Method for depositing a metal layer on polyesters

Details Method for depositing a metal layer on polyesters Method for depositing a metal layer on polyesters

1982-07-09

1984-04-03

Smith, John D.

Coating processes

Electrical product produced

Welding electrode

427 98, 427306, C23C 302

Patent

active

044408013

ABSTRACT:
A method for selective electroless deposition of a metal (Cu, Ni, Au, Ag) onto a polyester substrate, such as poly(ethylene terephthalate) is described. A combination of ultraviolet exposure of wavelengths <220 nm and a pre-treatment step is used to obtain selective electroless deposition. The polyester layer is first irradiated with uv light of wavelengths <220 nm and is then subjected to a pre-plating pre-treatment with a basic solution. After this, the desired metal is deposited by conventional electroless deposition. Substantial deposition will occur only in those areas which were both exposed to the uv light and subjected to the pre-plating treatment.

REFERENCES:
patent: 3394023 (1968-07-01), Wilhelm
patent: 3436468 (1969-04-01), Haberecht
patent: 3801478 (1974-04-01), Heger
patent: 3953658 (1976-04-01), Brandt
patent: 4042730 (1977-08-01), Cohen et al.
patent: 4165394 (1979-08-01), Ehrbar
patent: 4229523 (1980-10-01), Ohta
patent: 4239789 (1980-12-01), Blum
patent: 4268536 (1981-05-01), Beckenbaugh et al.
Feldstein, "Selective Electroless Plating Techniques: A Survey" Plating, Aug. 1970.

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