Novel electrodeposition coating system having improved...

Details Novel electrodeposition coating system having improved... Novel electrodeposition coating system having improved...

C - Chemistry, Metallurgy

09

D

400/3021, 204/97

C09D 163/00 (2006.01) C08G 81/02 (2006.01) C08L 53/02 (2006.01) C08L 63/00 (2006.01) C09D 5/24 (2006.01) C09D 5/44 (2006.01) C25D 13/08 (2006.01)

Patent

CA 2010819

The present invention provides a resin which is a mixture of a) the product of a diol and one or more diepoxides and b) an A-B-A block copolymer wherein A represents blocks of an epoxy/diol copolymer which is the reaction product of a diol and a diepoxide, and B represents blocks of an expoxy-capped, carboxyl- terminated polybutadiene or polybutadiene/ acrylonitrile copolymer. Amine resins, produced by reaction of this resin with an amine are useful as the principal resin in electrocoating formulations which produce deposited films having excellent corrosion resistance and improved impact and chip resistance.

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