Cathodically depositable coating compositions

Details Cathodically depositable coating compositions Cathodically depositable coating compositions

1977-12-19

1983-06-21

Pertilla, Theodore E.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

204181C, 523415, 524507, 524901, 528 67, 528 71, 528 75, C08L 7504

Patent

active

043895093

ABSTRACT:
Cathodically depositable, aqueous coating compositions comprising the reaction product of (A) diene polymers containing free hydroxyl groups with a hydroxyl number of at least 40 mg KOH/g and an average maximum molecular weight of 4000; 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: 3674743 (1972-07-01), Verdol et al.
patent: 4237038 (1980-12-01), Pampouchidis et al.
patent: 4238594 (1977-07-01), Pampouchidis

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