polyestrous cationicas aliphatic resins and its use inthe electrodeposition.

A composition consisting electro depositable in a resinous phase dispersed in an aqueous medium, the resinous phase includes a polymer of cationic polyester consisting of the reaction product of the following reactants: a. an aromatic carboxylic acid and / or cycloaliphatic polyisocyanate containing at least two aromatic carboxyl groups and / or secondary aliphatic, or an anhydride thereof; B. a branched aliphatic, cyclo-aliphatic or araliphatic containing at least two aliphatic hydroxyl groups, aliphatic hydroxyl groups which are secondary or tertiary hydroxyl groups or primary hydroxyl groups attached to adjacent to a tertiary or quaternary carbon, and carbon c. a compound containing an ionic salt group or a group which becomes an ionic salt group.