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    Impact modifier for thermoplastic polyolefins
    1.
    发明授权
    Impact modifier for thermoplastic polyolefins 失效
    热塑性聚烯烃的抗冲改性剂

    公开(公告)号：US06391977B1

    公开(公告)日：2002-05-21

    申请号：US09097300

    申请日：1998-06-12

    申请人： Thomas Chen-Chi Yu ,  Peter James Kay ,  Trazollah Ouhadi

    发明人： Thomas Chen-Chi Yu ,  Peter James Kay ,  Trazollah Ouhadi

    IPC分类号： C08L2300

    CPC分类号： C08L23/10 ,  C08L23/0815 ,  C08L23/16 ,  C08L2314/06 ,  C08L2666/04

    摘要： The invention relates to a composition of a blend of an ethylene/propylene random copolymer and a low to very low density ethylene/C4 to C20-&agr;-olefin random copolymer and its use as an impact modifier for polyolefin compositions. The invention further relates to polyolefin compositions, particularly polypropylene compositions, comprising said impact modifier composition.

    摘要翻译： 本发明涉及乙烯/丙烯无规共聚物和低至极低密度乙烯/ C4至C20-α-烯烃无规共聚物的共混物的组合物及其作为聚烯烃组合物的抗冲改性剂的用途。 本发明还涉及聚烯烃组合物，特别是包含所述抗冲改性剂组合物的聚丙烯组合物。

    Low modulus thermoplastic olefin compositions
    4.
    发明授权
    Low modulus thermoplastic olefin compositions 失效
    低模量热塑性烯烃组合物

    公开(公告)号：US06207754B1

    公开(公告)日：2001-03-27

    申请号：US08864954

    申请日：1997-05-29

    申请人： Thomas Chen-Chi Yu

    发明人： Thomas Chen-Chi Yu

    IPC分类号： C08F1002

    CPC分类号： C08L23/10 ,  C08L23/0815 ,  C08L23/16 ,  Y10T428/31938 ,  C08L2666/04

    摘要： This invention relates to thermoplastic olefin compositions of a low modulus which are suitable for fabrication into flexible skins and liners for applications which heretofore have been serviced by skins and liners produced essentially only from plasticized polyvinyl chloride resin compositions. TPO compositions of this invention comprise an impact modified polypropylene resin and a “plastomer” resin intimately blended in proportions with respect of one to another to provide a blend composition having a 1% secant modulus of less than 40,000 psi, and preferably less than 30,000 psi. Optionally, and preferably, the blend also comprises as a discrete component apart from the impact modified polypropylene an olefin copolymer elastomer or a cross-linked elastomer concentrate. Optionally the blend may contain other polyolefin components to alter its stiffness in desirable ways. In addition to the olefin based polymer components, the blend may further comprise, and preferably does comprise, a coupling agent and activator compound which, during melt compounding of the blend components causes the plastomer to extend to its dimer form and, when a discrete OCE component is present to couple the plastomer thereto.

    摘要翻译： 本发明涉及低模量的热塑性烯烃组合物，其适于制造用于迄今为止仅由增塑的聚氯乙烯树脂组合物生产的表皮和衬里所提供的应用的柔性表皮和衬里。 本发明的TPO组合物包含冲击改性的聚丙烯树脂和“塑性体”树脂，其按相对于彼此的比例密切混合，以提供具有小于40,000psi，优选小于30,000psi的1％割线模量的共混组合物 。 并且优选地，并且优选地，共混物还包括作为分散组分，除了抗冲改性聚丙烯之外，烯烃共聚物弹性体或交联的弹性体浓缩物。 任选地，共混物可以含有其它聚烯烃组分以以期望的方式改变其刚度。 除了基于烯烃的聚合物组分之外，共混物可以进一步包含并且优选地包含偶联剂和活化剂化合物，其在共混组分的熔融混合期间使塑性体延伸至其二聚体形式，并且当离散的OCE 存在组分以将塑性体连接到其上。