Melt extrudable polyvinyl alcohol compositions
    1.
    发明授权
    Melt extrudable polyvinyl alcohol compositions 失效
    熔融挤出的聚乙烯醇组合物

    公开(公告)号:US3997489A

    公开(公告)日:1976-12-14

    申请号:US527063

    申请日:1974-11-25

    CPC classification number: C08K5/053 C08L29/04 C08L23/08

    Abstract: Polyvinyl alcohol compositions of improved melt flow characteristics are obtained by the use of extrusion aids comprising a combination of a low molecular weight hydrocarbon oil or wax and a higher molecular weight ethylene homo- or copolymer. The improvement is even more pronounced in the presence of a plasticizer.

    Abstract translation: 通过使用包含低分子量烃油或蜡和较高分子量乙烯均聚物或共聚物的组合的挤出助剂获得改进的熔体流动特性的聚乙烯醇组合物。 在增塑剂的存在下,改进甚至更显着。

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