Process for treating plastics with alkaline permanganate solutio

Details Process for treating plastics with alkaline permanganate solutio Process for treating plastics with alkaline permanganate solutio

1985-10-28

1986-12-16

Smith, John D.

Coating processes

Pretreatment, per se, or post-treatment, per se

156635, 156642, 156668, 427 98, 427306, 427307, C23C 1822

Patent

active

046296360

ABSTRACT:
An improved alkaline permanganate composition for etching printed circuit boards is provided by incorporating a secondary oxidant in the solution capable of oxidizing manganate ion to permanganate ion.

REFERENCES:
patent: 3652351 (1972-03-01), Guisti
patent: 4042729 (1977-08-01), Polichette
patent: 4073740 (1978-02-01), Polichette
patent: 4425380 (1984-01-01), Nuzzi

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