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US 6,150,460 AGranted
Curable compositions containing novel polyfunctional crosslinking agents
AssigneeCytec Technology Corp.
InventorsBalwant Singh, Laurence Wu-Kwang Chang
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Abstract
Novel polyfunctional glyoxylated compounds and compositions containing the same are disclosed which are particularly suitable for use as crosslinking components in curable compositions and also find use in imparting wet adhesion properties to water-based paints and coatings. A process for preparing novel polyfunctional glyoxylated compounds is also disclosed.
Claims11
A curable composition comprising:
- (a) a crosslinker component comprising a polyfunctional glyoxylated compound of the Formula I ##STR5## wherein n is a whole positive integer of at least 2;
- wherein Y is ##STR6## wherein A is --NH-- or --O--;
- wherein R is the residue of a poly (active hydrogen group)-containing compound after abstraction of n active hydrogen-containing groups, wherein the active hydrogen groups are selected from hydroxyl, amino and aminohydroxyl groups;
- wherein R.sup.3 is hydrogen, an alkyl group having from 1 to 4 carbon atoms, a hydroxymethyl or an alkoxymethyl group having 2 to 4 carbon atoms;
- and
- wherein each R.sup.4 is H or an alkyl group having from 1 to 6 carbon atoms;
- and
- (b) a polyfunctional active hydrogen-containing material containing an average of at least two groups with active hydrogen functionality and/or functionality convertible thereto.
5 more elements
A coating composition comprising:
- (a) a crosslinker component comprising a polyfunctional glyoxylated compound of the Formula I ##STR7## wherein n is a whole positive integer of at least 2;
- wherein Y is ##STR8## wherein A is --NH-- or --O--;
- wherein R is the residue of a poly (active hydrogen group)-containing compound after abstraction of n active hydrogen-containing groups, wherein the active hydrogen groups are selected from hydroxyl, amino and aminohydroxyl groups;
- wherein R.sup.3 is hydrogen, an alkyl group having from 1 to 4 carbon atoms, a hydroxymethyl or an alkoxymethyl group having 2 to 4 carbon atoms;
- and
- wherein each R.sup.4 is H or an alkyl group having from 1 to 6 carbon atoms;
- and
- (b) a polyfunctional active hydrogen-containing material containing on average of at least two groups with active hydrogen functionality and/or functionality convertible thereto.
5 more elements
Dependencies are inferred from the claim text.