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    • 7. 发明授权
    • Thermoplastic polyester compositions having improved impact properties
    • 热塑性聚酯组合物具有改进的冲击性能
    • US06809151B1
    • 2004-10-26
    • US09718426
    • 2000-11-24
    • Christophe LacroixAlain Bouilloux
    • Christophe LacroixAlain Bouilloux
    • C08G6348
    • C08L67/02C08L2666/02
    • The present invention relates to the thermoplastic polyesters, which comprise, by weight (i) a thermoplastic polyester; (ii) an impact modifier comprising: (a) a core-shelf copolymer (A); (b) an ethylene copolymer (B) chosen from ethylene-unsaturated carboxylic acid anhydride copolymers (B1), ethylene-saturated epoxide copolymers (B2) and blends thereof; (iii) the (B)/(A) ratio being between 90/10 and 25/75 for proportions of impact modifier between 2 and 40% in 98 to 60% of polyester, respectively; (iv) the (B)/(A) ratio being between 25/75 and 10/90 for proportions of impact modifier between 18 and 40% in 82 to 60% of polyester, respectively. It is particularly useful for PET and PBT.
    • 本发明涉及热塑性聚酯,其包含(i)热塑性聚酯;(ii)抗冲改性剂,其包含:(a)核 - 架共聚物(A);(b)乙烯共聚物(B) 选自乙烯 - 不饱和羧酸酐共聚物(B1),乙烯 - 饱和环氧化物共聚物(B2)及其共混物;(iii)(B)/(A)的比例为90/10至25/75, 改性剂在98至60%的聚酯中分别为2至40%;(iv)(B)/(A)比为25/75至10/90,冲击改性剂的比例为82至82% 60%的聚酯。 它对PET和PBT特别有用。