THERMOPLASTIC BLOCK COPOLYESTERS, A PROCESS FOR THEIR PRODUCTION AND THEIR USE FOR THE PRODUCTION OF MOULDINGS

摘要

Thermoplastic block copolyesters, a process for their production and their use for the prdouction of mouldings ========================================================== Block copolyesters based on polyalkylene terephthalates which contain polyene blocks show an extremely low deformation even when they are processed into thin articles. They still have a crystallinity which is decreased by less than the ratio corresponding to the polyene portion. Le A 20 726