Rubber composition, method of manufacturing a rubber composition and pneumatic tire with such a rubber composition
申请人:The Goodyear Tire & Rubber Company
公开号:EP2325027A1
公开(公告)日:2011-05-25
The present invention is directed to a rubber composition comprising, based on 100 parts by weight of elastomer (phr):
(A) from 60 to 90 phr of a polymer comprising:
(1) a terminating group provided from a terminating compound
XnSi(OR)mR'4-m-n
wherein X is a chlorine atom, a bromine atom or an iodine atom, R is an alkyl group with from 1 carbon to 7 carbons, R' is a alkyl group with from 1 carbon to 20 carbons, an aryl group, a vinyl group or a halogenated alkyl group, m is an integer from 1 to 4, n is an integer from 0 to 2, and wherein the sum of n and m is from 1 to 4;
(2) repeat units comprising:
(a) a repeat unit provided from a conjugated diolefin monomer, and
(b) a repeat unit provided from an amine monomer;
(B) from 40 to 10 phr of polybutadiene having a microstructure comprising from 96 to 99 percent cis 1,4-isomeric units, from 0.1 to 1 percent trans 1,4-isomeric units and from 1 to 3 percent vinyl 1,2-isomeric units, and
(C) from 50 to 150 phr of silica. It is also directed to a pneumatic tire with such a rubber composition.
本发明涉及一种橡胶组合物,以 100 重量份的弹性体(phr)为基准,该组合物包括
(A) 60 至 90 phr 的聚合物,包括
(1) 由终止化合物提供的终止基团
XnSi(OR)mR'4-m-n
其中 X 是氯原子、溴原子或碘原子,R 是含 1 至 7 个碳原子的烷基,R'是含 1 至 20 个碳原子的烷基、芳基、乙烯基或卤代烷基,m 是 1 至 4 的整数,n 是 0 至 2 的整数,n 和 m 之和是 1 至 4;
(2) 重复单元包括
(a) 由共轭二烯烃单体提供的重复单元,和
(b) 由胺单体提供的重复单元;
(B) 40 至 10 phr 的聚丁二烯,其微结构包括 96%至 99%的顺式 1,4-异构单元、0.1%至 1%的反式 1,4-异构单元和 1%至 3%的乙烯基 1,2-异构单元,以及
(C) 50 至 150 phr 的二氧化硅。本发明还涉及使用这种橡胶组合物的充气轮胎。