Pneumatic radial tires
    1.
    发明授权
    Pneumatic radial tires 失效
    气动子午线轮胎

    公开(公告)号:US4481995A

    公开(公告)日:1984-11-13

    申请号:US417943

    申请日:1982-09-14

    CPC分类号: B60C1/0025

    摘要: A pneumatic radial tire having sidewalls, the rubber composition of said sidewalls comprising, based on 100 parts by weight of rubber, 20 to 90 parts by weight of butadienepiperylene copolymer and 80 to 10 parts by weight of at least one rubbery diene polymer selected from the group consisting of natural rubber, synthetic polyisoprene rubber, polybutadiene rubber, butadiene-styrene copolymer rubber, ethylenepropylene-diene ternary copolymer rubber and acrylonitrile-butadiene copolymer rubber.

    摘要翻译: 一种具有侧壁的充气子午线轮胎,所述侧壁的橡胶组合物基于100重量份的橡胶,20至90重量份的丁二烯基苯乙烯共聚物和80至10重量份的至少一种橡胶二烯聚合物,所述橡胶二烯聚合物选自 由天然橡胶,合成聚异戊二烯橡胶,聚丁二烯橡胶,丁二烯 - 苯乙烯共聚物橡胶,乙烯 - 丙烯 - 二烯三元共聚物橡胶和丙烯腈 - 丁二烯共聚物橡胶组成的组。

    Branched styrene-butadiene copolymers and pneumatic tires using the same
    6.
    发明授权
    Branched styrene-butadiene copolymers and pneumatic tires using the same 失效
    支链苯乙烯 - 丁二烯共聚物和使用其的充气轮胎

    公开(公告)号:US4526934A

    公开(公告)日:1985-07-02

    申请号:US473394

    申请日:1983-03-08

    IPC分类号: B60C1/00 C08C19/44 C08F8/42

    CPC分类号: C08C19/44 B60C1/0016

    摘要: A branched styrene-butadiene copolymer and a pneumatic tire using the same as a tread base rubber are disclosed. This copolymer is produced by coupling an active styrene-butadiene copolymer anion, which is obtained by polymerizing styrene and butadiene in a hydrocarbon solvent in the presence of ether or a tertiary amine and an initiator of an organolithium compound, with a tin halide compound. In the copolymer, the ratio of branched copolymer connected with tin-butadienyl bond is at least 20% by weight, and the content of bound styrene is not less than 3% by weight but less than 25% by weight, and the content of vinyl bond in butadiene portion is not less than 30% but less than 50%.

    摘要翻译: 公开了一种支化苯乙烯 - 丁二烯共聚物和使用该共聚物作为胎面基橡胶的充气轮胎。 该共聚物是通过在醚或叔胺和有机锂化合物的引发剂存在下在烃溶剂中将苯乙烯和丁二烯聚合得到的活性苯乙烯 - 丁二烯共聚物阴离子与卤化锡化合物而制备的。 在共聚物中,与锡 - 丁二烯基键相连的支链共聚物的比例为至少20重量%,结合苯乙烯的含量不小于3重量%但小于25重量%,乙烯基含量 丁二烯部分中的键不小于30%但小于50%。

    Butadiene copolymer rubber composition
    10.
    发明授权
    Butadiene copolymer rubber composition 失效
    丁二烯共聚物橡胶组合物

    公开(公告)号:US5164450A

    公开(公告)日:1992-11-17

    申请号:US582810

    申请日:1990-09-14

    IPC分类号: C08C19/44 C08F236/10 C08L9/06

    CPC分类号: C08F236/10 C08C19/44 C08L9/06

    摘要: Disclosure is herein made of a rubber composition containing at least 30% by weight of a butadiene copolymer which is characterized in that: (i) the content of vinyl bonds in a polybutadiene portion is from 40 to 70%; (ii) the content of bound vinyl aromatic compound is from 25 to 50% by weight: (iii) the ratio Mw/Mn between the weight average molecular weight (Mw) and the number average molecular weight (Mn) when calculated as polystyrene according to the gel permeation chromatograph (GPC) method is from 1.8 to 5, and the distribution of the molecular weight is unimodal; (iv) the rate of the copolymer having the weight average molecular weight of not more than 100,000 when calculated as polystyrene is from 10 to 30%; (v) the rate of the copolymer having the weight average molecular weight of not less than 2,000,000 when calculated as polystyrene is from 10 to 30%; and (vi) the Mooney viscosity (ML.sub.1+4 100.degree. C.) is from 20 to 100.

    摘要翻译: 本文公开了含有至少30重量%的丁二烯共聚物的橡胶组合物,其特征在于:(i)聚丁二烯部分中的乙烯基键含量为40至70%; (ii)结合的乙烯基芳族化合物的含量为25〜50重量%:(iii)以聚苯乙烯换算时的重均分子量(Mw)与数均分子量(Mn)之比Mw / Mn 凝胶渗透色谱(GPC)法为1.8〜5,分子量分布为单峰; (iv)当以聚苯乙烯计算时,重均分子量不大于100,000的共聚物的比例为10-30%; (v)当以聚苯乙烯计算时,重均分子量不小于200万的共聚物的比例为10至30%; 和(vi)门尼粘度(ML1 + 4 100℃)为20-100。