Precious metal sensitizing solutions

Details Precious metal sensitizing solutions Precious metal sensitizing solutions

1974-12-11

1976-07-13

Esposito, Michael F.

Coating processes

With pretreatment of the base

Preapplied reactant or reaction promoter or hardener

427 97, 427304, 427306, B05D 304, B05D 310

Patent

active

039695549

ABSTRACT:
Sensitizing solutions for rendering surfaces receptive to the deposition of adherent electroless metal comprising a precious metal and a stoichiometric excess of a Group IV metal which is capable of two valence states are stabilized against precious metal separation by adding a Lewis Base, e.g., hydroquinone or hydroxylamine. Processes for rendering surfaces receptive to the deposition of an electroless metal are also provided in which there are employed the stabilized sensitizing solutions.

REFERENCES:
patent: 3627558 (1971-12-01), Roger
patent: 3698919 (1972-10-01), Kuzmik

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