Back to results
US 5,516,846 AGranted
Reactive coatings comprising an acid-functional component, an anhydride-functional component and a monoepoxy functional compound
AssigneeThe Sherwin-Williams Company
InventorsMohamad D. Shalati, James A. Marquart, John L. Petty, Rodney M. Harris
Life of this patent
Estimating the term…
Abstract
Coating compositions which comprise: (i) an acid-functional compound having an average of at least two carboxylic acid groups per molecule; and (ii) an anhydride-functional compound having an average of at least two cyclic carboxylic acid anhydride groups per molecule; and (iii) an epoxy-functional compound having an average of at least one epoxy group per molecule; wherein at least one of the compounds (i), (ii), or (iii) comprises a film forming polymer.
Claims27
A curable composition consisting essentially of:
- (i) an acid-functional polymer obtained by the reaction of a hydroxy-functional polymer and at least one cyclic anhydride to form acid and ester groups, and having an average of at least two carboxylic acid groups per molecule;
- and
- (ii) an anhydride-functional component having an average of at least two cyclic carboxylic acid anhydride groups per molecule;
- and
- (iii) an epoxy-functional component having one epoxy group per molecule;
- wherein at least one of the components (i), (ii), or (iii) comprises a film forming polymer.
3 more elements
A curable composition consisting essentially of:
- (i) an acid-functional polymer having an average of at least two carboxylic acid groups per molecule and wherein the polymer is obtained by the half-ester reaction of a hydroxy-functional polymer with a cyclic carboxylic acid anhydride;
- and
- (ii) an anhydride-functional polymer having an average of at least two cyclic carboxylic acid anhydride groups per molecule and wherein the anhydride-functional polymer is the addition polymerization reaction product of (a) 5 to about 40 weight percent of an ethylenically unsaturated monoanhydride and (b) 60 to about 95 weight percent of at least one other ethylenically unsaturated monomer copolymerizable with the ethylenically unsaturated anhydride;
- and
- (iii) an epoxy-functional component having one epoxy group per molecule.
2 more elements
Dependencies are inferred from the claim text.