHE ET TECHNIQUE S.A., GRANGES-PACCOT |
发明人 |
ROBERT, PIERRE;FAVROT, JEAN-MICHEL;CABIOCH, JEAN-LUC;VOULLEMIER, BERNARD |
分类号 |
B60C1/00;C08F297/02;C08K3/04;C08K3/36;C08L53/00;(IPC1-7):C08F297/02 |
主分类号 |
B60C1/00 |
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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