Foamed polypropylene with improved cell structure
    3.
    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。

    POLYETHYLENE COMPOSITION FOR LARGE DIAMETER PIPE STABILITY
    5.
    发明申请
    POLYETHYLENE COMPOSITION FOR LARGE DIAMETER PIPE STABILITY 有权
    聚乙烯组合物用于大直径管道稳定性

    公开(公告)号:US20120175008A1

    公开(公告)日:2012-07-12

    申请号:US13004315

    申请日:2011-01-11

    IPC分类号: F16L9/12 B29C47/00

    CPC分类号: F16L9/127

    摘要: Pipe articles and methods of forming the same are described herein. The methods generally include providing an ethylene based polymer; contacting the ethylene based polymer with a secondary stabilizer including a diphosphite to form a modified polyethylene; and forming the modified polyethylene into a pipe.

    摘要翻译: 本文描述了管件及其形成方法。 所述方法通常包括提供基于乙烯的聚合物; 使乙烯基聚合物与包含二亚磷酸酯的二级稳定剂接触以形成改性聚乙烯; 并将改性聚乙烯制成管。

    CROSSLINKABLE HIGH MELT STRENGTH POLYPROPYLENE RESINS
    6.
    发明申请
    CROSSLINKABLE HIGH MELT STRENGTH POLYPROPYLENE RESINS 审中-公开
    可交联的高熔点强度聚丙烯树脂

    公开(公告)号:US20120065333A1

    公开(公告)日:2012-03-15

    申请号:US12882274

    申请日:2010-09-15

    IPC分类号: C08L51/00

    摘要: Crosslinkable silane-grafted polypropylene compositions and processes of forming the same are described herein. The processes generally include contacting a polyolefin, a multifunctional monomer and a silane compound in the presence of a radical initiator, wherein the polyolefin is selected from polypropylene, polyethylene, combinations thereof and copolymers thereof.

    摘要翻译: 可交联的硅烷接枝的聚丙烯组合物及其形成方法在此描述。 所述方法通常包括在自由基引发剂存在下使聚烯烃,多官能单体和硅烷化合物接触,其中所述聚烯烃选自聚丙烯,聚乙烯,其组合及其共聚物。