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    Propylene Polymer Composition
    6.
    发明申请
    Propylene Polymer Composition 有权
    丙烯聚合物组合物

    公开(公告)号：US20090082509A1

    公开(公告)日：2009-03-26

    申请号：US11988753

    申请日：2006-06-13

    申请人： Christelle Grein ,  Markus Gahleitner

    发明人： Christelle Grein ,  Markus Gahleitner

    IPC分类号： C08K3/26 ,  C08L23/16

    CPC分类号： C08K5/0083 ,  C08K3/013 ,  C08L23/10

    摘要： A propylene polymer composition having a high impact strength and a high stiffness for the manufacture of parts having an excellent surface quality comprising A) 70 to 98 wt.-% of a heterophasic propylene copolymer with ethylene or an alpha-olefin with 4 to 12 carbon atoms, the propylene copolymer, which contains more than 60 wt.-% propylene, having a melt flow rate (MFR2) of 0.5 to 50 g/10 min and a ratio between elastomer molecular weight and total molecular weight expressed as Mw/Mw(XCS) of more than 0.8, Mw being the weight average molecular weight of the propylene copolymer and Mw(XCS) being the weight average molecular weight of the propylene copolymer which is soluble in xylene at +23° C., and the propylene copolymer further containing a portion of 5 to 35 wt.-% soluble in xylene at +23° C. (XCS content), B) 2 to 30 wt.-% of a mineral filler, C) 0.0001 to 1.0 wt.-% of a β-nucleating agent promoting the β-modification of the propylene copolymer, said composition having a content of β-modification of more than 50% determined by differential scanning calorimetry (DSC) and an impact strength at −20° C. which is at least 50% higher than the impact strength of the propylene copolymer (A).

    摘要翻译： 具有高冲击强度和高刚度的丙烯聚合物组合物，用于制造具有优异表面质量的部件，其包括A）70至98重量％的异构丙烯共聚物与乙烯或具有4至12个碳原子的α-烯烃 原子，丙烯共聚物，其含有大于60重量％的丙烯，其熔体流动速率（MFR 2）为0.5至50g / 10min，弹性体分子量与总分子量之间的比率表示为Mw / Mw（ XCS）大于0.8，Mw是丙烯共聚物的重均分子量，Mw（XCS）是在+ 23℃下可溶于二甲苯的丙烯共聚物的重均分子量，进一步的丙烯共聚物 含有5〜35重量％的可溶于+ 23℃二甲苯的部分（XCS含量），B）2〜30重量％的矿物填料，C）0.0001〜1.0重量％的 促进丙烯共聚物的β-改性的β-成核剂，所述组合物具有a 通过差示扫描量热法（DSC）测定的超过50％的β-改性含量和在-20℃下的冲击强度比丙烯共聚物（A）的冲击强度高至少50％。

    Propylene polymer composition
    7.
    发明授权
    Propylene polymer composition 有权
    丙烯聚合物组成

    公开(公告)号：US07786204B2

    公开(公告)日：2010-08-31

    申请号：US11988753

    申请日：2006-06-13

    申请人： Christelle Grein ,  Markus Gahleitner

    发明人： Christelle Grein ,  Markus Gahleitner

    IPC分类号： C08K3/26

    CPC分类号： C08K5/0083 ,  C08K3/013 ,  C08L23/10

    摘要： A propylene polymer composition having a high impact strength and a high stiffness for the manufacture of parts having an excellent surface quality comprising A) 70 to 98 wt.-% of a heterophasic propylene copolymer with ethylene or an alpha-olefin with 4 to 12 carbon atoms, the propylene copolymer, which contains more than 60 wt.-% propylene, having a melt flow rate (MFR2) of 0.5 to 50 g/10 min and a ratio between elastomer molecular weight and total molecular weight expressed as Mw/Mw(XCS) of more than 0.8, Mw being the weight average molecular weight of the propylene copolymer and Mw(XCS) being the weight average molecular weight of the propylene copolymer which is soluble in xylene at +23° C., and the propylene copolymer further containing a portion of 5 to 35 wt.-% soluble in xylene at +23° C. (XCS content), B) 2 to 30 wt.-% of a mineral filler, C) 0.0001 to 1.0 wt.-% of a β-nucleating agent promoting the β-modification of the propylene copolymer, said composition having a content of β-modification of more than 50% determined by differential scanning calorimetry (DSC) and an impact strength at −20° C. which is at least 50% higher than the impact strength of the propylene copolymer (A).

    摘要翻译： 具有高冲击强度和高刚度的丙烯聚合物组合物，用于制造具有优异表面质量的部件，其包括A）70-98重量％的异构丙烯共聚物与乙烯或具有4至12个碳原子的α-烯烃 原子，丙烯共聚物，其含有大于60重量％的丙烯，其熔体流动速率（MFR 2）为0.5至50g / 10min，弹性体分子量与总分子量之间的比率表示为Mw / Mw（ XCS）大于0.8，Mw是丙烯共聚物的重均分子量，Mw（XCS）是在+ 23℃下可溶于二甲苯的丙烯共聚物的重均分子量，进一步的丙烯共聚物 含有5〜35重量％的可溶于+ 23℃二甲苯的部分（XCS含量），B）2〜30重量％的矿物填料，C）0.0001〜1.0重量％的 促进丙烯共聚物的改性的成核剂，所述组合物具有 通过差示扫描量热法（DSC）测定的超过50％的含量和在-20℃下的冲击强度比丙烯共聚物（A）的冲击强度高至少50％。