ELECTROCONDUCTIVE COMPOSITE SUBSTRATES COATED WITH ELECTRODEPOSITABLE COATING COMPOSITIONS AND METHODS OF PREPARING THEM

摘要

A process for coating a plastic, electroconductive substrate is provided, comprising:;(a) electrophoretically depositing on the substrate a curable, electrodepositable coating composition to form an electrodeposited coating over at least a portion of the substrate, the electrodepositable coating composition comprising a resinous phase dispersed in an aqueous medium, said resinous phase comprising:
(1) a resin component containing an active hydrogen-containing, cationic or anionic resin comprising an acrylic, polyester, polyurethane and/or polyepoxide polymer; and(2) a curing agent; and;(b) heating the coated substrate to a temperature less than 250° F. for a time sufficient to cure the electrodeposited coating on the substrate.

主权项

1. A process for coating a plastic, electroconductive substrate comprising:
(a) electrophoretically depositing on the substrate a curable, electrodepositable coating composition to form an electrodeposited coating over at least a portion of the substrate, the electrodepositable coating composition comprising a resinous phase dispersed in an aqueous medium, said resinous phase comprising:
(1) a resin component containing an active hydrogen-containing, cationic or anionic resin comprising an acrylic, polyester, polyurethane and/or polyepoxide polymer; and(2) a curing agent; and (b) heating the coated substrate to a temperature less than 250° F. for a time sufficient to cure the electrodeposited coating on the substrate.