THERMOPLASTIC COMPOSITION
    2.
    发明申请

    公开(公告)号:WO2020154060A1

    公开(公告)日:2020-07-30

    申请号:PCT/US2019/067801

    申请日:2019-12-20

    IPC分类号: C08K5/098 C08K5/52

    摘要: An extrusion composition containing at least one resin selected from the group consisting of polypropylene homopolymers, polypropylene random copolymers, and polypropylene impact copolymers. The extrusion composition also contains at least one phosphate ester-based nucleating agent provided in the composition at a use level of between about 0.01 and 0.15 parts by weight, in relation to 100 parts by weight of the resin and at least one co-additive selected from the group consisting of poly(ethylene glycol) and copolymers containing segments of ethylene oxide, wherein the co-additive has a number average molecular weight of about 300 or more, and wherein the use level of the co-additive is about 0.005 parts by weight or more, in relation to 100 parts by weight of the resin.

    METHOD FOR MAKING HETEROPHASIC POLYMER COMPOSITIONS

    公开(公告)号:WO2020176341A1

    公开(公告)日:2020-09-03

    申请号:PCT/US2020/019219

    申请日:2020-02-21

    IPC分类号: C08K5/01 C08K5/14 C08L23/16

    摘要: A heterophasic polymer composition comprises a propylene polymer phase, an ethylene polymer phase, a compatibilizing agent comprising a fulvene moiety, and a nucleating agent. A method for modifying a heterophasic polymer composition comprises the steps of providing a compatibilizing agent, providing a nucleating agent, providing a heterophasic polymer composition comprising a propylene polymer phase and an ethylene polymer phase, mixing the compatibilizing agent, the nucleating agent, and the heterophasic polymer composition, and generating free radicals in the propylene phase and the ethylene phase. At least a portion of the compatibilizing agent then reacts with free radicals in both the propylene polymer phase and the ethylene polymer phase to form a bond with a propylene polymer in the propylene polymer phase and a bond with an ethylene polymer in the ethylene polymer phase.