| 摘要 |
The invention relates to a composition of a thermoplastic segmented polyetherester copolymer with a strongly improved thermooxidative stability, consisting of1) a segmented polyetherester copolymer derived from terephthalic acid or naphthalene dicarboxylic acid, or an ester thereof, alkylene diol, polypropylene oxide glycol, which contains ethylene oxide end groups, 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.3) optionally other additives.The composition is particularly suitable for application at high ambient temperatures and for applications in which the product obtained from the composition must over a long period be able to withstand deformations of at least 50% without fracturing and is in contact with metal. |
