Aqueous coating compositions including the reaction product of maleic anhydride with an unsaturated compound and an amine
AssigneeAkzo Nobel Coatings International B.V.
InventorsGary Pierce Craun, Jude Rademacher, Patricia Geelen
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Abstract
The invention includes an aqueous coating composition having a substituted succinimide compound, wherein the substituted succinimide compound has an acid value of at least about 30 mg KOH/g of the substituted succinimide compound. The substituted succinimide compound may be the reaction product of an unsaturated oil comprising at least one non-aromatic unsaturated carbon-carbon bond, a polymer derived from the unsaturated oil, or a combination thereof with maleic anhydride and a primary amine.
Claims10
An aqueous coating composition comprising a substituted succinimide compound, wherein the substituted succinimide compound has an acid value of at least about 30 mg KOH/g of the substituted succinimide compound, and wherein the substituted succinimide compound is the reaction product of
- a) an unsaturated oil comprising at least one non-aromatic unsaturated carbon-carbon bond, a polymer derived from the unsaturated oil, or a combination thereof;
- b) maleic anhydride;
- and
- c) a primary amine of general formula NH2RCOOH, wherein R is an alkyl group or an aryl group with about 2 to about 30 carbon atoms and wherein the amine (—NH2) group and the acid (—COOH) group of the primary amine are separated by more than one carbon atom.
A method of preparing an aqueous coating composition comprising:
- a) reacting an unsaturated oil comprising at least one non-aromatic unsaturated carbon-carbon bond, a polymer derived from the unsaturated oil, or a combination thereof with maleic anhydride to form a substituted succinic anhydride compound;
- b) reacting the substituted succinic anhydride compound with a primary amine of general formula NH2RCOOH, where R is an alkyl group or an aryl group with about 2 to about 30 carbon atoms and wherein the amine (—NH2) group and the acid (—COOH) group of the primary amine are separated by more than one carbon atom to form an amic acid intermediate;
- c) evolving water from the amic acid intermediate to form a substituted succinimide compound;
- and
- d) neutralizing the substituted succinimide compound in the presence of water to form the aqueous coating composition,
- wherein the substituted succinimide compound has an acid value of at least about 30 mg KOH/g of the substituted succinimide compound.
Dependencies are inferred from the claim text.