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    • 15. 发明申请
    • THERMOPLASTIC MOLDING COMPOUNDS WITH IMPROVED IMPACT RESISTANCE
    • 具有改善的冲击强度热塑性模塑材料
    • WO01083574A1
    • 2001-11-08
    • PCT/EP2001/004861
    • 2001-04-30
    • C08F265/04C08F279/02C08F279/04C08F291/02C08L25/12C08L51/04C08L55/02
    • C08L25/12C08F265/04C08F279/02C08F279/04C08F291/02C08L51/04C08L55/02C08F2/22C08L2666/24C08L2666/02
    • The invention relates to a graft copolymer comprising a1: 10 to 90 wt.- % of a particulate graft base A1 from a particulate emulsion polymer having a glass transition temperature of below 0 DEG C produced from a11: 70 to 100 wt.- % butadiene or at least one C1-8 alkyl ester of acrylic acid or mixtures thereof as the component A11, a12: 0 to 20 wt.- % of at least one polyfunctional cross-linking monomer as the component A12, a13: 0 to 30 wt.- % of further copolymerizable monomers as the component A13, totaling 100 wt.- %, a2: 10 to 90 wt.- % of a graft layer A2 from the monomers, based on A2, a21: 60 to 100 wt.- % of at least one vinyl aromatic monomer, one (meth)acrylic acid ester or mixtures thereof, as the component A21, and a22: 0 to 40 wt.- % of at least one ethylenically unsaturated monomer as the component A22. The inventive graft polymer has an average particle size of from 130 to 500 nm and a polymodal particle size distribution in which in every particle size interval having a width of 50 nm less than 40 wt.- % of the particles are present.
    • a1的接枝共聚物:10至90重量的颗粒的乳液聚合物与来自11的低于0℃的玻璃化转变温度的粒状接枝基A1的%:丁二烯70〜200重量%,或丙烯酸中的至少一种的C 1-8烷基酯 或它们的混合物作为组分A11,一个12:0〜20重量%的至少一种多官能交联单体作为组分A12,A13的%:0至30重量进一步共聚的单体作为组分A13,100重量%的总量的% 示出2:接枝A2包含单体,基于A2的10〜90重量%,A21:60〜100重量%的至少一种乙烯基芳族单体,(甲基)丙烯酸酯或其混合物,作为组分% A21和22:至少一种烯属不饱和单体作为组分A22的0至40重量%,具有130-500纳米的平均粒径,并且具有在i一个多峰粒度分布 的n为50nm小于40重量%的颗粒存在于所述宽度的各粒径的间隔。
    • 20. 发明申请
    • POLYMER COMPOSITION
    • 聚合物组合物
    • WO99012986A1
    • 1999-03-18
    • PCT/GB1998/002703
    • 1998-09-08
    • C08L51/00C08F257/00C08F265/06C08F279/02C08F291/02
    • C08F279/02C08F265/06C08F291/02
    • A polymer composition, a process for its preparation and a moulded article formed from the polymer composition are claimed. The polymer composition comprises (a) a base polymer which is a poly(alkyl(meth)acrylate); and (b) a rubber toughening agent selected from the group consisting of (i) copolymers of (alkyl) acrylate rubbers (ii) copolymers of vinyl aromatic monomers with (alkyl) acrylates (iii) copolymers of vinyl aromatic monomers with conjugated diolefins (iv) copolymers of vinyl aromatic monomers with monoethylenically unsaturated monomers wherein the rubber toughening agent is present in the polymer composition as discrete islands substantially surrounded by the base polymer and in which islands are sub-islands of the base polymer. The polymer composition has improved impact resistance compared to that of the base polymer and has a unique morphology.
    • 一种聚合物组合物,其制备方法和由该聚合物组合物形成的模塑制品。 聚合物组合物包含(a)作为聚((甲基)丙烯酸烷基酯)的基础聚合物; 和(b)选自(i)(烷基)丙烯酸酯橡胶的共聚物的橡胶增韧剂(ii)乙烯基芳族单体与(烷基)丙烯酸酯的共聚物(iii)乙烯基芳族单体与共轭二烯烃的共聚物(iv) )乙烯基芳族单体与单烯属不饱和单体的共聚物,其中橡胶增韧剂作为离散的岛存在于聚合物组合物中,其基本上被基础聚合物包围,其中岛是基础聚合物的亚岛。 聚合物组合物与基础聚合物相比具有改善的耐冲击性,并且具有独特的形态。