The present invention provides a polyester resin component having crystallization improved and including a cyclic compound shown by a below-described formula and polyester capable of having a crystal structure.
(In the formula, a ring A and a ring B respectively represent benzene rings, and hydrogen bonded to the benzene rings may optionally be substituted with other groups. Y represents -CONH- or -NHCO-. X represents a heterocyclic group or a condensed heterocyclic group including one or more NH or CO respectively.)
本发明提供了一种聚酯
树脂组分,其结晶性有所改善,包括如下式所示的环状化合物和具有晶体结构的聚酯。
(式中,环 A 和环 B 分别代表苯环,与苯环结合的氢可选择被其他基团取代。Y 代表-CONH-或-NHCO-。X 代表杂环基团或分别包括一个或多个 NH 或 CO 的缩合杂环基团)。