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BASF Patents Electrocoat



Published February 7, 2013
U.S. 8,192,603 B2
BASF Coatings GmbH has been granted a patent for an aqueous coating composition comprised of a metal oxide selected from the group consisting of bismuth oxide, vanadium oxide, manganese oxide, cobalt oxide, zinc oxide, strontium oxide, yttrium oxide, molybdenum oxide, zirconium oxide, lanthanum oxide, oxides of the lanthanide series of elements and combinations thereof and an electrodepositable binder, the binder is comprised of resin(s) comprised of a phosphorous-containing group in which X is a hydrogen, a monovalent hydrocarbon or an oxygen atom having a single covalent bond to the phosphorous atom, and each oxygen atom has a covalent bond to a hydrogen atom, an alkyl group, an aryl group, an alkylaryl group, an arylalkyl group, or the resin or one of the resins, with the caveat that at least one oxygen atom has a covalent bond to the resin or one of the resins; a carboxylate group separated by from 2-4 carbons from an ester group; and  a tridentate amine ligand.


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