Organic coated material having an electrolytically polymerized c

Details Organic coated material having an electrolytically polymerized c Organic coated material having an electrolytically polymerized c

1996-10-30

1999-12-07

Thibodeau, Paul

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Depositing predominantly single metal coating

205284, 205317, 205319, 205320, 427487, 427409, C25D 304, C25D 1100, C25D 1138, C25D 900

Patent

active

059977140

ABSTRACT:
The invention provides a material coated with an organic film which exhibits excellent corrosion resistance and lacquer adhesion. The invention includes an electroconductive substrate coated with an electrolytically polymerized coating film containing chromium. Particularly, a zinc-type plated steel sheet coated with an electrolytically polymerized coating film containing chromium in accordance with the invention is well suited for application in vehicle bodies. The invention further provides a method of making a material coated with an organic film which involves forming organic coating material containing chromium on an electroconductive substrate acting as an electrode by electrolytically polymerizing an organic monomer in an electrolyte solution containing chromium. The method provides a monolithic composite structure comprising chromium compounds and an organic coating film, and avoid the problems associated with passivation after chromium plating of steel. The method of the invention can also reduce processing by two-thirds in relation to conventional methods.

REFERENCES:
patent: 2902390 (1959-09-01), Bell
patent: 3053692 (1962-01-01), Pocock
patent: 4030945 (1977-06-01), Hall et al.
patent: 4137368 (1979-01-01), Miller
patent: 4637840 (1987-01-01), Fujii et al.
patent: 4775600 (1988-10-01), Adaniya et al.
patent: 5023146 (1991-06-01), Saito et al.
patent: 5231523 (1993-07-01), Nakaya et al.
Chemical Abstracts, vol. 106, No. 14, Apr. 6, 1987, abstract No. 109871, Takakubom, M. "Electrochemical polymerization of pyrrole in aqueous solutions".

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