THERMOPLASTIC COMPOSITIONS FOR WIRE COATING APPLICATIONS

摘要

Thermoplastic compositions based on polybutylene terephthalate are provided which are useful in high temperature resistant wire coating applications. These compositions generally are four- component alloys containing a) 40-65 % by weight of poly (1,4-butylene terephthalate); b) 1-30 % by weight of a polymeric grafting agent which is an ethylene copolymer carrying reactive groups; c) 0-20 % by weight of an ethylene copolymer ionomer; d) at least on e component selected from the group of a copolyester urethane, a copolyether ester, a hydrogenated styrene/diene bloc k Copolymer optionally grafted with maleic anhydride, an adduct of maleic anhydride and a copolymer of ethylene or an acrylic-modifie d elastomer-based polymer.