Process for producing water-soluble binders for electrodepositio

Details Process for producing water-soluble binders for electrodepositio Process for producing water-soluble binders for electrodepositio

1975-03-25

1978-09-05

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

204181C, 260 237R, 260 4244, 260862, 260873, 260876R, C08L 9100

Patent

active

041118723

ABSTRACT:
A process for preparing, and water-soluble binders are described characterized in that diene polymers are completely reacted with alpha, beta-ethylenically unsaturated carboxylic acids or derivatives thereof to form an adduct; the carboxyl content of the adduct esterified with a monoalcohol up to a maximum of 70 percent by weight of the carboxyl groups to provide a partially esterified adduct, and 80 to 98 percent by weight of the partially esterified adduct and 2 to 20 percent by weight of a resinous polycarboxylic acid having an acid value of from 150 to 350 mg KOH/g are jointly reacted with an inorganic or organic base to form a water-soluble salt. The water-soluble binders which are particularly suitable for electrodeposition provide coatings having good through-drying characteristics, excellent hardness, good surface appearance, and excellent resistance to corrosion.

REFERENCES:
patent: 3518213 (1970-06-01), Miyoshi et al.
patent: 3689446 (1972-09-01), Furuya et al.
patent: 3705866 (1972-12-01), Shibata

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