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    • 5. 发明授权
    • Methacrylic resin composition
    • 甲基丙烯酸树脂组合物
    • US07999032B2
    • 2011-08-16
    • US11994746
    • 2006-07-05
    • Kazuhito WadaKimihide NishimuraNorito Doi
    • Kazuhito WadaKimihide NishimuraNorito Doi
    • C04B35/634
    • C08J5/18B32B27/18B32B27/30C08F265/06C08J2351/00C08K5/3475C08L33/06C08L33/12C08L51/00C09D5/32Y10T428/254Y10T428/31909Y10T428/31928C08F220/14C08L2666/24C08L2666/04
    • An acrylic resin composition suitable for use as films excellent in transparency, weatherability, hardness, impact resistance, flex cracking resistance, and formability. The resin composition comprises an acrylic graft copolymer (A) including a rubbery acrylic ester polymer (A-a) and a methacrylic polymer (B) comprising 80 wt. % or more methyl methacrylate units, the acrylic resin composition having a specific value of reduced viscosity (0.2-0.8 dl/g), specific values of content (5-45 wt. %) and average particle diameter (50-200 nm) of the rubbery polymer (A-a), a specific relationship between the particle diameter and the crosslinking agent amount (0.02d≦w≦0.05d; d, average particle diameter (nm); w, amount of crosslinking agent (wt. %)), and a specific value of the degree of grafting (50-250%). The resin composition contains an ultraviolet absorber incorporated therein through copolymerization.
    • 适合用作透明性,耐候性,硬度,耐冲击性,抗开裂性和成型性优异的薄膜的丙烯酸树脂组合物。 树脂组合物包含丙烯酸接枝共聚物(A),其包含橡胶状丙烯酸酯聚合物(A-a)和甲基丙烯酸类聚合物(B),其包含80重量% %以上的甲基丙烯酸甲酯单元,丙烯酸树脂组合物的比浓粘度(0.2〜0.8dl / g),比重值(5-45重量%)和平均粒径(50〜200nm) 橡胶状聚合物(Aa),粒径与交联剂量的相关关系(0.02d≦̸ w≦̸ 0.05d; d,平均粒径(nm); w,交联剂量(重量%)) 和接枝度的具体值(50-250%)。 该树脂组合物含有通过共聚合结合在其中的紫外线吸收剂。
    • 6. 发明授权
    • Thermoplastic resin composition and interior or exterior parts for vehicle thereof
    • 热塑性树脂组合物及其车辆的内部或外部部件
    • US06277913B1
    • 2001-08-21
    • US09315812
    • 1999-05-21
    • Ikuhiro MishimaKazuhito Wada
    • Ikuhiro MishimaKazuhito Wada
    • C08L5108
    • C08L33/12C08F255/00C08F265/04C08F279/02C08F283/12C08L23/02C08L25/14C08L33/06C08L33/062C08L33/08C08L33/10C08L35/06C08L51/04C08L51/06C08L55/02C08L2666/02C08L2666/24C08L2666/06C08L2666/14C08L2666/04
    • There is provided a thermoplastic resin composition and interior or exterior parts for vehicle using thereof, which is excellent in flexibility, surface appearance, heat deformation property at heating and has low tackiness at a high temperature. The thermoplastic resin composition comprises 25 to 90 parts by weight of a (meth)acrylic ester copolymer (X), which is prepared by polymerizing 40 to 95% by weight of a (meth)acrylic ester, 0 to 40% by weight of a vinyl cyanide compound, not more than 60% by weight of an aromatic vinyl compound and 0 to 40% by weight of a monomer copolymerizable therewith, and has a glass transition temperature of not more than 20° C. and a gel content of not more than 50% by weight, 5 to 75 parts by weight of a copolymer (Y), which has a glass transition temperature or a melting point not less than 50° C., and 0 to 70 parts by weight of a graft copolymer (Z), which is prepared by polymerizing 5 to 95% by weight of a rubber polymer (A) and 5 to 95% by weight of a vinyl monomer (B), and wherein hardness thereof at 20° C. measured by the method of JIS K6301 is 30 to 100.
    • 提供一种热塑性树脂组合物及其使用的车辆内部或外部部件,其柔软性,表面外观,加热时的热变形性优异,并且在高温下具有低粘性。 热塑性树脂组合物包含25〜90重量份的(甲基)丙烯酸酯共聚物(X),其通过聚合40〜95重量%的(甲基)丙烯酸酯,0〜40重量%的 乙烯基氰化合物,不超过60重量%的芳族乙烯基化合物和0至40重量%的可与其共聚的单体,并且玻璃化转变温度不超过20℃,凝胶含量不超过 50重量%,5〜75重量份的玻璃化转变温度或熔点不低于50℃的共聚物(Y)和0〜70重量份的接枝共聚物(Z ),其通过使5〜95重量%的橡胶聚合物(A)和5〜95重量%的乙烯基单体(B)聚合而制备,并且其中在20℃下的硬度通过JIS K6301是30到100。