Melt-processed blends containing poly(vinyl alcohol)
    9.
    发明授权
    Melt-processed blends containing poly(vinyl alcohol) 失效
    含有聚(乙烯醇)的熔融加工混合物

    公开(公告)号:US5753752A

    公开(公告)日:1998-05-19

    申请号:US798416

    申请日:1997-02-07

    IPC分类号: C08L25/12 C08L29/04 C08F16/06

    CPC分类号: C08L29/04 C08L25/12

    摘要: Polymers containing a high percentage of vinyl alcohol units are difficult to process into sheet, film, injection-molded objects, or fibers. Such melt-processing is greatly enhanced by admixing certain core/shell copolymers having a rubbery, preferably crosslinked core mainly of units derived from butadiene, and an outer shell mainly of a copolymer of styrene and acrylonitrile. Such copolymers do not require the presence of functional groups capable of reaction with the hydroxyl groups of the poly(vinyl alcohol).

    摘要翻译: 含有高百分比的乙烯醇单元的聚合物难以加工成片,膜,注射成型物体或纤维。 这种熔融加工通过将具有橡胶状,优选交联的核心主要是衍生自丁二烯的单元和主要由苯乙烯和丙烯腈的共聚物的外壳混合到一些核/壳共聚物而大大提高。 这种共聚物不需要存在能够与聚(乙烯醇)的羟基反应的官能团。