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US 4,358,551 AGranted
Aqueous air-drying cationic epoxy ester coating compositions
AssigneeCelanese Corporation
InventorDavid A. Shimp
Life of this patent
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Abstract
Air-drying compositions useful as industrial maintenance coatings are made from aqueous solutions, dispersions or micro-emulsions of the salted reaction products of fatty acids and epoxy-amine adducts plus metal driers.
Claims11
An air-drying coating composition comprising
- (a) an aqueous solution of an acid salt of a resinous reaction product of an unsaturated fatty acid and an epoxy-amine adduct, said resinous reaction product having a titratable nitrogen content of about 0.3 to about 2 weight percent and no active amine hydrogen atoms;
- and
- (b) metallic driers
- wherein the unsaturated fatty acid is reacted with the epoxy-amine adduct in the amount of about 25 to about 50 weight percent based on total weight of the resinous reaction product, wherein the unsaturated fatty acid contains 16 to 22 carbon atoms and at least one ethylenically unsaturated group, wherein the epoxy-amide adduct has a molecular weight of about 1000 to about 3000 and is made by reacting glycidyl polyethers of dihydric phenols with amines and wherein the metallic driers are present in the amount of about 0.02 to about 0.5 weight percent metal based on total weight of the resinous reaction product.
1 more element
Dependencies are inferred from the claim text.