초록

Environmental etch resistant coatings are described. The coatings are derived from aqueous, curable coating compositions comprising:

대표청구항 ▼

[ We claim:] [1.] A topcoat coating derived from an aqueous, curable coating composition comprising:(a) a carbamate-functional grafted acrylic polymer that comprises the reaction product of:(i) a first acrylic polymer having thereon a functionality (I). and(ii) a second acrylic polymer having thereo

[ We claim:] [1.] A topcoat coating derived from an aqueous, curable coating composition comprising:(a) a carbamate-functional grafted acrylic polymer that comprises the reaction product of:(i) a first acrylic polymer having thereon a functionality (I). and(ii) a second acrylic polymer having thereon a functionality (II) that is reactive toward the functionality (I) of the first acrylic polymer, rein at least one of the first and second acrylic polymers has thereon groups that impart water dispersibility to the grafted acrylic polymer, and further wherein at least one of the first and second acrylic polymers has thereon carbamate functionality; and(b) a compound having a plurality of functional groups that are reactive with the carbamate functionality.[ D523-89, of at least 80 or a DOI, as defined by A][ E430-91, of at least 80, or both.][ D523-89, of at least 80.][ E430-91, of at least 80.]