PAINT COMPOSITION
PURPOSE:To provide a paint compsn. which can be cured by baking at a low temp. and has excellent interlaminar adhesion, containing a specified melamine resin and a crosslinking curable resin having functional groups reactive with the melamine resin as vehicles. CONSTITUTION:5-40wt% melamine resin (A...
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Zusammenfassung: | PURPOSE:To provide a paint compsn. which can be cured by baking at a low temp. and has excellent interlaminar adhesion, containing a specified melamine resin and a crosslinking curable resin having functional groups reactive with the melamine resin as vehicles. CONSTITUTION:5-40wt% melamine resin (A) having a weight-average MW of 6,000-12,000 as measured by gel permeation chromatography and contg. functional groups in such a proportion that the sum of the imino and methylol groups is 2.0-2.5, the ratio of the number of the methylol groups to that of the imino groups is 1.0-2.5 and the number of alkoxymethylol groups is at least 2.0 per triazine nucleus on the average, and 95-60wt% crosslinking curable resin (B) (e.g. alkyd resin) contg. functional groups reactive with component A and having a resin acid value of 2-50 based on a polybasic acid exhibiting a half- equivalent point potential of -300mV or above as measured by non-aqueous potentiometric titration in a state where a resin acid value is exhibited, are incorporated as vehicles. |
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