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    • 3. 发明申请
    • THERMOPLASTIC POLYMER COMPOSITION, SHEET OR FILM, AND MULTI-LAYERED FILM
    • 热塑性聚合物组合物,薄片或薄膜和多层薄膜
    • US20150368456A1
    • 2015-12-24
    • US14765893
    • 2014-03-04
    • KURARAY CO., LTD.
    • Yosuke AKAHORIDaisuke KONISHIHiromichi NAKATA
    • C08L53/02C08J5/18C08L33/12
    • C08L53/02B32B27/06B32B27/20B32B27/308B32B2307/412B32B2307/554B32B2307/584C08J5/18C08J2325/10C08J2333/12C08J2353/02C08J2425/10C08J2433/12C08J2453/02C08K5/0016C08L33/06C08L33/12C08L2201/10C08L2203/16C08L2207/04
    • 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.
    • 本发明提供一种热塑性聚合物组合物,其在模塑加工性,柔软性,橡胶弹性,耐擦伤性,耐磨性,透明性,易于涂覆以及当成型为片材或薄膜时的机械性能,使用该热塑性聚合物组合物制备的片材或薄膜, 和多层膜。 热塑性聚合物组合物包括(I)数均分子量为30,000〜200,000的嵌段共聚物或其氢化产物,其具有主要由α-甲基苯乙烯单元和聚合物嵌段(B)组成的聚合物嵌段(A) 主要由共轭二烯化合物单元或异丁烯单元组成,(II)丙烯酸类聚合物,和(III)如权利要求1所述的满足式(1)和(2)的比例的软化剂,并具有海 其中组分(II)以包含组分(I)的连续相中的颗粒形式分散,其中组分(II)的分散颗粒的平均分散粒径为200nm以下 ,35质量%以上的分散粒子的分散粒径小于60nm。