| abstract |
The ketene imine compound represented by the following general formula (1) and the polyester resin composition containing the polyester have high hydrolysis resistance and inhibit sulfur coloring. At least one of R 11 , R 12 , R 21 and R 22 represents an alkyl group, an aryl group, an alkoxy group or an aryloxy group which may have a substituent, and R 15 and R 25 each represent an alkyl group, An alkoxy group or an aryloxy group, R 3 represents an alkyl group or an aryl group which may have a substituent, and a and b represent an integer of 0 to 3. |