| 摘要 |
A polyester copolymer having an aromatic amine incorporated in the main chain, which has improved thermal stability as well as dynamic property, and a process for the production of the polyester copolymer, at lower production cost. The polyester copolymer comprises an aromatic dicarboxylic acid, diol and at least one compound selected from aromatic compounds having amino group, represented by the following general formula (I), H2N - X - COOR (I) wherein X is an aromatic ring-containing group and R is a hydrogen atom or a hydrocarbon group selected from alkyl groups and cycloalkyl groups. <IMAGE> |
