POWDER PRIMER FOR ALUMINUM FOIL

摘要

PROBLEM TO BE SOLVED: To obtain a powder coating material capable of forming a powder primer coating film having excellent corrosion resistance. SOLUTION: This powder primer for aluminum foils comprises (A) an epoxy group-containing acrylic base resin, (B) a polycarboxylic acid compound, and (C) a phosphoric acid epoxy resin obtained by reacting (a) a phosphoric ester compound having at least one P-H bond obtained by reacting a monoglycidyl ether compound and/or a monoglycidyl ester with a phosphoric acid with (b) an epoxy compound having two or more epoxy groups in the molecule in an amount of the above component (C) of 0.01-20 pts.wt. based on 100 pts.wt. (solid content) sum of components (A) and (B).