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    • 25. 发明授权
    • Process for producing a diolefin polymer or copolymer and a rubber
composition containing such a diolefin polymer or copolymer
    • 制备二烯烃聚合物或共聚物的方法和含有这种二烯烃聚合物或共聚物的橡胶组合物
    • US5527860A
    • 1996-06-18
    • US184217
    • 1994-01-21
    • Yoshitaka YamakawaKyouyuu YasudaIwakazu HattoriHideaki YokoyamaTatsuro Hamada
    • Yoshitaka YamakawaKyouyuu YasudaIwakazu HattoriHideaki YokoyamaTatsuro Hamada
    • C08F4/08C08F4/48C08F36/04C08F8/42
    • C08F36/04
    • A process for producing a diolefin polymer or copolymer, comprising the steps of polymerizing 55-100 wt % of a conjugated diolefin with 0-45 wt % of an aromatic vinyl compound as monomers in a hydrocarbon as a solvent, by using initiators: a reaction product [a1] between at least one secondary amine compound (A) and an organic lithium compound and/or a lithium amide compound [a2] of the at least one secondary amine compound (A) as well as a reaction product [b1] between at least one alcohol (B) and an organic lithium compound and/or a lithium alkoxide compound of the at least one alcohol (B). A rubber composition containing not less than 30 wt % of such a diolefin polymer or copolymer with respect to an entire rubber component is also disclosed. This rubber composition exhibits excellent abrasion resistance, high tensile strength, steering stability and low rolling resistance, and is suitable for tires, particularly, as treads of low fuel consumption tires.
    • 一种制备二烯烃聚合物或共聚物的方法,包括以下步骤:通过使用引发剂将55-100重量%的共轭二烯烃与0-45重量%的芳族乙烯基化合物作为单体在烃中作为溶剂聚合:反应 至少一种仲胺化合物(A)的至少一种仲胺化合物(A)和有机锂化合物和/或氨化锂化合物[a2]之间的产物[a1]以及至少一种仲胺化合物(A)的反应产物[b1] 至少一种醇(B)和至少一种醇(B)的有机锂化合物和/或醇锂化合物。 还公开了相对于整个橡胶组分含有不少于30重量%的这种二烯烃聚合物或共聚物的橡胶组合物。 该橡胶组合物表现出优异的耐磨性,高拉伸强度,操纵稳定性和低滚动阻力,并且适用于轮胎,特别是作为低燃料轮胎的胎面。