PROCESS FOR THE PREPARATION OF A COMPOSITION COMPRISING HETEROPHASIC PROPYLENE CO-POLYMER AND TALC
    2.
    发明申请
    PROCESS FOR THE PREPARATION OF A COMPOSITION COMPRISING HETEROPHASIC PROPYLENE CO-POLYMER AND TALC 审中-公开
    制备包含异源丙烯共聚物和TALC的组合物的方法

    公开(公告)号:US20150232643A1

    公开(公告)日:2015-08-20

    申请号:US14429207

    申请日:2013-09-17

    Abstract: The invention relates to a Process for the preparation of a composition comprising (A) a heterophasic propylene copolymer, (B) talc and (C) a phenolic antioxidant and/or a processing stabilizer, wherein the heterophasic propylene copolymer consists of (a) a propylene-based matrix, wherein the propylene-based matrix consists of a propylene homopolymer and/or a propylene-α-olefin copolymer consisting of at least 70 wt % of propylene and up to 30 wt % of ethylene, based on the total weight of the propylene-based matrix, wherein the propylene-based matrix is present in an amount of 60 to 95 wt % based on the total heterophasic propylene copolymer and (b) a dispersed ethylene-α-olefin copolymer, wherein the dispersed ethylene-α-olefin copolymer is present in an amount of 40 to 5 wt % based on the total heterophasic propylene copolymer and wherein the sum of the total amount of propylene-based matrix and total amount of the dispersed ethylene-α-olefin copolymer in the heterophasic propylene copolymer is 100 wt %, wherein at least part of the talc is surface-modified and wherein the amount of talc in the composition is from about 0.5 to at most 5 wt % based on the heterophasic propylene copolymer, comprising the step of melt-mixing component (A), component (B) and component (C).

    Abstract translation: 本发明涉及一种组合物的制备方法,其包含(A)多相丙烯共聚物,(B)滑石和(C)酚类抗氧化剂和/或加工稳定剂,其中所述多相丙烯共聚物由(a) 基于丙烯的基质,其中基于丙烯均聚物和/或由至少70重量%的丙烯和至多30重量%的乙烯组成的丙烯-α-烯烃共聚物,基于丙烯基基体, 基于丙烯的基质,其中基于总多相丙烯共聚物的丙烯类基质的存在量为60至95重量%,和(b)分散的乙烯-α-烯烃共聚物,其中分散的乙烯-α-烯烃共聚物 烯烃共聚物的存在量相对于总多相丙烯共聚物为40〜5重量%,其中丙烯类基质的总量和分散的乙烯-α-烯烃共聚物在异相丙基中的总量之和 烯共聚物是100重量%,其中至少部分滑石被表面改性,并且其中基于多相丙烯共聚物,组合物中滑石的量为约0.5至至多5重量%,包括熔融 - 混合组分(A),组分(B)和组分(C)。

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