| 摘要 |
PURPOSE:To prolong the service life and to accelerate the curing speed of a coated film by using a paint contg. a specified organic metallic salt in curing the coated film of a two-part urethane paint. CONSTITUTION:A mixed soln. added with a carboxylate of metal selected from a group consisting of zinc, lead, and tin is coated on a substrate in a curing method of the coated film of a two-part urethane paint by using a mixed soln. of a prepolymer contg. an isocyanate group and a prepolymer contg. a hydroxyl group. The coated film is dried in the presence of ammonia or amine. The service life is prolonged, and the curing speed of the coated film is accelerated in this way.
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