Polyethylene composition
    6.
    发明授权
    Polyethylene composition 失效
    聚乙烯组成

    公开(公告)号:US3976612A

    公开(公告)日:1976-08-24

    申请号:US552182

    申请日:1975-02-24

    IPC分类号: C08K3/30 C08L23/06 C08L91/00

    摘要: A polyethylene composition consisting of: (A) a high density polyethylene with a viscosity-average molecular weight of 10 .times. 10.sup.4 to 20 .times. 10.sup.4, a number average molecular weight of 1 .times. 10.sup.4 or greater and a ratio between weight average molecular weight and number average molecular weight of 20 or less; (B) at least one inorganic calcium compound selected from a group consisting of calcium sulfite, calcium sulfate and calcium carbonate; and (C) a solid lubricant, if desired, the composition produces a film or sheet whose internal tearing resistance is high and equal in both longitudinal and lateral directions and the processibility of the resin composition may be extremely improved by incorporating as a fourth component, within a range of 1:5 to 5:1 in weight ratio with respect to the aforementioned high density polyethylene, a different high density polyethylene with a melt index of 0.1 to 1.0.

    摘要翻译: 一种聚乙烯组合物,由以下组成:(A)粘均分子量为10×10 4〜20×10 4,数均分子量为1×10 4以上的高密度聚乙烯,重均分子量与数均分子量 平均分子量为20以下; (B)至少一种选自亚硫酸钙,硫酸钙和碳酸钙的无机钙化合物; 和(C)固体润滑剂,如果需要,组合物产生其内部抗撕裂性高且在纵向和横向两个方面相同的膜或片,并且通过掺入作为第四组分可以极大地改善树脂组合物的加工性, 相对于上述高密度聚乙烯,重量比为1:5〜5:1的范围,熔融指数为0.1〜1.0的不同的高密度聚乙烯。