This invention provides a process for producing a crystallized polyester resin molding. The process includes melting and injecting the below-described compound (a) or (b) into a mold and holding the same in the mold, and then conducting cooling to crystallize a polyester resin of a resulting molding without using an inorganic nucleating agent: (a) a compound of a crystallization-inducing crosslinked polyester resin A, in at least a portion of which crosslinked points have been formed with a crosslink forming agent, and a non-crosslinked polyester resin C; or (b) a compound of a compound (a crystallization-inducing master batch M), which comprises the resin A and a non-crosslinked polyester resin B and abundantly contains the resin A, and the non-crosslinked polyester resin C. According to the present invention, a crystallized polyester resin molding free from impairment of transparency can be produced without using an inorganic nucleating agent that would produce haze in the molding.
本发明提供了一种生产结晶聚酯
树脂模塑件的工艺。该工艺包括将下述化合物(a)或(b)熔化并注入模具中,并将其保持在模具中,然后进行冷却,使所得模塑的聚酯
树脂结晶,而无需使用无机成核剂:(a) 由至少一部分已用交联形成剂形成交联点的诱导结晶交联聚酯
树脂 A 和非交联聚酯
树脂 C 组成的化合物;或 (b) 由
树脂 A 和非交联聚酯
树脂 B 组成并大量含有
树脂 A 和非交联聚酯
树脂 C 的化合物(诱导结晶母料 M)。根据本发明,无需使用会在成型中产生雾度的无机成核剂,即可生产出透明性不受影响的结晶聚酯
树脂成型品。