Polyacetal resin composition, composite molding using the same, and method for producing the same

A method of producing a composite molding having a polyacetal resin molding comprising a polyacetal resin, a polyethylene resin molding containing a polyethylene resin, and an intermediate layer provided between the polyacetal resin molding and the polyethylene resin molding, wherein the intermediate layer consists of a polyacetal resin composition consisting essentially of a polyacetal resin (A) and a polyethylene resin (B), and wherein the blending proportion of the polyacetal resin (A) occupying in the total mass of the polyacetal resin (A) and the polyethylene resin (B) is 10 to 90 mass %,

• a melt flow rate of the polyacetal resin (A) measured at a condition of 190° C. and 2.16 kg load is 30 g/10 minutes or less, and the polyethylene resin (B) contains a modified polyethylene resin and a modification rate is 0.01 mass % or more based on 100 mass % of the total mass of the polyethylene resin (B), and a melt flow rate of the polyethylene resin (B) measured at a condition of 190° C. and 2.16 kg load is 2.5 g/10 minutes or less, the method comprising:
• a first process of preparing the intermediate layer,
• a second process of preparing the polyacetal resin molding and
• a third process of preparing the polyethylene resin molding,
• and produces the composite molding through the first process, the second process and the third process.