| 摘要 |
PURPOSE: A preparation method of polyester is provided, which is characterized in that a mixture consisting of antimony triacetate, dibutylmalate(DBTM), paraboloid acid (p-TSA) is used as catalyst in the copolymerization of polyester(TPA method). CONSTITUTION: The catalyst comprises 1 mol of terephthalic acid, 1.0-1.5 mol of ethylene glycol, 50-150ppm of antimonitricacetate, 10-50 ppm of dibutylmalate, 20 ppm of p-TSA, and 3000 ppm of TiO2. |
