Polypropylene resin composition
    2.
    发明授权
    Polypropylene resin composition 失效
    聚丙烯树脂组合物

    公开(公告)号:US6156836A

    公开(公告)日:2000-12-05

    申请号:US220440

    申请日:1998-12-24

    摘要: This invention provides polypropylene resin compositions which have sharply improved balance of physical properties in comparison with the related polypropylene materials, are materials that can be used in both interior and exterior parts of automobiles, have excellent thin-wall moldability and can sharply reduce generation of flow marks. Particularly, it provides a polypropylene resin composition which comprises specified amounts of (A) a specified ethylene-propylene block copolymer, (B) a specified thermoplastic elastomer and (C) talc, wherein it has specified values of physical properties measured by ASTM and has a degree of b-axis orientation of 720 or more which is calculated from the ratio of differential peak intensities measured by wide-angle X-ray diffraction of the central area of an ASTM No. 1 dumbbell prepared by injection molding.

    摘要翻译: 本发明提供与相关聚丙烯材料相比具有明显改善的物理平衡平衡的聚丙烯树脂组合物,可用于汽车内外部的材料,具有优异的薄壁成型性,并可大大减少流动的产生 分数。 特别地,它提供了一种聚丙烯树脂组合物,其包含规定量的(A)特定的乙烯 - 丙烯嵌段共聚物,(B)特定的热塑性弹性体和(C)滑石,其中其具有通过ASTM测量的具体的物理性质值,并具有 由通过注射成型制备的ASTM No.1哑铃的中心区域的广角X射线衍射测得的差峰值强度的比率计算出的720°以上的b轴取向度。

    Moldability modifier for polypropylene resin and polypropylene resin composition containing the same
    4.
    发明授权
    Moldability modifier for polypropylene resin and polypropylene resin composition containing the same 有权
    聚丙烯树脂的模塑性改性剂和含有它的聚丙烯树脂组合物

    公开(公告)号:US07064160B2

    公开(公告)日:2006-06-20

    申请号:US10416182

    申请日:2001-11-08

    摘要: The invention provides a polypropylene based resin composition, which has good moldability on injection molding and which is excellent in its flow mark appearance as well as weld appearance on molding, and suitable for injection-molded articles such as exterior parts of automobiles, and also provides a moldability modifier used for the composition.The invention is a moldability modifier for a polypropylene based resin, which comprises at least one of a propylene homopolymer and a propylene random polymer having die swell ratio of 1.5 to 2.5 and ratio (Q value: Mw/Mn) of 7 to 13 of the weight average molecular weight (Mw) to the number average molecular weight (Mn) measured by gel permeation chromatography (GPC). The moldability modifier is mixed with a propylene-ethylene block copolymer, an ethylenic or styrenic elastomer, an inorganic filler, etc. to prepare a polypropylene based resin composition.

    摘要翻译: 本发明提供了一种聚丙烯类树脂组合物,其在注射成型时具有良好的成型性,并且其流畅痕迹外观以及成型时的焊接外观优异,并且适用于汽车外部部件等注射成型制品,并且还提供 用于组合物的成型性改性剂。 本发明是用于聚丙烯基树脂的成型性改性剂,其包含丙烯均聚物和丙烯无规聚合物中的至少一种,其具有1.5至2.5的模头膨胀比和7至13的比例(Q值:Mw / Mn) 通过凝胶渗透色谱法(GPC)测定的数均分子量(Mn)的重均分子量(Mw)。 将成型性改性剂与丙烯 - 乙烯嵌段共聚物,烯属或苯乙烯系弹性体,无机填料等混合,制备聚丙烯系树脂组合物。

    Polypropylene-based resin composition of excellent moldability and giving molded product of excellent appearance
    5.
    发明授权
    Polypropylene-based resin composition of excellent moldability and giving molded product of excellent appearance 有权
    聚丙烯系树脂组合物,成型性优异,外观美观

    公开(公告)号:US06608130B1

    公开(公告)日:2003-08-19

    申请号:US09561929

    申请日:2000-05-01

    IPC分类号: C08K334

    摘要: The present invention provides A polypropylene-based resin composition, comprising (A) 45 to 85 wt. % of a propylene/ethylene block copolymer, having a melt flow rate (MFR) of 100 g/10 min. or more for the propylene homopolymer portion and 50 to 200 g/10 min. for the total copolymer, (B) 0.5 to 20 wt. % of a propylene homopolymer having a weight-average molecular weight (Mw) of 10,000 to 110,000, (C) 5 to 35 wt. % of an ethylene/&agr;-olefin copolymer rubber and/or ethylene/&agr;-olefin/non-conjugate diene copolymer rubber, and/or hydrogenated block copolymer rubber, having an MFR of 0.1 to 20 g/10 min., and (D) 5 to 30 wt. % of talc having an average particle size of 10 &mgr;m or less, determined by the laser diffraction method.

    摘要翻译: 本发明提供一种聚丙烯类树脂组合物,其包含(A)45〜85重量% %的丙烯/乙烯嵌段共聚物,其熔体流动速率(MFR)为100g / 10分钟。 或更多的丙烯均聚物部分和50-200g / 10分钟。 对于总共聚物,(B)为0.5〜20wt。 %的重均分子量(Mw)为10,000〜110,000的丙烯均聚物,(C)5〜35重量% %的MFR为0.1〜20g / 10min的乙烯/α-烯烃共聚物橡胶和/或乙烯/α-烯烃/非共轭二烯共聚物橡胶和/或氢化嵌段共聚物橡胶,(D )5〜30重量% 通过激光衍射法测定平均粒径为10μm以下的滑石的%。