Method for producing oxymethylene copolymer resin composition, and oxymethylene copolymer resin composition

A method for producing an oxymethylene copolymer resin composition, comprising:

• adding to an oxymethylene copolymer (A), an Mn micromole of an amine-substituted triazine compound (B) per gram of the oxymethylene copolymer (A), an Mc micromole of a choline hydroxide (C) per gram of the oxymethylene copolymer (A), and 0.1 to 1.0 parts by weight of an antioxidant (D) with respect to 100 parts by weight of the oxymethylene copolymer (A), and melt kneading a mixture of the oxymethylene copolymer (A), amine-substituted triazine compound (B), the choline hydroxide (C), and the antioxidant (D), wherein
• Mn (μmol/g-POM) and Mc (μmol/g-POM) satisfy:
• 6.5<(Mn+Mc×8)<25,
• Mn is from 1.0 to 2.0, and
• Mc is from 0.8 to 2.8:
• the amine-substituted triazine compound (B) is melamine;
• and
• the antioxidant (D) is triethylene glycol bis[3-(34-butyl-5-methyl-4-hydroxyphenyl)propionate].