THERMOPLASTIC POLYMER COMPOSITION, SHEET OR FILM, AND MULTI-LAYERED FILM
    14.
    发明公开
    THERMOPLASTIC POLYMER COMPOSITION, SHEET OR FILM, AND MULTI-LAYERED FILM 有权
    热塑性聚合物组合物,片或膜,以及多层膜

    公开(公告)号:EP2942370A1

    公开(公告)日:2015-11-11

    申请号:EP14759732.2

    申请日:2014-03-04

    申请人: Kuraray Co., Ltd.

    摘要: Provided are a thermoplastic polymer composition having good mold processability, flexibility, rubber elasticity, scratch resistance, abrasion resistance, transparency, ease of coating, and mechanical properties when formed into a sheet or film, a sheet or film produced using the thermoplastic polymer composition, and a multi-layered film. The thermoplastic polymer composition includes (I) a block copolymer having a number average molecular weight of 30,000 to 200,000, or a hydrogenated product thereof, which has a polymer block (A) mainly composed of α-methylstyrene units and a polymer block (B) mainly composed of conjugated diene compound units or isobutylene units, (II) an acryl-based polymer, and (III) a softening agent at a ratio satisfying the formulae (1) and (2) as described in claim 1, and has a sea-island structure in which the components (II) are dispersed in the form of particles in a continuous phase including the component (I), in which the average dispersed particle diameter of the dispersed particles of the components (II) is 200 nm or less, and 35% by mass or more of the dispersed particles have dispersed particle diameters of less than 60 nm.

    摘要翻译: 本发明提供一种热塑性聚合物组合物,其在形成片或膜时具有良好的成型加工性,柔韧性,橡胶弹性,耐刮擦性,耐磨性,透明性,易涂覆性和机械性能,使用该热塑性聚合物组合物制备的片或膜, 和多层膜。 该热塑性聚合物组合物包含:(I)数均分子量为30,000至200,000的嵌段共聚物或其氢化产物,其具有主要由α-甲基苯乙烯单元组成的聚合物嵌段(A)和聚合物嵌段(B) 主要由共轭二烯化合物单元或异丁烯单元构成,(II)丙烯酸类聚合物和(III)软化剂以满足如权利要求1所述的式(1)和(2)的比例组成,并且具有海 (II)的分散粒子的平均分散粒径为200nm以下的含有成分(I)的连续相中成分(II)以粒子状分散的岛状结构 ,35质量%以上的分散粒子的分散粒径小于60nm。