Patent ID: 11891504
Assignee: POLYPLASTICS CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A polyacetal resin composition, comprising:
a polyacetal copolymer (A) in an amount of 100 parts by mass, the polyacetal copolymer resin having a hemiformal terminal group amount of 0.8 mmol/kg or less;
an antioxidant (B) in an amount of 0.5 to 3.0 parts by mass;
at least one of zinc oxide or magnesium oxide (C) having an average particle diameter of 5 μm or less in an amount of 3.0 parts by mass or more and 12 parts by mass or less;
carbon black (D) having a BET specific surface area of 300 to 400 m2/g in an amount of 5.0 to 16 parts by mass; and
polyalkylene glycol (E) in an amount of 0.5 to 3.0 parts by mass.