Light-sensitive negative-working film containing a diazo oxide s

Details Light-sensitive negative-working film containing a diazo oxide s Light-sensitive negative-working film containing a diazo oxide s

1976-11-01

1978-08-22

Louie, Jr., Won H.

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

96 91D, 96 49, G03C 152

Patent

active

041086643

ABSTRACT:
An improved light-sensitive negative-working diazo type film is described. The film includes a diazo-oxide sensitizer and an additive therefore which improves the actinic opacity of the image formed during the diazo process. The additive operates by reacting with the azo dye formed in the image areas. An example of such an additive is a sulfonic acid halide.

REFERENCES:
patent: 2034508 (1936-03-01), de Boer et al.
patent: 3039872 (1962-06-01), DE Boer et al.
patent: 3139341 (1964-06-01), Schlesinger
patent: 3775113 (1973-11-01), Bonham et al.

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