| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultraviolet light absorber for a thermoplastic polymer, itself excellent in preservability and heat resistance, inherently having transparency and, even when added to or kneaded with polyethylene terephthalate or polycarbonate each requiring a high kneading temperature and a high molding temperature, providing a inherently transparent molding product. SOLUTION: This ultraviolet light absorber for a thermoplastic polymer is obtained by compounding, as a substantial component, a specified cyclic imino ester compound having 1×10<-1> -1×10<+3> ppm chloride ion concentration.
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