Stripper composition

Details Stripper composition Stripper composition

1974-08-16

1976-09-14

Weinblatt, Mayer

Compositions

Fluent dielectric

N-containing

252156, 252153, 252DIG8, 134 38, 134 40, C11D 333

Patent

active

039805875

ABSTRACT:
An aqueous solution for alkaline stripping of metallic surfaces having a resist coating on at least a portion of the surface thereof, the resist coating normally being based upon polyvinyl chloride, such as polyvinyl chloride contained in a base emulsion for a photo resist material. The alkaline stripper solution is based upon a mixture of potassium hydroxide and ammonium hydroxide, together with a chelating agent consisting of the sodium salts of ethylenediaminetetraacetic acid, acetic acid, and ethylene glycol monobutyl ether.

REFERENCES:
patent: 2662837 (1953-12-01), Duncan
patent: 3080262 (1963-03-01), Newman
patent: 3391084 (1968-07-01), York
patent: 3551204 (1970-12-01), Bolger et al.
patent: 3553143 (1971-01-01), Bauer
patent: 3839234 (1974-10-01), Roscoe

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