Patent ID: 6646035
Filing Date: 2003-11-11
Classification: C08K

Abstract:
A stabilizer composition for thermoplastic polymers comprisinga) a phenolic antioxidant bis-[3,3-bis-(4â€²-hydroxy-3â€²-tert.butyl-phenyl)-butanoic acid]-glycolester (I), and b) at least one phenolic antioxidant selected from the compounds (VII) or (VIII) tetrakismethylene(3,5-di-tert.butyl-4-hydroxyphenyl)-hydrocinnamate (VII) or octadecyl-3-(3,5-di-tert.butyl-4-hydroxyphenyl)-propionate (VIII), wherein the weight ratio of component a) to component b) is from 1:10 to 10:1.