Process for treating plastics with alkaline permanganate solutio

Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge

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204292, C25B 1104

Patent

active

048593001

ABSTRACT:
The permanganate process for treating plastics, e.g., printed circuit boards, to enhance the adhesion of metal plating to the plastic is improved by employing electrolysis to either maintain a certain permanganate level in the operating bath or to regenerate a spent or used bath.

REFERENCES:
patent: 3927177 (1975-12-01), Okabe et al.
patent: 4085191 (1978-04-01), Mein et al.
patent: 4107023 (1978-08-01), Mentz
patent: 4427498 (1984-01-01), Wagner

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