申请人:GE PLASTICS JAPAN LIMITED
公开号:EP0552546A1
公开(公告)日:1993-07-28
Polybutylene terephthalate resin compositions comprising :
(A) 60-99% of polybutylene terephthalate having a number-average molecular weight (Mn) larger than 40,000 but less than 60,000, and a weight-average molecular weight (Mw) of more than 130,000 but less than 160,000, and
(B) 1-40 wt% of polybutylene terephthalate having a number-average molecular weight (Mn) larger than 21,000 but less than 27,000, and a weight-average molecular weight (Mw) larger than 40,000 but less than 65,000 have a good resistance to repeated fatigue in the molded product, a good fluidity in the molten state and a good moldability.
聚对苯二甲酸丁二醇酯树脂组合物,包括 :
(A) 60-99% 的聚对苯二甲酸丁二醇酯,其数均分子量 (Mn) 大于 40,000 但小于 60,000,且重均分子量 (Mw) 大于 130,000 但小于 160,000,以及
(B) 1-40 wt%的聚对苯二甲酸丁二醇酯,其数均分子量 (Mn) 大于 21,000 但小于 27,000,重量平均分子量 (Mw) 大于 40,000 但小于 65,000。