Oriented Films Comprising Ethylene/a-Olefin Block Interpolymer
    3.
    发明申请
    Oriented Films Comprising Ethylene/a-Olefin Block Interpolymer 审中-公开
    包含乙烯/α-烯烃嵌段共聚物的取向膜

    公开(公告)号:US20110039082A1

    公开(公告)日:2011-02-17

    申请号:US12919131

    申请日:2008-02-29

    摘要: The present invention relates to oriented films having improved shrinkage force, shrinkage temperature, tear strength, seal strength and/or bubble stability. For example, the shrink tension of the oriented film stretched at 110° C. is less than 3 MPa. The oriented film comprises a polymer composition comprising at least one ethylene/α-olefin interpolymer, wherein the ethylene/α-olefin interpolymer may have, for example, a Mw/Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship: Tm>−6553.3+13735(d)−7051.7(d)2.

    摘要翻译: 本发明涉及具有改进的收缩力,收缩温度,撕裂强度,密封强度和/或气泡稳定性的取向膜。 例如,在110℃拉伸的取向膜的收缩张力小于3MPa。 取向膜包括含有至少一种乙烯/α-烯烃互聚物的聚合物组合物,其中乙烯/α-烯烃互聚物可具有例如约1.7至约3.5的Mw / Mn,至少一个熔点Tm ,以克/立方厘米为单位的密度d,其中Tm和d的数值对应于Tm> -6553.3 + 13735(d)-7051.7(d)2的关系。

    Performance super high flow ethylene polymer compositions
    8.
    发明授权
    Performance super high flow ethylene polymer compositions 失效
    性能超高流量乙烯聚合物组合物

    公开(公告)号:US5346732A

    公开(公告)日:1994-09-13

    申请号:US924775

    申请日:1992-08-04

    IPC分类号: C08L23/06 C08L23/08 B29D22/00

    摘要: Super high flow ethylene polymer compositions comprising at least one linear ethylene polymer are disclosed which have improved processability for use in making thermally formed articles (e.g., thin-walled lids, cups and containers). The compositions have a processing index from about 0.005 KPoise to about 1 KPoise and are particularly useful in thermal forming processes having shear rates of at least 2,000 sec.sup.-1 (e.g., injection molding processes). The compositions can be used to make thin-walled lids and cups and have good environmental stress crack resistance and Gullwing Tear properties.

    摘要翻译: 公开了包含至少一种直链乙烯聚合物的超高流动乙烯聚合物组合物,其具有改进的加工性,用于制造热成型制品(例如,薄壁盖,杯和容器)。 组合物具有约0.005KPise至约1KPoise的加工指数,并且特别适用于剪切速率为至少2,000秒-1(例如注射成型工艺)的热成型工艺。 组合物可用于制备薄壁盖和杯,并具有良好的耐环境应力开裂性和鸥鸥撕裂性能。