Heat-curable aqueous coating compositions for anodic dip-electro

Details Heat-curable aqueous coating compositions for anodic dip-electro Heat-curable aqueous coating compositions for anodic dip-electro

1980-11-10

1982-01-26

Schofer, Joseph L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

260 293, 260 294UA, 260 297H, C25D 1300

Patent

active

043127304

ABSTRACT:
A binder for a bakable aqueous anodic electrocoating composition comprises a water-soluble and/or water-dispersible addition compound, at least partially neutralized with a basic compound and esterified, the addition compound comprising 10-35% by weight of one or more .alpha.,.beta.-unsaturated dicarboxylic acids and 65-90% by weight of a butadiene polymer, liquid at 20.degree. C. and having at least 50 molar percent butadiene units and a molecular weight of 400 to 6,000, the addition compound being esterified to 20-70 equivalent percent, based on its acid number, with one or more unsaturated alcohols of the formula ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 are identical or different and each independently is hydrogen or methyl,

REFERENCES:
patent: 3654203 (1972-04-01), Dalmar et al.
patent: 4111872 (1978-09-01), Dworak

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