Random propylene copolymers
    2.
    发明授权
    Random propylene copolymers 有权
    无规丙烯共聚物

    公开(公告)号:US07026421B2

    公开(公告)日:2006-04-11

    申请号:US10971079

    申请日:2004-10-25

    IPC分类号: C08F210/06 C08F210/08

    摘要: Random copolymers of propylene with other 1-alkenes having up to carbon atoms, whose content of comonomers is in the range from 0.7 to 1.4% by weight if the only comonomer present in the propylene copolymers is ethylene, or whose content of comonomers is in the range from 0.7 to 3.0% by weight if at least one C4–C10-1-alkene is present as comonomer, and whose cold-xylene-soluble fraction is from 1.0 to 2.5% by weight if ethylene is present as a comonomer in the propylene copolymers, or whose cold-xylene-soluble fraction is from 0.75 to 2.0% by weight if the only comonomers present are C4–C10-1-alkenes, and a process for preparing the random copolymers of propylene is described, as is their use for producing films, fibers or moldings, and also the films, fibers and moldings themselves and biaxially stretched films made from random propylene copolymers of this type and processes for their production.

    摘要翻译: 丙烯与具有至多碳原子的其它1-烯烃的无规共聚物,如果丙烯共聚物中存在的共聚单体中唯一的共聚单体为共聚单体,其共聚单体的含量为0.7-1.4重量%,或其共聚单体的含量为 如果至少一个C 4 -C 10 - 1-烯烃作为共聚单体存在,其冷二甲苯可溶成分为 如果乙烯作为丙烯共聚物中的共聚单体存在,则其重量为1.0至2.5重量%,或者如果仅存在共聚单体为C 4 - 4,则冷二甲苯可溶成分为0.75-2.0重量% 描述了用于制备膜,纤维或模制品的方法,以及薄膜,纤维和模制品本身以及双轴的方法制备丙烯的无规共聚物的方法。 由这种类型的无规丙烯共聚物制成的拉伸薄膜及其生产方法。