Trimellitic anhydride modified urethane electrocoating resins

Details Trimellitic anhydride modified urethane electrocoating resins Trimellitic anhydride modified urethane electrocoating resins

1974-03-04

1977-11-01

Rzucidlo, Eugene C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 18TN, 260 23TN, 260 292TN, 204181, C08G 1812

Patent

active

040564932

ABSTRACT:
A novel coating bath composition for anodic deposition of paint comprises on a pigment and particulate filler-free basis, an aqueous dispersion of a water-soluble base, and a unique polycarboxylic acid formed by (a) reacting 1 molar part of a triol with 1 molar part of an acyclic, olefinically unsaturated monocarboxylic acid of about 18 carbon atoms, (b) reacting the product of (a) with 2 molar parts of a diisocyanate, (c) reacting the product of (b) with 2 molar parts of a diol or triol, and (d) reacting the product of (c) with about 0.5 to about 2 molar parts of trimellitic anhydride.

REFERENCES:
patent: 3419510 (1968-12-01), Hudak
patent: 3477977 (1969-11-01), Schnell et al.
patent: 3539482 (1970-11-01), Stewart
patent: 3607800 (1971-09-01), Sekmakas
patent: 3709846 (1973-01-01), Tsou
patent: 3736216 (1973-05-01), Trimble et al.

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