| abstract |
PURPOSE: A stabilized polyester composition comprising a polyester consisting of 1, 4-butanediol as a main glycol component, and potassium iodide. n CONSTITUTION: A polyester, e.g. polybutylene terephthalate or polybutylene-2,6- naphthalene dicarboxylate, made from 1,4-butanediol as a glycol component or a polyester prepared by copolymerizing about 30 wt.% or less of a third component is incorporated with about 0.03W1 wt.%, preferably 0.05W0.5 wt.% of potassium iodide, preferably during the polymerization stage of the polyester or pelletizing stage after the polymerization. n COPYRIGHT: (C)1979,JPO&Japio |