| 摘要 |
PURPOSE:To obtain the titled composition which well serves as both a primer and a top-coating, by mixing a specified thermosetting paint composition with pyrrolidone (derivative) and an epoxy-group-containing compound. CONSTITUTION:A thermosetting paint composition is obtained by mixing a polyester polyol resin (A), obtained by reacting a polybasic acid component with a polyol component, with a crosslinking agent (B) comprising an aminoaldehyde resin (a) or a polyisocyanate compound (b). 100pts.wt. mixture of 50-95pts.wt. this composition and 5-50pts.wt. epoxy group-containing compound (C) of a number-average MW of 100-10,000 is mixed with 5-200pts.wt. pyrrolidone (derivative) (D) and the resulting mixture is mixed with, optionally, a solvent, a pigment, a plasticizer, a film-strengthening resin, a film modifier, etc., to obtain the titled composition. This composition is applied to the surface of a polyurethane molding and crosslinked by curing at 70-180 deg.C for 1-100min where the crosslinking agent is component (a) or at room temperature -180 deg.C for 1min-24hr where the crosslinking agent is component (b).
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