Cathodically depositable coating compositions for electrodeposit

Details Cathodically depositable coating compositions for electrodeposit Cathodically depositable coating compositions for electrodeposit

1977-12-01

1983-07-26

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, 523414, 524901, 525528, C08L 6302

Patent

active

043955029

ABSTRACT:
Heat curable, cathodically depositable, aqueous coating compositions comprising an aqueous emulsion of 98 to 50 percent by weight, preferably 95 to 70 percent by weight, of one or more self-crosslinking cationic binders based on modified epoxy compounds, water-soluble upon partial or total neutralization with an inorganic or organic acid, and 2 to 50 percent by weight, preferably 5 to 30 percent by weight, of a di- and/or triurethane having the formula - ##STR1## wherein R represents an aromatic, cycloaliphatic, or aliphatic hydrocarbon radical; R.sub.1 stands for a hydroxyethyl(meth)acrylate or a hydroxypropyl(meth)acrylate radical; R.sub.2 is the radical of a saturated and/or unsaturated aliphatic monoalcohol with at least 6 carbon atoms and/or an alkyl or alkylene radical with at least 6 carbon atoms, and n is an integer of 1 or 2. The coating compositions cure at low temperatures and short curing times to provide films having excellent resistance to water, chemicals, and corrosion; and have good leveling characteristics and good adherence to diverse substrates.

REFERENCES:
patent: 3883483 (1975-05-01), Anderson et al.
patent: 4147676 (1979-04-01), Pampouchidis
patent: 4238594 (1980-12-01), Pampouchidis
patent: 4320220 (1982-03-01), Pampouchidis

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