Esters of imidazolidinedione-based diepoxides and coating compositions containing same
AssigneePPG Industries, Inc.
InventorsRonald J. Lewarchik, J. Alden Erikson, William J. Birkmeyer
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Abstract
Esters of imidazolidinedione-based diepoxides are especially useful in coating compositions having a low organic solvent content. The esters have the structure ##STR1## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, one X is hydrogen and the other X is ##STR2## one Y is hydrogen and the other Y is ##STR3## where the R" groups are independently saturated hydrocarbon groups having from 1 to 17 carbon atoms or unsaturated hydrocarbon groups having from 4 to 17 carbon atoms and n is 0 or 1.
Claims27
An ester of imidazolidinedione-based diepoxide having the structure:
- ##STR14## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, one X is hydrogen and the other X is ##STR15## one Y is hydrogen and the other Y is ##STR16## where the R" groups are independently (a) alkyl groups having from 1 to 17 carbon atoms or (b) aryl or alkylaryl groups having from 6 to 10 carbon atoms and n is 0 or 1.
A coating composition containing less than about 40 percent organic solvent, consisting essentially of:
- (a) from about 5 percent to about 90 percent of an ester of imidazolidinedione-based diepoxide having the structure:
- ##STR17## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, one X is hydrogen and the other X is ##STR18## one Y is hydrogen and the other Y is ##STR19## where the R" groups are independently (a) alkyl groups having from 1 to 17 carbon atoms or (b) aryl or alkylaryl groups having from 6 to 10 carbon atoms and n is 0 or 1;
- and
- (b) from about 5 percent to about 80 percent of a crosslinking agent selected from the group consisting of aminoplasts, isocyanates, blocked isocyanates, phenoplasts, beta-hydroxyalkylamides and mixtures thereof.
Dependencies are inferred from the claim text.