Patent ID: 8728582

Claim:
A primer, comprising: (A) from 50 to 90 mass % of a chlorinated polyolefin resin comprising a chlorine content of from 5 to 50 mass % and a weight average molecular weight of from 1,000 to 100,000, (B) from 45 to 5 mass % of a blocked polyisocyanate compound, (C) from 45 to 5 mass % of a polyol resin comprising a hydroxyl group value of from 30 to 120 mgKOH/g and a weight average molecular weight of from 5,000 to 50,000, (D) from 0.5 to 12 mass % of a diol comprising a weight average molecular weight from 120 to 1,000 and (E) from 0.01 to 1.5 mass % of a hardening catalyst, wherein the mass % proportions are based on the total mass of resin solid fractions of (A), (B) and (C).