ADHESIVE COMPOSITION FOR POLYPROPYLENE-COATED METALLIC PLATE AND ITS PRODUCTION USING THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain an adhesive composition capable of firmly bonding a polypropylene film to a metallic plate according to a low-temperature process so as to enable the retention of a design applied to the surface of the polypropylene film. SOLUTION: This adhesive composition is obtained by mixing 90-10wt.% thermosetting resin prepared by modifying a reactional product obtained by reacting a diglycidylbisphenol type epoxy resin with a bivalent carboxylic acid and a secondary amine having a primary hydroxyalky group by using a blocked isocyanate with 10-90wt.% maleic anhydride-grafted polypropylene powder having 20-100g/230 deg.C.10min melt index.