Cathodic electrocoating process and composition

Details Cathodic electrocoating process and composition Cathodic electrocoating process and composition

C - Chemistry, Metallurgy

08

L

400/5119, 400/74

C08L 75/12 (2006.01) C08G 18/08 (2006.01) C08G 18/46 (2006.01) C08G 18/60 (2006.01) C08G 18/62 (2006.01) C08G 18/64 (2006.01) C08G 18/72 (2006.01) C08G 18/80 (2006.01) C09D 5/44 (2006.01) C09D 161/20 (2006.01) C25D 13/06 (2006.01)

Patent

CA 1048672

Abstract of the Disclosure- This invention relates to novel compositions and to a process for preparing an electrocoated article which comprises maintaining a liquid bath composition having dispersed therein: (a) particles of an amine-containing organic coating material having a positive charge in combination with (b) a blocked multifunctional isocyanate; maintaining a first electrode in intimate electrical contact with said bath as anode; immersing in said bath as a second electrode a conductive article at least a portion of which bears a negative charge as cathode; passing an electric current through said electrodes and said bath thereby electrocoating said conductive article; and heating said electrocoated article after removal from said bath to form a water-resistant crosslinked polymerized electrocoated surface on said electrocoated article.

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