Adhesives based on elastomeric copolymers having theromplastic polymer
grafts
    1.
    发明授权
    Adhesives based on elastomeric copolymers having theromplastic polymer grafts 失效
    基于具有THEROMPLASTIC POLYMER GRAFTS的弹性体共聚物的粘合剂

    公开(公告)号:US5227426A

    公开(公告)日:1993-07-13

    申请号:US634847

    申请日:1990-12-27

    IPC分类号: C09J151/06 C09J153/00

    CPC分类号: C09J151/06 C09J153/00

    摘要: An adhesive is disclosed. The adhesive is a blend of a tackifier and a polymer, having an elastomeric main chain and incorporating thermoplastic macromonomer side chain grafts, which can exhibit enhanced shear thinning and allow spray application of the adhesive onto a substrate. In one embodiment, the polymer main chain comprises a polymer of an isoolefin having about 4 to about 7 carbon atoms and a para-alkylstyrene, and the side chains comprise a grafted macromonomer, such as a terminally functionalized polystyryl chain of very narrow molecular weight distribution, attached to the para-alkyl group of the para-alkylstyrene. In another embodiment, the polymer comprises a polyolefin main chain and a norbornene terminated macromolecule copolymerized to introduce the side chains.

    摘要翻译: 公开了粘合剂。 粘合剂是增粘剂和聚合物的共混物,其具有弹性体主链并结合热塑性大分子单体侧链接枝,其可以表现出增强的剪切稀化并允许将粘合剂喷涂到基底上。 在一个实施方案中,聚合物主链包含具有约4至约7个碳原子的异烯烃聚合物和对烷基苯乙烯,并且侧链包含接枝的大分子单体,例如非常窄的分子量分布的末端官能化聚苯乙烯基链 ,连接在对位烷基苯乙烯的对位烷基上。 在另一个实施方案中,聚合物包含聚烯烃主链和降冰片烯封端的大分子共聚以引入侧链。