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66 条记录 (耗时 0.031 秒)

    Easy tear non-halogenic food wrap
    23.
    发明授权
    Easy tear non-halogenic food wrap 失效
    易撕无卤食品包装

    公开(公告)号：US06482532B1

    公开(公告)日：2002-11-19

    申请号：US09589925

    申请日：2000-06-07

    申请人： Peter C. C. Yap ,  Shih-Yaw Lai

    发明人： Peter C. C. Yap ,  Shih-Yaw Lai

    IPC分类号： B32B2732

    CPC分类号： C08J5/18 ,  B32B27/32 ,  C08J2323/04 ,  C08L23/0815 ,  C08L2205/02 ,  Y10S428/91 ,  Y10T428/31913 ,  Y10T428/31938 ,  C08L2666/04

    摘要： Easy-tear, non-halogenated, high-clarity ethylene polymer films are described that do not contain migratory additives and that are useful as a domestic food wrap. These films also exhibit high inherent cling values. In one embodiment, the film is multilayered in which the outer layers comprise a very low density heterogeneously linear polyethylene or a homogeneously branched polyethylene, preferably a substantially linear ethylene polymer, and the inner layer(s) comprise a low density polyethylene. In another embodiment, the film is a monolayer, or multiple layers of the same formula, in which the film comprises a mixture of a very low density heterogeneous linear polyethylene or a homogeneously branched polyethylene, preferably a SLEP, and a LDPE.

    摘要翻译： 描述了易撕，非卤化，高透明度的乙烯聚合物膜，其不含迁移添加剂并且可用作家用食品包装。 这些膜也表现出高固有的粘附值。 在一个实施方案中，膜是多层的，其中外层包含非常低密度的非均匀线性聚乙烯或均匀支化的聚乙烯，优选基本上线性的乙烯聚合物，并且内层包含低密度聚乙烯。 在另一个实施方案中，膜是单层或相同配方的多层，其中该膜包含非常低密度的异质线性聚乙烯或均匀支化的聚乙烯，优选SLEP和LDPE的混合物。

    Performance super high flow ethylene polymer compositions
    26.
    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：US5589128A

    公开(公告)日：1996-12-31

    申请号：US289978

    申请日：1994-08-12

    申请人： Shih-Yaw Lai ,  Lonnie G. Hazlitt ,  Pak-Wing S. Chum

    发明人： Shih-Yaw Lai ,  Lonnie G. Hazlitt ,  Pak-Wing S. Chum

    IPC分类号： C08L23/06 ,  C08L23/08 ,  B29B7/00

    CPC分类号： C08L23/06 ,  C08L23/0815 ,  C08L2207/20 ,  Y10T428/1352 ,  Y10T428/139

    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。

    Polyolefin blends and their solid state processing
    27.
    发明授权
    Polyolefin blends and their solid state processing 失效
    聚烯烃共混物及其固态加工

    公开(公告)号：US5408004A

    公开(公告)日：1995-04-18

    申请号：US107482

    申请日：1993-08-17

    申请人： Shih-Yaw Lai ,  Morris S. Edmondson

    发明人： Shih-Yaw Lai ,  Morris S. Edmondson

    IPC分类号： C08J5/00 ,  C08L23/00 ,  C08L23/02 ,  C08L23/04 ,  C08L23/06 ,  C08L23/08 ,  C08L23/10

    CPC分类号： C08L23/0815 ,  C08L23/06 ,  C08L2205/02

    摘要： Polyolefin blends characterized by melting and crystallization curves which exhibit either two distinct melt regions, or wherein one component of the blend has a low softening temperature relative to the individual components of the blend, provide an unusually wide window for solid state processing. The solid state processing characteristics of these blends are independent of the manner in which the blends are formulated, e.g. mechanical mixing, solvent dispersion, and the like.

    摘要翻译： 聚烯烃共混物的熔融和结晶曲线表现出两个不同的熔融区域，或者其中共混物的一个组分相对于共混物的各个组分具有低的软化温度，为固态加工提供了非常宽的窗口。 这些共混物的固态加工特性与配制共混物的方式无关。 机械混合，溶剂分散等。