Functional rubber-based structural adhesive compositions
    52.
    发明授权
    Functional rubber-based structural adhesive compositions 失效
    功能性橡胶基结构粘合剂组合物

    公开(公告)号:US5256738A

    公开(公告)日:1993-10-26

    申请号:US807737

    申请日:1991-12-16

    摘要: A one-package stable rubber based curable composition contains:(a) a functional rubber polymer selected from the group consisting of functional homopolymers of polybutadiene, isoprene or neoprene; functional copolymers of polybutadiene, isoprene and/or neoprene; and functional copolymers of polybutadiene, neoprene or isoprene with an aliphatic or alicyclic unsaturated hydrocarbon; and(b) a vulcanization system comprising sulfur, wherein the composition contains at least 15 parts of functional rubber polymer per 100 parts of composition and at least 15 parts of sulfur per 100 parts of the total amount of all rubber polymers in the composition, with the proviso that the cured composition has an elongation not exceeding 15 percent and the functional groups present on the functional rubber polymer of (a) remain essentially unreacted during cure of the composition.

    摘要翻译: 单包稳定的橡胶基可固化组合物包含:(a)选自聚丁二烯,异戊二烯或氯丁橡胶的功能性均聚物的官能橡胶聚合物; 聚丁二烯,异戊二烯和/或氯丁橡胶的功能性共聚物; 和聚丁二烯,氯丁橡胶或异戊二烯与脂族或脂环族不饱和烃的官能共聚物; 和(b)包含硫的硫化体系,其中该组合物每100份组合物含有至少15份官能橡胶聚合物,并且每100份组合物中所有橡胶聚合物的总量含有至少15份硫, 条件是固化组合物的伸长率不超过15%,并且在(a)的功能性橡胶聚合物上存在的官能团在组合物固化期间基本上未反应。