Patent ID: 6486243
Filing Date: 2002-11-26
Classification: C08G,C08K

Abstract:
A light-colored thermoplastic molding composition comprising the reaction product of A, B and C whereA) is at least one polyol having on average 1.8 to 3.0 Zerewitinoff-active hydrogen atoms and a number average molecular weight of 450 to 10,000, and B) is at least one organic diisocyanate and C) is at least one polyol having on average 1.8 to 3.0 Zerewitinoff-active hydrogen atoms and a number average molecular weight of 60 to 400, wherein the ratio NCO/OH of A), B) and C) is between 0.85 and 1.2 to obtain a polyurethane elastomer, and 0 to 20% of an auxiliary substance or additive (D), and 0.001 to 1%, of one or more color stabilizers (E) selected from the group consisting of pentaerythritol diphosphites corresponding to the formula (I) â€ƒwherein R is C6 to C30-alkyl and Ph denotes phenyl, said percents, both occurrences, being in relation to the weight of the elastomer.