COLORED RESIN COMPOSITION RESISTANT TO CHLORINE-CONTAINING WATER AND PIPE FOR CITY WATER SUPPLY

摘要

PPROBLEM TO BE SOLVED: To provide a colored resin molded article capable of minimizing the oxidative deterioration of the outermost layer of the molded article even by exposing to outdoor environment for a long period before use and highly resistant to chlorine-containing water in use by adding a metal deactivation agent to a polyolefin resin. PSOLUTION: The colored resin composition resistant to chlorine-containing water contains (A) 100 pts. wt. of a polyolefin resin, (B) 0.005-50 pts. wt. of a pigment and (C) 0.005-20 pts. wt. of 2',3-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]propionohydrazide as a metal deactivation agent. The pipe for city water supply is produced by molding the resin composition. PCOPYRIGHT: (C)2005,JPO&NCIPI