Patent ID: 7452952

Claim:
A method for applying a UV cured, highly cross-linked coating as one or more layers to a substrate and subsequently removing all coating layers from a substrate comprising the steps of: (a) applying one or more layers of a coating comprising a curable, removable multi-stage emulsion polymer; wherein a shell of said multi-stage emulsion polymer comprises a carboxylic acid-containing emulsion polymer that comprises, as polymerized units, one or more comonomers having carboxylic acid functionality, and wherein said multitstage emulsion polymer further comprises 5 to 80 percent, based on equivalents of acid groups, polyvalent metal ion, (b) curing the composition to form a highly cross-linked coating over the substrate by exposing the composition to ultraviolet radiation; and (c) removing all coating layers from the substrate by exposing the coating to one or more chemical stripping agents.