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    EXPANDED POLYPROPYLENE COPOLYMER RESIN PARTICLES
    61.
    发明申请
    EXPANDED POLYPROPYLENE COPOLYMER RESIN PARTICLES 有权
    膨胀聚丙烯共聚物树脂颗粒

    公开(公告)号：US20120029101A1

    公开(公告)日：2012-02-02

    申请号：US13262495

    申请日：2010-03-30

    Applicant: Kenichi Senda

    Inventor： Kenichi Senda

    IPC: B29C44/38 ,  C08J9/22 ,  C08F210/06

    CPC classification number: C08J9/18 ,  C08J9/232 ,  C08J2203/06 ,  C08J2323/14

    Abstract: Disclosed is an expanded polypropylene copolymer resin particle whose base resin is a polypropylene random copolymer resin having a melting point of not more than 145° C., the base resin having a H/W ratio of not more than 8 where H (%) is a maximum height of an elution peak and W (° C.) is a peak width at half a height of the peak in an elution curve obtained from a differential value of eluted content measured by cross fractionation chromatography, and a ratio (Mw/Mn) of a weight-average molecular weight (Mw) and a number-average molecular weight (Mn) being not less than 3.5 in a molecular weight distribution measurement of a whole of eluted components. With such an expanded polypropylene copolymer resin particle, it is possible to provide expanded polypropylene copolymer resin particles which are capable of producing an in-mold expansion-molded article with a low molding heating vapor pressure, and which causes few deformation or shrinkage of an obtained in-mold expansion-molded article (i.e. having a broad molding heating temperature range) even if the in-mold expansion molding is carried out with a high molding heating vapor pressure and has a low decrease in physical properties such as compression strength.

    Abstract translation: 公开了一种发泡聚丙烯共聚物树脂颗粒，其基础树脂是熔点不大于145℃的聚丙烯无规共聚物树脂，H / W比不大于8的基础树脂，其中H（％）为 洗脱峰的最大高度和W（℃）是从通过交叉分级色谱法测定的洗脱物含量的差异值得到的洗脱曲线中峰的高度的峰宽度，Mw / Mn ）在全部洗脱组分的分子量分布测量中的重均分子量（Mw）和数均分子量（Mn）不小于3.5。 使用这种发泡聚丙烯共聚物树脂颗粒，可以提供能够制造模制加热蒸汽压低的模内发泡成型制品的发泡聚丙烯共聚物树脂颗粒，并且所得到的聚丙烯共聚物树脂颗粒几乎没有变形或收缩 模内发泡成型体（即，具有宽的成型加热温度范围），即使模内发泡成型是以高的成型加热蒸气压进行，物理性能如压缩强度的降低也低。

    Polypropylene resin composition and film made thereof
    62.
    发明授权
    Polypropylene resin composition and film made thereof 失效
    聚丙烯树脂组合物及其制成的薄膜

    公开(公告)号：US08022148B2

    公开(公告)日：2011-09-20

    申请号：US12667593

    申请日：2008-07-03

    Applicant: Hiroshi Nozawa

    Inventor： Hiroshi Nozawa

    IPC: C08K5/04

    CPC classification number: C08L23/14 ,  C08J5/18 ,  C08J2323/14 ,  C08K5/14 ,  C08L23/04 ,  C08L23/142 ,  C08L2666/06

    Abstract: A polypropylene resin composition that has a melt flow rate of 1.5 (g/10 minutes) or more and is obtainable by melt-kneading 94 to 98 parts by weight of (A) a propylene copolymer that comprises a polymer portion being obtainable by polymerizing monomers containing propylene as the major component and having an intrinsic viscosity of 2.0 (dL/g) or more and a copolymer portion being obtainable by copolymerizing propylene and ethylene, 2 to 6 parts by weight of (B) an ethylene polymer having a density of 0.920 g/cm3 or more, and (C) an organic peroxide, provided that the total weight of the propylene copolymer (A) and the ethylene polymer (B).

    Abstract translation: 一种聚丙烯树脂组合物，其熔体流动速率为1.5（g / 10分钟）以上，通过熔融混炼得到94〜98重量份的（A）丙烯共聚物，该丙烯共聚物包含聚合物部分，该聚合物部分可通过聚合单体 含有丙烯作为主要成分，特性粘度为2.0（dL / g）以上，共聚物部分可通过丙烯与乙烯共聚获得，2〜6重量份的（B）密度为0.920的乙烯聚合物 g / cm 3以上，（C）有机过氧化物，前提是丙烯共聚物（A）和乙烯聚合物（B）的总重量。

    POLYPROPYLENE-BASED RESIN COMPOSITION AND FILM
    66.
    发明申请
    POLYPROPYLENE-BASED RESIN COMPOSITION AND FILM 有权
    基于聚丙烯的树脂组合物和薄膜

    公开(公告)号：US20090292076A1

    公开(公告)日：2009-11-26

    申请号：US12466496

    申请日：2009-05-15

    Applicant: Yukito Miyaguchi ,  Hideaki Hori

    Inventor： Yukito Miyaguchi ,  Hideaki Hori

    IPC: C08L23/16

    CPC classification number: C08J5/18 ,  C08J2323/14 ,  C08L23/142 ,  C08L2205/02 ,  C08L2666/06

    Abstract: A polypropylene-based resin composition comprising 61 to 85% by weight of a copolymer (X) of propylene, α-olefin having 4 or more of carbon atoms and/or ethylene, in which a content of a constitutional unit derived from propylene is 86 to 97% by weight, a total of a content of a constitutional unit derived from ethylene and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 3 to 14% by weight, provided that a total of the content of a constitutional unit derived from propylene, the content of a constitutional unit derived from ethylene and the content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is defined to be 100% by weight, 1 to 38% by weight of a copolymer (Y) of propylene and α-olefin having 4 or more of carbon atoms, in which a melting point is 115° C. or more, and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 10 to 30% by weight, and 1 to 38% by weight of a copolymer (Z) of propylene and α-olefin having 4 or more of carbon atoms, in which a melting point is less than 115° C., and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 30 to 40% by weight, wherein a total of the copolymer (X), the copolymer (Y) and the copolymer (Z) is defined to be 100% by weight.

    Abstract translation: 一种聚丙烯类树脂组合物，其包含61〜85重量％的丙烯共聚物（X），碳原子数为4以上的α-烯烃和/或乙烯，其中来自丙烯的结构单元的含量为86 至97重量％，衍生自乙烯的结构单元的含量和源自具有4个或更多个碳原子的α-烯烃的结构单元的含量的总量为3至14重量％，条件是总共 衍生自丙烯的结构单元的含量，衍生自乙烯的结构单元的含量和衍生自具有4个或更多个碳原子的α-烯烃的结构单元的含量定义为100重量％，1至38 丙烯和具有4个或更多个碳原子的α-烯烃的共聚物（Y）的重量百分比，其中熔点为115℃或更高，以及来源于具有4个碳原子的α-烯烃的结构单元的含量 以上的碳原子为10〜30重量％ 至38重量％的丙烯和具有4个或更多个碳原子的α-烯烃的共聚物（Z），其中熔点小于115℃，并且衍生自α-烯烃的结构单元的含量 具有4个以上的碳原子数为30〜40重量％，其中共聚物（X），共聚物（Y）和共聚物（Z）的合计为100重量％。

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