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    Orientated polyolefins
    2.
    发明公开
    Orientated polyolefins 失效
    东方聚烯烃。

    公开(公告)号：EP0151343A1

    公开(公告)日：1985-08-14

    申请号：EP84308563.0

    申请日：1984-12-10

    申请人： STAMICARBON B.V.

    发明人： Bashir, Zahir, c/o University of Bristol ,  Keller, Andrew, c/o University of Bristol ,  Odell, Jeffrey Arthur, c/o University of Bristol

    IPC分类号： D01D5/12 ,  C08L23/04 ,  D01F6/04

    CPC分类号： D01F6/04 ,  B29C55/00 ,  B29K2023/00

    摘要： The present invention relates to an orientated polyolefin composition comprising an olefin (co)polymer having a weight average molecular weight (Mw) from 30,000 to 1,000,000 and a high molecular weight tail extending to molecular weights above 1,000,000, and has a microstructure which is substantially parallel chain extended cores of the component polymer(s) and associated lamellar overgrowths extending in planes normal to the cores. The , lamellar overgrowths on adjacent cores intermesh and are capable of sustaining a haul off tension of at least 10 MPa without breaking during its extrusion.
    The orientated polyolefin composition is produced by extruding an olefin copolymer through a die under a pressure of about 5-10 MPa, at a temperature above the self-blocking temperature thereof and by hauling off the extrudate at a tension of at least 10 MPa without breaking. The extrudates so produced have a high modulus.

    摘要翻译： 本发明涉及一种取向聚烯烃组合物，其包含重均分子量（Mw）为30,000至1,000,000的烯烃（共）聚合物和分子量大于1,000,000的高分子量尾部，并且具有基本平行的微结构 组分聚合物的链延长的芯和在垂直于芯的平面中延伸的相关的层状过度生长。 相邻芯层之间的层状过度生长是相互啮合的，并且能够在其挤出期间保持至少10MPa的牵引张力而不破裂。 ...定向的聚烯烃组合物是通过在约5-10MPa的压力下，在高于其自身阻塞温度的温度下通过模具挤出烯烃共聚物，并且在张力为 至少10 MPa不破裂。 如此制造的挤出物具有高模量。