Graft copolymer useful in electrodeposition

Details Graft copolymer useful in electrodeposition Graft copolymer useful in electrodeposition

C - Chemistry, Metallurgy

08

F

400/2018, 400/30

C08F 265/04 (2006.01) C08G 81/02 (2006.01) C09D 5/44 (2006.01) C09D 187/00 (2006.01) C25D 13/06 (2006.01)

Patent

CA 1124434

ABSTRACT OF THE DISCLOSURE A polyamide/epoxy ester graft copolymer having an acrylic polyamine backbone with secondary amine and hydroxy functionality, part of which is terminal primary hydroxy groups, onto which is grafted an epoxy-fatty acid ester. The ester is an epoxy resin reacted with a fatty acid resulting in a monoepoxide ester with one or less epoxy group per acid group. The ester is reacted with part of the secondary amine on the acrylic backbone. This system can be formulated to a nearly-neutral pH cathodic dispersion with good cure response at 150-175°C using conventional aminoplast crosslinkers.

327219

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