A polyester resin which has a flame retardancy and excellent toughness-related properties such as elongation and impact resistance, while maintaining the excellent heat resistance of a crystalline polyester, is provided by the polycondensation of (a) 2,6-naphthalenedicarboxylic acid or an ester-forming derivative thereof, (b) 1,4-butanediol and (c) a halogenated ester-forming compound (c) are subjected as the feed monomers to polycondensation to prepare a flame-retardant polyester resin for injection molding having a halogen content of 10 to 20 wt. %.
一种聚酯
树脂,在保持结晶聚酯的优异耐热性的同时,还具有阻燃性和优异的韧性(如伸长率和抗冲击性),其缩聚过程为:(a) 2、将(a)2, 6-
萘二
甲酸或其酯化衍
生物、(b)
1,4-丁二醇和(c)卤代酯化化合物(c)作为进料单体进行缩聚,制备出一种用于注塑成型的阻燃性聚酯
树脂,其卤素含量为 10 至 20 wt.%.