Polyurethane adhesive of epoxy resin, polyisocyanate, phosphorus oxy acid, and carboxylic acid

摘要

A polyurethane adhesive composition containing an oxy acid of phosphorus or a derivative thereof, a carboxylic acid or an anhydride thereof, a silane coupling agent and an epoxy resin can serve as an adhesive for manufacturing food packaging materials, for instance, giving bonds having very good bond strength, heat resistance and hot water resistance between a metal foil and a plastic film.