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US 4,119,609 AGranted
Curable epoxy-carboxylic acid adducts
AssigneeShell Oil Company
InventorsRoy A. Allen, LeRoy W. Scott
Life of this patent
Estimating the term…
Abstract
Adducts of epoxy compounds with amino-substituted aromatic carboxylic acids are described. These carboxyl-containing adducts may be cured with conventional epoxy curing agents or solubilized to prepare aqueous coating systems.
Claims7
A curable, carboxyl-containing precondensate prepared by reacting at a temperature from about 150.degree. F. to about 250.degree. F. (1) an epoxy compound containing more than one vicinal epoxy group with (2) an amino-substituted aromatic carboxylic acid, said precondensate having a theoretical acid number of from about 30 to 90 and a weight per epoxy of from about 2400 to about 40,000.
Dependencies are inferred from the claim text.