Patent ID: 7910663

Claim:
A coating comprising a composition comprising: a water-borne polymer comprising one or more COOH groups; a metal cross-linking agent; and a stabilizing agent comprising from 2 to 10 carbon atoms and at least two functional groups independently selected from hydroxy and carboxy, wherein the amount of stabilizing agent is 1.4 mole percent or more of the amount of cross-linking agent; wherein: the composition is stable for at least a month at 40° C. and up to six months at room temperature; the stabilizing agent is selected from tartaric acid, gluconic acid, mucic acid, saccharic acid, oxalic acid, glycolic acid, lactic acid, malic acid, citric acid, mandelic acid, malonic acid, maleic acid, succinic acid, glutaric acid, mannitol, fructose, glucose, a salt thereof, or a mixture of two or more thereof; and the coating is a paint, an ink, an overprint varnish, or a heat seal lacquer.