Substituted pyrazolo[3, 2-c]-s-triazole photographic couplers an

Details Substituted pyrazolo[3, 2-c]-s-triazole photographic couplers an Substituted pyrazolo[3, 2-c]-s-triazole photographic couplers an

1987-12-03

1988-10-11

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430387, 430558, G03C 736, G03C 738

Patent

active

047771216

ABSTRACT:
Pyrazolo[3,2-c]-s-triazole dye-forming couplers containing in the 6-position a substituted or unsubstituted tertiary alkyl group and in the 3-position a substituted or unsubstituted aryl group in photographic materials and processes provide dyes of improved light stability. These couplers are particularly useful in combination with alkoxybenzene dye image stabilizers.

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Research Disclosure, Aug. 1974, Item No. 12443.
Research Disclosure, Dec. 1978, Item No. 17643.

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