Method of electrolyte bath stabilization

Details Method of electrolyte bath stabilization Method of electrolyte bath stabilization

C - Chemistry, Metallurgy

25

D

C25D 13/10 (2006.01) C08G 59/14 (2006.01) C09D 5/44 (2006.01) C09D 163/00 (2006.01)

Patent

CA 2278258

A method of stabilization of electrolyte bath in electrocoating by immersing a substrate in the bath filled with a cationic electrocoating composition containing a basic resin and an amine compound and carrying out electrocoating; wherein said basic resin in said bath contains, per 100 grams of the resin solids, 10 to 300 millimoles of sulfonium group and 50 to 2,000 millimoles of carbon-carbon unsaturated bond, and said amine compound is contained in an amount of 1 to 50 millimoles per 100 grams of the basic resin solids in the bath, said amount being not less than 5 mole percent relative to the sulfonium group content in said basic resin, so that the sulfonium group remaining in the coat amount to not more than 50% relative to the sulfonium group contained in the electrocoating composition in said bath.

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