Positive or negative developable photosensitive composition

Details Positive or negative developable photosensitive composition Positive or negative developable photosensitive composition

1972-11-20

1976-06-08

Klein, David

Gas separation: apparatus

Electric field separation apparatus

Electrode retaining or supporting means

96 364, 96 86P, 96 87R, 96 362, 96 33, 96115P, G03C 168

Patent

active

039619613

ABSTRACT:
A positive and negative developable photosensitive composition including a photopolymerizable monomer, photoinitiator, and a blend of polymers, one an acid soluble amino containing polymer, the other a compatible, acid insoluble, film-forming, polymer. The composition, which can be developed positively with dilute aqueous acid or negatively with dilute base, is useful in silk screen printing and as a photoresist composition in general.

REFERENCES:
patent: 3024180 (1962-03-01), McGraw
patent: 3427161 (1969-02-01), Laridon
patent: 3583940 (1971-06-01), Rao
patent: 3594175 (1971-07-01), Hay
patent: 3617278 (1971-11-01), Holstead

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