发明名称 |
Vulcanizable rubber composition, in particular for low rolling resistance treads for vehicle tyres |
摘要 |
A vulcanizable rubber composition is described comprising a cross-linkable unsaturated chain polymer base including natural rubber, at least a copolymer obtainable by polymerizing a conjugated diolefin with a vinyl aromatic hydrocarbon, and a main carbon black-based reinforcing filler, wherein: a) the copolymer is obtainable by polimerizing in 1,2 form with the vinyl aromatic hydrocarbon at least 50% by weight of the conjugated diolefin, so as to obtain in the copolymer a quantity of from 30% to 70% by weight to the total weight of the same of an olefin fraction having a 1,2 structure, and b) the carbon black has a DBP absorption value measured according to ISO 4656-1 equal to at least 110 ml/100 g, a reduction in the DBP absorption value measured after compression according to ISO 6894 equal to at least 25 ml/100 g and a surface area measured by means of CTAB absorption according to ISO 6810 not greater than 120 m<2>/g. <IMAGE> |
申请公布号 |
EP0802223(A3) |
申请公布日期 |
1998.08.12 |
申请号 |
EP19970200983 |
申请日期 |
1997.04.03 |
申请人 |
PIRELLI COORDINAMENTO PNEUMATICI S.P.A. |
发明人 |
GARRO, LUCIANO;AMADDEO, ANGELA |
分类号 |
B60C1/00;C08K3/04;C08K3/36;C08K5/54;C08L7/00;C08L9/06;C08L19/00;C08L25/04 |
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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