Cathodic electrocoating compositions including alkyl...

Details Cathodic electrocoating compositions including alkyl... Cathodic electrocoating compositions including alkyl...

C - Chemistry, Metallurgy

07

C

400/5119, 400/70

C07C 261/00 (2006.01) C08G 71/00 (2006.01) C09D 5/44 (2006.01)

Patent

CA 1274033

CATHODIC ELECTROCOATING COMPOSITIONS INCLUDING ALKYL CARBAMATE-CONTAINING CROSS-LINKING AGENTS AND METHOD OF MAKING COATINGS THEREFROM ABSTRACT A cathodic electrocoating composition comprises a hydrophobic cross-linking agent having at least two carba- mate groups selected from either hydroxyalkyl carbamate groups or alkyl carbamate groups obtained by capping the reaction product of a cyclic carbonate and a polyamine, a water-insoluble and hydrophobic amino group-containing polymer, and an acid disperser. A crosslinking catalyst is optionally included. The components are stable at ambient temperature and may be electrodeposited onto a substrate and heated thereon to be cured to provide a thermoset coating.

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