Patent ID: 6380290
Filing Date: 2002-04-30
Classification: C08K

Abstract:
Thermooxidatively stabilized, segmented polyester copolymer composition containing:1) a segmented polyester copolymer derived from terephthalic acid or naphthalene dicarboxylic acid or an ester thereof, an alkylene diol, polypropylene oxide glycol, which contains ethylene oxide end groups on the propylene oxide segments, and optionally a branching agent; 2) an effective amount of a stabilizer combination containing at least (2a) at least one thermooxidative stabilizer chosen from the group of phenolic antioxidants and (2b) at least one thermooxidative stabilizer chosen from the group of aromatic amines selected from the group consisting from 4,4â€³-di-cumyl-diphenylamine, N,Nâ€²-diphenyl-p-phenylene-diamine, 4,4â€²- di-octyl-diphenylamine, N,Nâ€²-di-sec-butyl-p-phenylene-diamine, N,Nâ€²-diphenylamine and poly-(2,2,4-trimethyl-1,2-dihydro-quinoline); 3) optionally other additives.