Photographic material and process comprising a pyrazoloazole dye

Details Photographic material and process comprising a pyrazoloazole dye Photographic material and process comprising a pyrazoloazole dye

1988-10-31

1990-08-14

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430546, G03C 738

Patent

active

049487221

ABSTRACT:
Novel pyrazoloazole dye-forming couplers comprising (I) at least one polyether group (A) comprising at least two ether (--O--) groups and (II) having between the group (A) and the pyrazoloazole nucleus a linking group (L) that is capable of increasing the reactivity of the coupler to enable improved dye images in a photographic element and process. These couplers are useful in photographic silver halide elements and processes.

REFERENCES:
patent: 4443536 (1984-04-01), Lestina
patent: 4514490 (1985-04-01), Seto et al.
patent: 4540654 (1985-09-01), Sato et al.
patent: 4639413 (1987-01-01), Kawagishi et al.
patent: 4639415 (1987-01-01), Kaneko et al.
patent: 4665015 (1987-05-01), Iijima et al.
patent: 4755455 (1988-07-01), Iwasa
Hackh's Chemical Dictionary, 4th ed, J. Grant, p. 534.
Research Disclosure, Item No. 12443, Aug. 1974; Research Disclosure, Kenneth Mason Publications, Ltd., Hampshire, England.

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