| abstract |
(57) [Summary] [PROBLEMS] To provide excellent light embrittlement prevention performance and copper yellowing prevention performance, maintain excellent light resistance, and improve the resistance to copper or copper ions during washing and processing after wearing. Having the ability to prevent discoloration or coloring to yellow by contact. A polyurethane composition containing a benzotriazole-based ultraviolet absorber, wherein the polyurethane composition contains a metal deactivator. |