Water borne high solids coating compositions

Claim 1

Method of making water-borne high solids coating compositions which comprises blending: (A) at least one water borne organic polymer free of amide groups which is interpolymerzable with reactive urea derivatives and crosslinking agents; (B) water; (C) at least one reactive urea derivative having the generic formula: ##STR3## wherein each of R 1 , R 2 , R 3 and R 4 is a monovalent radical selected from the class consisting of hydrogen, alkyl groups having 1 to about 10 carbon atoms, hydroxyalkyl groups having 2 to about 4 carbon atoms and one or more hydroxyl groups, hydroxyalkyleneoxy groups having one or more hydroxyl groups and hydroxypolyalkyleneoxy groups having one or more hydroxyl groups and with the provisos that: (i) said urea contains at least one --NH and one --OH group or at least two --OH groups or at least two --NH groups; (ii) R 1 and R 2 or R 1 and R 3 can be linked to form a ring structure; and (iii) R 1 , R 2 , R 3 and R 4 are never all hydrogen at the same time; (D) a cross-linking amount of a cross-linking agent selected from the group consisting of a water-soluble polyepoxide, a water-dispersible polyepoxide, and a water-dispersible aminoplast; wherein for an aqueous dispersion coating the reactive urea derivative/water ratio is in the range of about 5 to 95 to about 30 to 70 and for an aqueous solution coating the reactive urea derivative/water ratio is in the range of about 20 to 80 to about 60 to 40.