POLYOXYMETHYLENE COPOLYMER AND MOLDED ARTICLE THEREOF

摘要

A polyoxymethylene copolymer obtained by copolymerizing trioxane with 1,3-dioxolane in a molar ratio of 100/(8-20), characterized by having the following properties: (i) the crystallization time at 143 DEG C is 10 to 2,000 seconds; (ii) the number of cycles in a folding endurance test is 30 to 1,000; and (iii) the thermal stability in residence is 40 minutes or longer. Also provided is a molded article formed from the copolymer. The polyoxymethylene copolymer is excellent in folding endurance and thermal stability and has satisfactory moldability.