Ethylene-Based Polymers And Articles Made Therefrom
    3.
    发明申请
    Ethylene-Based Polymers And Articles Made Therefrom 有权
    乙烯基聚合物及其制品

    公开(公告)号:US20090192270A1

    公开(公告)日:2009-07-30

    申请号:US12020944

    申请日:2008-01-28

    IPC分类号: C08L23/06

    摘要: Provided are ethylene-based polymer compositions, articles made therefrom, and methods of making the same. Ethylene-based polymer compositions include blends of a linear low density polyethylene prepared with metallocene catalyst and a low density polyethylene. The linear low density polyethylene may optionally have about five mole percent or less of monomer units derived from an alpha-olefin comonomer. Articles composed of such ethylene-based polymer compositions, such as blown films, exhibit favorable physical properties, including excellent optical properties and retained strength i.e., mitigation of expected decline in physical strength due to LDPE addition.

    摘要翻译: 提供的是基于乙烯的聚合物组合物,由其制成的制品及其制备方法。 基于乙烯的聚合物组合物包括由茂金属催化剂制备的线性低密度聚乙烯和低密度聚乙烯的共混物。 线性低密度聚乙烯可以任选地具有约5摩尔%或更少的衍生自α-烯烃共聚单体的单体单元。 由这种乙烯类聚合物组合物如吹塑薄膜组成的物品表现出良好的物理性能,包括优异的光学性能和保留的强度,即减轻由于LDPE添加引起的预期的物理强度下降。

    Ethylene-Based Polymers and Articles Made Therefrom
    4.
    发明申请
    Ethylene-Based Polymers and Articles Made Therefrom 审中-公开
    乙烯基聚合物及其制品

    公开(公告)号:US20090156764A1

    公开(公告)日:2009-06-18

    申请号:US11959078

    申请日:2007-12-18

    IPC分类号: C08F4/44 B28B5/00

    摘要: Provided are ethylene-based polymer compositions, articles made therefrom, and methods of making the same. Ethylene-based polymer compositions include linear low density polyethylene prepared with metallocene catalyst, which may optionally have about 5 mole percent or less of monomer units derived from an alpha-olefin comonomer. Ethylene-based polymer compositions include blends of linear low density polyethylene and one or more very low density polyethylene compositions, one or more low density polyethylene compositions, one or more medium density polyethylene compositions, one or more high density polyethylene compositions, one or more differentiated polyethylene compositions, or other conventional polymers. Articles composed of such ethylene-based polymer compositions are prepared according to a process window, e.g., at a specific extrusion rates, which provides favorable physical properties, including tear resistance and dart drop properties. Films prepared according to these techniques exhibit physical properties equivalent to, or superior than, conventional linear low density polyethylenes prepared with Ziegler-Natta catalyst.

    摘要翻译: 提供的是基于乙烯的聚合物组合物,由其制成的制品及其制备方法。 基于乙烯的聚合物组合物包括用茂金属催化剂制备的线性低密度聚乙烯,其可任选地具有约5摩尔%或更少的衍生自α-烯烃共聚单体的单体单元。 乙烯基聚合物组合物包括线性低密度聚乙烯和一种或多种极低密度聚乙烯组合物,一种或多种低密度聚乙烯组合物,一种或多种中密度聚乙烯组合物,一种或多种高密度聚乙烯组合物,一种或多种分化的 聚乙烯组合物或其它常规聚合物。 由这种基于乙烯的聚合物组合物制成的制品根据工艺窗口,例如以特定的挤出速率制备,其提供有利的物理性能,包括抗撕裂性和落镖性能。 根据这些技术制备的膜显示出与齐格勒 - 纳塔催化剂制备的常规线性低密度聚乙烯相当或优于的物理性能。

    Ethylene based polymers and articles made therefrom
    6.
    发明授权
    Ethylene based polymers and articles made therefrom 有权
    基于乙烯的聚合物和由其制成的制品

    公开(公告)号:US08765874B2

    公开(公告)日:2014-07-01

    申请号:US12020944

    申请日:2008-01-28

    IPC分类号: C08L23/00 C08L23/04

    摘要: Provided are ethylene-based polymer compositions, articles made therefrom, and methods of making the same. Ethylene-based polymer compositions include blends of a linear low density polyethylene prepared with metallocene catalyst and a low density polyethylene. The linear low density polyethylene may optionally have about five mole percent or less of monomer units derived from an alpha-olefin comonomer. Articles composed of such ethylene-based polymer compositions, such as blown films, exhibit favorable physical properties, including excellent optical properties and retained strength i.e., mitigation of expected decline in physical strength due to LDPE addition.

    摘要翻译: 提供的是基于乙烯的聚合物组合物,由其制成的制品及其制备方法。 基于乙烯的聚合物组合物包括由茂金属催化剂制备的线性低密度聚乙烯和低密度聚乙烯的共混物。 线性低密度聚乙烯可以任选地具有约5摩尔%或更少的衍生自α-烯烃共聚单体的单体单元。 由这种乙烯类聚合物组合物如吹塑薄膜组成的物品表现出良好的物理性能,包括优异的光学性能和保留的强度,即减轻由于LDPE添加引起的预期的物理强度下降。

    Polymers, Polymer Blends, and Articles Made Therefrom
    7.
    发明申请
    Polymers, Polymer Blends, and Articles Made Therefrom 审中-公开
    聚合物,聚合物共混物及其制品

    公开(公告)号:US20130266786A1

    公开(公告)日:2013-10-10

    申请号:US13796491

    申请日:2013-03-12

    IPC分类号: C08F10/02

    摘要: Polymer compositions including an ethylene-based polymer having a melt index of from about 0.1 g/10 min to about 5.0 g/10 min; a melt index ratio of from about 15 to about 30; a weight average molecular weight (Mw) of from about 20,000 to about 200,000; a molecular weight distribution (Mw/Mn) of from about 2.0 to about 4.5; and a density of from 0.900 to 0.920 g/cm3. Films having a thickness of 1 mil show a difference between the maximum seal strength and the minimum seal strength over the ranges of temperatures between 95.0° C. and 140.0° C. of ≦1.00×102 grams/cm.

    摘要翻译: 包括熔体指数为约0.1g / 10min至约5.0g / 10min的基于乙烯的聚合物的聚合物组合物; 熔体指数比为约15至约30; 重均分子量(Mw)为约20,000至约200,000; 分子量分布(Mw / Mn)为约2.0至约4.5; 密度为0.900〜0.920g / cm3。 厚度为1密耳的膜在@ 1.00×102克/厘米2的温度范围为95.0℃至140.0℃之间显示最大密封强度和最小密封强度之间的差异。