| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyester resin composition suppressing a thermal deterioration problem such as yellow coloring, a decrease in molecular weight, generation of a gelled component and the like during heat processing such as manufacturing or molding the polyester resin containing a diol unit having a cyclic acetal skeleton. <P>SOLUTION: The thermal deterioration such as yellow coloring, the decrease of the molecular weight, the generation of the gelled component and the like during the heat processing is suppressed by compounding 0.05 to 1 pt.wt. of a specific antioxidant component with the polyester resin containing a dicarboxylic acid unit and a diol unit, the diol unit containing 1 to 60 mol% of the diol unit having the cyclic acetal skeleton in the diol unit. <P>COPYRIGHT: (C)2013,JPO&INPIT |
