Coating process and composition

Details Coating process and composition Coating process and composition

1970-07-16

1976-04-13

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 21, 260 293, 260 25, C08B 9100

Patent

active

039502864

ABSTRACT:
A process of making water-soluble coating compositions is described characterized in that (A) an adduct of an alpha-beta ethylenically unsaturated dicarboxylic acid or anhydride with olefinic, unaltered or polymerized, oil fatty acids, or mixtures of such acids with other unsaturated carboxylic acids or natural esters thereof, or hydroxy-free polyol esters thereof; (B) a polyhydroxy compound; and (C) a water-insoluble, hardenable phenol-aldehyde condensation product of a phenol substituted in the ortho- or para-position with an alkyl radical having at least three carbon atoms, are combined at an elevated temperature to form a homogeneous resinous body; and the resin thereafter made water-soluble through the addition of a water-soluble nitrogen base. The water-soluble coating compositions are particularly useful for electrodeposition providing films having improved surface characteristics and corrosion resistance.

REFERENCES:
patent: 3251791 (1966-05-01), Goodchild
patent: 3300424 (1967-01-01), Hoenel et al.
patent: 3351675 (1967-11-01), Gilchrist

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