Plating on plastics by softening with trichloroethylene and meth

Details Plating on plastics by softening with trichloroethylene and meth Plating on plastics by softening with trichloroethylene and meth

1980-04-03

1981-07-28

Smith, John D.

Coating processes

Solid particles or fibers applied

Uniting particles to form continuous coating with...

156668, 204 30, 204 38B, 427192, 427205, 427306, 427307, 427331, 4273831, 4274301, 427436, 427422, 427421, C23C 300, C23C 700, C25D 556

Patent

active

042810345

ABSTRACT:
An article fabricated from a resin (e.g. ABS, polycarbonates, polyethylenes, polyaryl ether, or polypropylene of platable grades) susceptible to softening when contacted with trichloroethylene or a mixture of trichloroethylene and methylene chloride is dipped into an alkaline detergent, rinsed, and immersed in an agitated bath (by volume, 90 parts of trichloroethylene, 9 to 10 parts of ethanol, and 0 to 1 part of methylene chloride--1 part of methylene chloride if the resin is polypropylene) to which copper or nickel has been added as a powder (50 to 150 microns, 200 to 250 grams per liter) whereupon the article is drained, dipped in an agitated bath of similar composition, and dried. Alternatively, the powder may be sprayed onto the article, after the article has been immersed in such a bath. Next, the article may be dipped in dilute nitric acid, rinsed and immersed in a non-catalytic bath for deposition of nickel.

REFERENCES:
patent: 3466229 (1969-09-01), Whitacre
patent: 3524754 (1970-08-01), Blytas
patent: 3647512 (1970-07-01), Grunwald
patent: 3650708 (1970-03-01), Gallagher
patent: 3754976 (1973-08-01), Babecki
patent: 4078097 (1978-03-01), Miller
Goldman, "Electroplating", Modern Plastics Encyclopedia 1979-1980, vol. 56, No. 10A, McGraw-Hill Inc. N.Y., Oct. 1979 pp. 436-437.
Himler et al., "Preparing Plastics for Plating" SPE Journal, vol. 29, Jun. 1973 pp. 57-60.
Stefanides, "Electroplated ABS Parts", Design News, Mar. 3, 1965.
"Electroplating the `Unplatables`," Modern Plastics, Nov. 1967, pp. 98-101.
MacNeill et al., "Plated Plastic Parts", Materials in Design Engineering, Nov. 1962 pp. 122-125.
Pinkerton, "Preparing Nonconductors for Electroplating" Chapter 28 in F. A. Lowenheim, Editor, Modern Electroplating, 2nd Edition, .COPYRGT.1963, pp. 604-617.
Saubestre, "Plating on Nonconductors", Chapter 28 in F. A. Lowenheim, editor, Modern Electroplating, 3rd edition .COPYRGT.1974, pp. 636-655.
Narcus, Metallizing of Plastics, Reinhold Publishing Corporation N. Y. .COPYRGT.1960 pp. 148-159.
Blumentri; H. et al., "Coatings for Rigid Thermoplastic Substrates" IBM Technical Disclosure Bulletin, 13, No. 7, Dec. 1970.

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