Multiple electrocoating process

Details Multiple electrocoating process Multiple electrocoating process

1988-01-04

1990-11-06

Tung, T.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041819, C25D 1300

Patent

active

049683993

ABSTRACT:
Disclosed is a multiple electrocoating process comprising coating once or more on a substrate a first electrocoating composition, coating a second electrocoating composition on the uncured first electrocoating composition and then curing all electrodeposited coatings, characterized in that the first electrocoating composition is an aqueous dispersion containing micro gel particles having an electric charge which is specifically prepared; and the second electrocoating composition comprises an anionic or cationic film-forming aqueous resin (C) and a thermosetting crosslinking agent (D) which is self-crosslinked or crosslinked with said aqueous resin (C).

REFERENCES:
patent: 4101486 (1978-07-01), Bosso
patent: 4175018 (1979-11-01), Gacesa
patent: 4208262 (1980-06-01), Kubo
patent: 4333807 (1982-06-01), Suzuki
patent: 4336177 (1982-06-01), Backhouse
patent: 4376849 (1983-03-01), Kempter
patent: 4543376 (1985-09-01), Schupp
patent: 4622116 (1986-11-01), Elton
patent: 4716182 (1987-12-01), Hess

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