Metal plating process

Details Metal plating process Metal plating process

2007-04-17

2007-04-17

Klemanski, Helene (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

C106S001220, C106S001250, C106S286100, C427S437000, C427S443100, C427S419100, C148S243000

Reexamination Certificate

active

11136291

ABSTRACT:
A process for forming a coating on a metal substrate includes contacting the substrate with a molybdate solution having a pH of between 3.5 and 5 inclusive containing an acid with the proviso that the acid is not nitric acid. The substrate is contacted with the solution at a temperature between 30 and 75 degrees Celsius and results in a yellow coating that is kinetically stable from 20 seconds to 300 seconds before the coating darkens to a final black coloration. Water washing of the yellow coating precludes further color development. The resulting yellow coating is amenable to overlayering with a seal coat.

REFERENCES:
patent: 1798218 (1931-03-01), Pacz
patent: 2219977 (1940-10-01), Brill
patent: 2650903 (1953-09-01), Garrison et al.
patent: 2805969 (1957-09-01), Goodspeed et al.
patent: 2835616 (1958-05-01), Rausch et al.
patent: 3404044 (1968-10-01), Russell
patent: 3528860 (1970-09-01), Kronstein
patent: 3935345 (1976-01-01), Lema
patent: 4298404 (1981-11-01), Greene
patent: 4385940 (1983-05-01), Kirihara et al.
patent: 4985097 (1991-01-01), Matsumura et al.
patent: 5525431 (1996-06-01), Kanamaru et al.
patent: 5700334 (1997-12-01), Ishii et al.
patent: 5743971 (1998-04-01), Inoue et al.
patent: 6027578 (2000-02-01), Marzano
patent: 6083309 (2000-07-01), Tomlinson
patent: 6309476 (2001-10-01), Ravenscroft et al.
patent: 6524403 (2003-02-01), Bartlett et al.
patent: 6740361 (2004-05-01), Bibber
patent: 6773516 (2004-08-01), Hardin et al.
patent: 2003/0079807 (2003-05-01), Ravenscroft et al.
patent: 2003/0230363 (2003-12-01), Sturgill et al.
patent: 53/016328 (1978-02-01), None
patent: 362180081 (1987-08-01), None
Derwent abstract of JP 53/016328, Feb. 1978.
English translation of JP53/016328, Feb. 1978.
Aldoa Technical Bulletin (undated)/Material Safety Data Sheet (Oct. 2001) for Aldokote BZN non chromium black on zinc/zinc-nickel alloy plating.
Aldoa Technical Bulletin (undated)/Material Safety Data Sheet (Jul. 2001) for Aldokote NCB non chromium black on zinc deposits.
Short et al. “An Investigation into the Oxidation State of Molybdenum in Simplified High Level Nuclear Waste Glass Compositions” (undated).

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3724092