Filtration stabilization of autodeposition baths

Details Filtration stabilization of autodeposition baths Filtration stabilization of autodeposition baths

1985-06-04

1987-04-28

Ivy, C. Warren

Coating processes

With post-treatment of coating or coating material

Coating material recirculation or regeneration

427435, 523343, C23C 2286, C23C 2206

Patent

active

046613854

ABSTRACT:
A method for stabilizing the iron salt content of a PVDC latex autodeposition bath by: filtering a metered portion of the bath to separate it into a filtrate containing the iron salts and a retentate containing the latex and pigment particles; discarding the filtrate; recycling the retentate back into the bath; and adding D.I. water in a volume equal to that of the filtrate.

REFERENCES:
patent: 3663402 (1972-05-01), Christenson
patent: 3709743 (1973-01-01), Dalton
patent: 3839097 (1974-10-01), Hall
patent: 3936546 (1976-02-01), Hall
patent: 4177180 (1979-12-01), Hall
patent: 4191676 (1980-03-01), Hall
patent: 4229492 (1980-10-01), Leister
patent: 4231850 (1980-11-01), Kato
patent: 4310450 (1982-01-01), Wang
patent: 4357372 (1982-11-01), Leister
patent: 4414350 (1983-11-01), Hall

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