Tire with tread of elastomer composition
    1.
    发明授权
    Tire with tread of elastomer composition 失效
    轮胎与弹性体组成的胎面

    公开(公告)号:US5504140A

    公开(公告)日:1996-04-02

    申请号:US315476

    申请日:1994-09-30

    摘要: Pneumatic rubber tire with a tread composed of a rubber blend of a base of at least two synthetic elastomers composed of (i) specialized isoprene/butadiene copolymer elastomer having a low Tg in a range of about -70.degree. to about -100.degree. C. and (ii) a diene based elastomer having a Tg in a range of about -5.degree. to about -30.degree. C. together with a minor amount of natural cis 1,4-polyisoprene rubber. Selection of the base of the said two synthetic elastomers having spaced apart, or spatially defined, Tg's of at least 40.degree. C. is an important feature of the tread rubber blend. Representative examples of contemplated elastomers with Tg's in a range of about -5.degree. to about -30.degree. C. are 3,4-polyisoprene elastomer, styrene/isoprene copolymer elastomer and high vinyl polybutadiene elastomers.In one aspect, the tread rubber blend is reinforced with reinforcing filler composed of carbon black or a combination of carbon black and silica accompanied by a coupling agent.

    摘要翻译: 具有胎面的气动橡胶轮胎,其由至少两种合成弹性体的基底的橡胶共混物组成,所述合成弹性体由(i)具有约-70℃至约-100℃范围内的低Tg的特殊异戊二烯/丁二烯共聚物弹性体组成。 和(ii)Tg在约-5℃至约-30℃范围内的二烯基弹性体以及少量天然顺式1,4-聚异戊二烯橡胶。 具有至少40℃的间隔或空间限定的Tg的所述两种合成弹性体的基底的选择是胎面橡胶共混物的重要特征。 具有Tg在约-5℃至约-30℃范围内的预期弹性体的代表性实例是3,4-聚异戊二烯弹性体,苯乙烯/异戊二烯共聚物弹性体和高乙烯基聚丁二烯弹性体。 在一个方面,胎面橡胶共混物用伴随着偶联剂的炭黑或炭黑和二氧化硅的组合的增强填料增强。