POLYACETAL COMPOSITION WITH IMPROVED TOUGHNESS

摘要

To provide a polyacetal composition with improved toughness, wear resistance, and flowability. The polyacetal composition contains 100 wt.% of polyacetal and 0.5-5 wt.% of a block copolymer, which has its central portion made of an amorphous polymer that forms an elastic domain at room temperature and which has polyethylene glycol chains with molecular weight of 2000 or higher at its two ends.