Metal coloring process

Details Metal coloring process Metal coloring process

1996-09-16

1998-03-03

Dudash, Diana

Coating processes

Applying superposed diverse coating or coating a coated base

Synthetic resin coating

148244, 148252, 427318, 4273884, 427352, 427327, B05D 138, B05D 300, C23C 2284

Patent

active

057231834

ABSTRACT:
The invention is the chemical composition and method for forming a chemical conversion coating on ferrous metal surfaces and subsequent coloring of said conversion coating through the application of a water-soluble dye. The conversion coating has an ordered crystalline structure composed of ferrous oxalate or other ferrous dicarboxylates. The conversion coating can be colored through the application of a water-soluble reactive dye which bonds with Fe (II) within the ferrous dicarboxylate matrix, bound to the dicarboxylate molecules, thereby becoming water insoluble and permanent. When sealed with an appropriate rust preventive top coat, the result is an attractive and protective finish of minimal thickness which can be applied through simple immersion process techniques. Said finish can serve as a final protective finish on a fabricated ferrous metal article and also affords a degree of lubricity for assembly, break-in purposes, or anti-galling protection and serves as an adhesive base for paint.

REFERENCES:
patent: Re34272 (1993-06-01), Michaud et al.
patent: 2774696 (1956-12-01), Gibson
patent: 2791525 (1957-05-01), Rausch et al.
patent: 2805969 (1957-09-01), Goodspeed et al.
patent: 2835616 (1958-05-01), Rausch et al.
patent: 2850417 (1958-09-01), Jenkins et al.
patent: 3083149 (1963-03-01), Cranston
patent: 3121033 (1964-02-01), Stapleton
patent: 3481762 (1969-12-01), Streicher
patent: 3559280 (1971-02-01), Mailhiot et al.
patent: 3598659 (1971-08-01), Klingler et al.
patent: 3632452 (1972-01-01), Matsushima et al.
patent: 3649371 (1972-03-01), Tongyai
patent: 3709742 (1973-01-01), Jacobs
patent: 3753942 (1973-08-01), Franiau
patent: 3806375 (1974-04-01), McLeod et al.
patent: 3879237 (1975-04-01), Faigen et al.
patent: 3936445 (1976-02-01), Pfitzner et al.
patent: 4018934 (1977-04-01), Parliament
patent: 4086182 (1978-04-01), Hengelhaupt et al.
patent: 4656097 (1987-04-01), Claffey et al.
patent: 4781948 (1988-11-01), Caldwell
patent: 4944812 (1990-07-01), Lindert et al.
patent: 5320872 (1994-06-01), McNeel et al.
patent: 5466297 (1995-11-01), Goodman et al.

Affiliated with

Also associated with

Rating

Metal coloring process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Metal coloring process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal coloring process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2245821