COATING COMPOSITIONS FOR COIL COATING, METHODS FOR MAKING SUCH COATING COMPOSITIONS AND COIL COATING METHODS

摘要

Coating compositions for coil coating, methods for making such coating compositions and coil coating methods are provided. In an exemplary embodiment, a coating composition includes an aqueous carrier and a film-forming binder dispersed in the aqueous carrier. The film-forming binder contains an epoxy-amine adduct and a blocked polyisocyanate crosslinking agent. The film-forming binder has associated amine/acid groups until subjected to heat of at least about 165.5° C. (330° F.). The coating composition also contains a pigment and a grinding resin. The coating composition has a solids content of at least about 40 wt. % based on a total weight of the coating composition.

主权项

1. A coated metal structure comprising:
a metal structure; and a coating composition disposed on the metal structure, wherein the coating composition comprises:
an aqueous carrier;a film-forming binder dispersed in the aqueous carrier, the film-forming binder comprising an epoxy-amine adduct and a blocked polyisocyanate crosslinking agent, wherein the film-forming binder has associated amine/acid groups until subjected to heat of at least about 165.5° C. (330° F.);a pigment; anda grinding resin,wherein the coating composition as applied on the metal structure has a solids content of at least about 40 wt. % based on a total weight of the coating composition.