| 摘要 |
PROBLEM TO BE SOLVED: To provide a primer that exhibits excellent adhesion to a plastic material and excellent interlayer adhesion to a coating film functioning as a substrate in recoating, and a coating method using the primer. SOLUTION: The primer comprises a chlorinated polyolefin resin (A) having a chlorine content of 5-50 mass% and a weight-average molecular weight of 1,000-100,000, a polyol resin (B) having a hydroxyl value of 30-120 mgKOH/g and a weight-average molecular weight of 5,000-50,000, a diol (C) having a weight-average molecular weight of 120-1,000 and a curing catalyst (D), where the contents of the components (A), (B), (C) and (D) are 50-90 mass%, 50-10 mass%, 0.5-12 mass% and 0.01-1.5 mass%, respectively, based on the total mass of the resin solid contents of the components (A) and (B). COPYRIGHT: (C)2008,JPO&INPIT
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