POLYESTER RESIN COMPOSITION BY USING TITANIUM CATALYST COMPOUNT AND METHOD OF MANUFACTURING THE SAME

文件类型：PDF文档
文件大小：315K
PURPOSE : A polyester resin composition is provided to improve yellowing phenomenon, to provide optimized manufacturing method, and maximize energy reduction effect at manufacturing a preform and a container. CONSTITUTION : A polyester resin composition comprises 15-150 ppm of titanium, 1-20 ppm of magnesium, 5-100 ppm of phosphorus, 10-40 ppm of cobalt. The polyester resin composition additionally comprises 5-100 ppm of complexing agent and/or 0.01-0.05 ppm of a re-heating agent. The complexing agent is one or more selected from a group consisting of hydroxycarboxylic acid, alkanolamine, and aminocarboxylic acid. The re-heating agent is a mixture of ferric oxide, titanium and manganese. The manufacturing method of the polyester resin composition comprises a slurry mixing step, an esterification step, and a condensation polymerization step. COPYRIGHT KIPO 2012