Cathodically depositable ester-containing coating compositions

Details Cathodically depositable ester-containing coating compositions Cathodically depositable ester-containing coating compositions

1977-12-19

1983-09-06

Pertilla, Theodore E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

204181C, 524539, 524901, 525440, 525442, 525443, 528 71, 528 75, C08L 6708

Patent

active

044030509

ABSTRACT:
Cathodically depositable, aqueous coating compositions comprising the reaction product of (A) polycondensates having free hydroxyl groups with a hydroxyl number of at least 40 mg KOH/g, and an average maximum molecular weight of 5000; and (B) a compound having an average of from about 0.8 to 1.5 free isocyanate groups and at least one basic aliphatically bound nitrogen atom. Optionally, there can be included in the reaction product a compound having from about 0.8 to 1.5 free isocyanate groups and from 1 to 3 ethylenically unsaturated double bonds. The coating compositions cure at relatively low temperatures and relatively short curing times to provide films having excellent resistance to water, chemicals, and corrosion.

REFERENCES:
patent: 4237038 (1980-12-01), Pampouchidis et al.
patent: 4238594 (1980-07-01), Pampouchidis

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