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PPG patents crosslinking agent

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

Patent No. U.S. 7,087,683 B2
PPG Industries has been granted a crosslinking agent comprised of an ungelled reaction product of the following reactants: an aminoplast resin and a monofunctional sulfonamide having only one active hydrogen. The crosslinking agent has a glass transition temperature of at least 10° C and is substantially free of functional groups that are reactive with the aminoplast resin; wherein the aminoplast resin comprises an aminotriazine compound comprising an (alkoxyalkyl) aminotriazine having one or less non-alkylated NH bond per triazine ring.

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