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    • 4. 发明授权
    • Polyester resin composition
    • 聚酯树脂组合物
    • US07608666B2
    • 2009-10-27
    • US10555208
    • 2004-04-28
    • Hideo MatsuokaMitsushige HamaguchiToru Nishimura
    • Hideo MatsuokaMitsushige HamaguchiToru Nishimura
    • C08L23/00
    • C08L67/02C08L23/025C08L23/0815C08L67/03C08L81/04C08L101/06C08L2666/02
    • This invention is a polyester resin composition comprising 100 parts by weight of a resin composition consisting of 60 to 95 wt % of (a) a polyester resin and 5 to 40 wt % of (b) an olefin-based resin, and 0.5 to 30 parts by weight of (c) one or more resins selected from polyphenylene sulfide resins and liquid crystal resins, wherein said olefin-based resin (b) is composed of (b-1) a functional group-containing olefin copolymer having at least one kind of functional groups selected from carboxylic acid groups, carboxylic anhydride groups, carboxylic ester groups, metal carboxylate groups and epoxy groups and (b-2) an ethylene/α-olefin copolymer obtained by copolymerizing ethylene and an a-olefin with 3 to 20 carbon atoms; and the polyester resin (a) forms a continuous phase, while the olefin-based resin (b) is dispersed as particles with an average particle size of 0.01 to 2 μm in the composition. This invention provides a polyester resin composition having excellent flexibility and impact resistance in a low-temperature atmosphere, also having excellent flowability and chemicals resistance, and suitable for injection molding.
    • 本发明是一种聚酯树脂组合物,其包含100重量份由60至95重量%的(a)聚酯树脂和5至40重量%的(b)烯烃类树脂组成的树脂组合物和0.5至30重量份 (c)选自聚苯硫醚树脂和液晶树脂中的一种或多种树脂,其中所述烯烃类树脂(b)由(b-1)含有至少一种的含官能团的烯烃共聚物组成 选自羧酸基团,羧酸酐基团,羧酸酯基团,金属羧酸酯基团和环氧基团的官能团和(b-2)通过使乙烯和α-烯烃与3-20碳共聚而获得的乙烯/α-烯烃共聚物 原子 并且聚酯树脂(a)形成连续相,而烯烃类树脂(b)在组合物中作为平均粒径为0.01〜2μ​​m的颗粒分散。 本发明提供一种在低温气氛中具有优异的柔韧性和耐冲击性的聚酯树脂组合物,其流动性和耐化学性优异,适用于注射成型。