IMPROVEMENT OF INITIAL DISCOLORATION OF CHLORINE-CONTAINING RESIN COMPOSITION

摘要

PURPOSE:Ditrimethylolpropane is added to a chlorine-containing resin composition to improve the initial discoloration of the composition on thermoforming. CONSTITUTION:To 100pts.wt. of the composition consisiting of chlorine-containing resin such as vinyl chloride resin and at least one or metal compounds such as calcium oxide, are added 0.1-10pts. of ditrimethylolpropane of the formula and they are heat kneaded.