RESIN COMPOSITION

摘要

A polyester resin improved in crystallizability, which comprises a cyclic compound represented by the general formula: A1 - B - A2 [wherein A1 and A2 are each independently a group represented by the formula: [1] P is an optionally substituted benzene ring; and B is an optionally substituted divalent hydrocarbon group] and a polyester capable of taking a crystalline structure.