POLYACETAL MOLDING MATERIALS HAVING HIGH IMPACT RESISTANCE, A PROCESS FOR THEIR PREPARATION, AND THEIR USE

摘要

Polyacetal molding materials having high impact resistance, a process for their preparation, and their use A moulding composition based on linear polyoxymethylene copolymers and customaryadditives with a melt index MFI (2,16 kg, 190.degree.C) of ?0,8, preferably ?0,5 and especially ?0,2 g/10 min has an extraordinary high toughness, which eliminates an addition of elastomer modifiers. In its preparation Lewis acids or protonic acids are used as initiators.