| 摘要 |
The present invention relates to a process for producing polyester, which method comprises reacting a dicarboxylic acid and a diol in the presence of a trizazine derivative, such as melamine-cyanuric acid (MeCy). The invention also relates to process for producing a polyester, which method comprises reacting a dicarboxylic acid and a diol in the presence of a metal sulfate. |
