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ROHM and Haas



Published March 14, 2008
Patent No. U.S. 7,230,060 B2
Rohm and Haas Co. has been granted a patent for a coating composition comprised of a multi-stage emulsion polymer that is both radiation curable and removable and includes carboxylic functional groups in the coating that react with one or more chemical stripping agents, effecting the removal of the coating from a substrate, wherein a shell of the multi-stage emulsion polymer is comprised of a carboxylic acid-containing emulsion polymer that is comprised of, as polymerized units, one or more comonomers having carboxylic acid functionality, wherein the multistage emulsion polymer further is comprised of 5-80%, based on equivalents of acid groups, polyvalent metal ion.



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