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BASF patents coating for adhesion to olefinic substrates

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

Patent No. U.S. 7,816,449 B2
BASF Coatings has been granted a patent for a coating composition comprised of film forming components and an adhesion promoter comprised of an olefin-based polymer having a functionality thereon that is essentially unreacted with the film forming components of the coating composition when subjected to curing conditions, wherein the film forming components comprised of a principal, film-forming resin and a melamine formaldehyde crosslinker reactive with the principal, film-forming resin when the coating composition when subjected to curing conditions; wherein the olefin-based polymer has at least one acid functional group and wherein the olefin-based polymer is a block copolymer formed by reacting a substantially saturated olefin polymer with a lactone chain-extension reagent. 

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