Silver halide development accelerators

Details Silver halide development accelerators Silver halide development accelerators

1980-02-06

1981-09-29

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

Process using lithographic infectious developer

430268, 430485, 430487, 430600, 430615, G03C 530

Patent

active

042923913

ABSTRACT:
Pyrazolo [3,4-d] pyrimidine, and derivatives thereof, can be added to either a silver halide emulsion, or to a hydroquinone (litho) developer to accelerate development and reduce the induction period.

REFERENCES:
patent: 2743180 (1956-04-01), Carroll
patent: 3161515 (1964-12-01), Welsh
patent: 3185570 (1965-05-01), Welsh
patent: 3554757 (1971-01-01), Kuwabara et al.
patent: 3782945 (1974-01-01), Shimamura et al.
patent: 3785822 (1974-01-01), Overman
patent: 3899331 (1975-08-01), Bloom et al.
patent: 3969117 (1976-07-01), Sakai et al.

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