Foamed polypropylene with improved cell structure
    1.
    发明申请
    Foamed polypropylene with improved cell structure 审中-公开
    发泡聚丙烯具有改善的细胞结构

    公开(公告)号:US20060148920A1

    公开(公告)日:2006-07-06

    申请号:US11027442

    申请日:2004-12-30

    IPC分类号: B29C44/34

    摘要: Alicyclic carboxylates, such as alicyclic norbonane sodium dicarboxylate, may be used in relatively small amounts as crystallization nucleating agents for foamed polypropylene. The alicyclic carboxylates give improved cell structures at lower proportions than conventional crystallization nucleating agents. The use of alicyclic carboxylate crystallization nucleating agents together with conventional nucleating agents may help give lower density polypropylene foams across a broader melt temperature range.

    摘要翻译: 作为泡沫聚丙烯的结晶成核剂,可以使用较少量的脂环族羧酸盐,例如脂肪族二羰基二羧酸钠二羧酸钠。 脂环羧酸盐以比常规结晶成核剂更低的比例提供改善的细胞结构。 使用脂环羧酸酯结晶成核剂与常规成核剂一起可能有助于在更宽的熔融温度范围内产生较低密度的聚丙烯泡沫。

    MODIFIED POLYPROPYLENE FOR PACKAGING APPLICATIONS
    3.
    发明申请
    MODIFIED POLYPROPYLENE FOR PACKAGING APPLICATIONS 审中-公开
    改性聚丙烯包装应用

    公开(公告)号:US20110305857A1

    公开(公告)日:2011-12-15

    申请号:US12814552

    申请日:2010-06-14

    IPC分类号: B32B1/02 C08L5/00

    摘要: Methods of forming a clear packaging container, polymers for use therein and packaging containers are described herein. The methods generally include providing a propylene based polymer formed from a metallocene catalyst; blending the propylene based polymer with a nonitol-based clarifying agent to form clarified polypropylene; and forming the clarified polypropylene into a packaging container, wherein the packaging container exhibits a gloss that is at least 6% greater than a container formed from a Ziegler-Natta formed propylene based polymer blended with the clarifying agent.

    摘要翻译: 本文描述了形成透明包装容器,其中使用的聚合物和包装容器的方法。 所述方法通常包括提供由茂金属催化剂形成的丙烯基聚合物; 将基于丙烯的聚合物与基于非醇的澄清剂共混以形成澄清的聚丙烯; 以及将澄清的聚丙烯形成包装容器,其中所述包装容器的光泽度比由与所述澄清剂混合的齐格勒 - 纳塔形成的丙烯类聚合物形成的容器大至少6%。

    Properties of polyolefin blends and their manufactured articles
    6.
    发明申请
    Properties of polyolefin blends and their manufactured articles 有权
    聚烯烃共混物及其制品的性能

    公开(公告)号:US20050027077A1

    公开(公告)日:2005-02-03

    申请号:US10628222

    申请日:2003-07-28

    摘要: A polymer blend and a method of making the same are provided. The polymer blend includes an ethylene-propylene (C2-C3) random copolymer and a modifier selected from the group consisting of a metallocene-catalyzed polyethylene-based copolymer, a metallocene-catalyzed polyethylene-based terpolymer, and a syndiotactic polypropylene homopolymer. The polymer blend may also include an organic peroxide for visbreaking the polymer blend. An end use article is made from the foregoing polymer blend. The end use article may be, for example, a film, an injection molded article, a compression molded article, a thermoformed article, and a fiber. The end use article is desirably a film having an Elmendorf tear strength of at least about 300 g/ply in the machine and transverse directions.

    摘要翻译: 提供聚合物共混物及其制备方法。 聚合物共混物包括乙烯 - 丙烯(C 2 -C 3)无规共聚物和选自茂金属催化的聚乙烯基共聚物,茂金属催化的聚乙烯基三元共聚物和间同立构聚丙烯均聚物的改性剂。 聚合物共混物还可以包括用于减粘裂化聚合物共混物的有机过氧化物。 从上述聚合物共混物制成最终用途制品。 最终用途物品可以是例如膜,注射成型制品,压塑制品,热成型制品和纤维。 最终用途制品理想地是在机器和横向上具有至少约300g /层的埃尔曼多夫撕裂强度的膜。

    Properties of polyolefin blends and their manufactured articles
    8.
    发明授权
    Properties of polyolefin blends and their manufactured articles 有权
    聚烯烃共混物及其制品的性能

    公开(公告)号:US07122601B2

    公开(公告)日:2006-10-17

    申请号:US10628222

    申请日:2003-07-28

    摘要: A polymer blend and a method of making the same are provided. The polymer blend includes an ethylene-propylene (C2–C3) random copolymer and a modifier selected from the group consisting of a metallocene-catalyzed polyethylene-based copolymer, a metallocene-catalyzed polyethylene-based terpolymer, and a syndiotactic polypropylene homopolymer. The polymer blend may also include an organic peroxide for visbreaking the polymer blend. An end use article is made from the foregoing polymer blend. The end use article may be, for example, a film, an injection molded article, a compression molded article, a thermoformed article, and a fiber. The end use article is desirably a film having an Elmendorf tear strength of at least about 300 g/ply in the machine and transverse directions.

    摘要翻译: 提供聚合物共混物及其制备方法。 聚合物共混物包括乙烯 - 丙烯(C 2 -C 3 -C 3)无规共聚物和选自茂金属催化的聚乙烯基共聚物, 金属茂催化的聚乙烯基三元共聚物和间同立构聚丙烯均聚物。 聚合物共混物还可以包括用于减粘裂化聚合物共混物的有机过氧化物。 从上述聚合物共混物制成最终用途制品。 最终用途物品可以是例如膜,注射成型制品,压塑制品,热成型制品和纤维。 最终用途制品理想地是在机器和横向上具有至少约300g /层的埃尔曼多夫撕裂强度的膜。

    Properties of polyolefin blends and their manufactured articles
    10.
    发明授权
    Properties of polyolefin blends and their manufactured articles 有权
    聚烯烃共混物及其制品的性能

    公开(公告)号:US07309739B2

    公开(公告)日:2007-12-18

    申请号:US11264904

    申请日:2005-11-02

    摘要: A polymer blend and a method of making the same are provided. The polymer blend includes an ethylene-propylene (C2-C3) random copolymer and a modifier selected from the group consisting of a metallocene-catalyzed polyethylene-based copolymer, a metallocene-catalyzed polyethylene-based terpolymer, and a syndiotactic polypropylene homopolymer. The polymer blend may also include an organic peroxide for visbreaking the polymer blend. An end use article is made from the foregoing polymer blend. The end use article may be, for example, a film, an injection molded article, a compression molded article, a thermoformed article, and a fiber. The end use article is desirably a film having an Elmendorf tear strength of at least about 300 g/ply in the machine and transverse directions.

    摘要翻译: 提供聚合物共混物及其制备方法。 聚合物共混物包括乙烯 - 丙烯(C 2 -C 3 -C 3)无规共聚物和选自茂金属催化的聚乙烯基共聚物, 金属茂催化的聚乙烯基三元共聚物和间同立构聚丙烯均聚物。 聚合物共混物还可以包括用于减粘裂化聚合物共混物的有机过氧化物。 从上述聚合物共混物制成最终用途制品。 最终用途物品可以是例如膜,注射成型制品,压塑制品,热成型制品和纤维。 最终用途制品理想地是在机器和横向上具有至少约300g /层的埃尔曼多夫撕裂强度的膜。