Co-extruded film structures of polypropylene impact copolymer with other polymers
    4.
    发明申请
    Co-extruded film structures of polypropylene impact copolymer with other polymers 审中-公开
    聚丙烯冲压共聚物与其他聚合物的共挤出膜结构

    公开(公告)号:US20060147663A1

    公开(公告)日:2006-07-06

    申请号:US11026848

    申请日:2004-12-30

    IPC分类号: B32B27/32

    摘要: It has been discovered that the properties of sheet or film materials or structures can be improved by co-extruding a rubber-impact modified heterophasic copolymer core layer with at least a second polyolefin. The second polyolefin may be a Ziegler-Natta catalyzed polyethylene (ZN PE), Ziegler-Natta catalyzed polypropylene random copolymer (ZN PP RCP), a metallocene catalyzed polypropylene random copolymer (mPP RCP), a linear low density polyethylene (LLDPE) and/or a metallocene catalyzed medium density polyethylene (mMDPE). Improvements include, but are not necessarily limited to, reduced haze and increased gloss. These sheet or film materials may be co-extruded with other resins or laminated with other materials after extrusion.

    摘要翻译: 已经发现,可以通过将橡胶冲击改性的多相共聚物芯层与至少第二聚烯烃共挤出来改善片材或薄膜材料或结构的性质。 第二聚烯烃可以是齐格勒 - 纳塔催化聚乙烯(ZN PE),齐格勒 - 纳塔催化聚丙烯无规共聚物(ZN PP RCP),茂金属催化的聚丙烯无规共聚物(mPP RCP),线性低密度聚乙烯(LLDPE)和/ 或茂金属催化的中密度聚乙烯(mMDPE)。 改进包括但不一定限于减少雾度和增加的光泽度。 这些片材或薄膜材料可以与其它树脂共挤出,或者在挤出之后与其它材料层压。

    Injection molded parts and method of making same
    9.
    发明申请
    Injection molded parts and method of making same 审中-公开
    注塑件及其制造方法

    公开(公告)号:US20050249900A1

    公开(公告)日:2005-11-10

    申请号:US10838513

    申请日:2004-05-04

    IPC分类号: B32B7/04 B32B27/32

    摘要: Disclosed is a method for preparing an injection molded article comprising bringing an injection molded substrate into contact with a polymer film during an injection molding process at a point in the injection molding process, the resulting part having improved surface properties such as low heat seal initiation temperature while retaining substantially all of the mechanical characteristics of the substrate. Random polypropylene copolymers are disclosed as being useful for preparing the polymer films.

    摘要翻译: 公开了一种注射成型制品的制备方法,包括在注射成型工艺中的注射成型过程中使注射成型基材与聚合物膜接触,所得到的部件具有改善的表面性质,例如低热封起始温度 同时保持基板的基本上所有的机械特性。 公开了无规聚丙烯共聚物可用于制备聚合物膜。