Process for preparing a silver halide emulsion

Details Process for preparing a silver halide emulsion Process for preparing a silver halide emulsion

1992-02-10

1993-06-01

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, 430627, G03C 1005, G03C 104

Patent

active

052158799

ABSTRACT:
A silver halide photographic emulsion containing silver halide twinned-crystal grains is prepared by the steps of (a) forming silver halide nuclear grains by mixing a water soluble silver salt and a water soluble halide, (b) forming silver halide seed-emulsion grains by carrying out ripening of the nuclear grains formed in (a), and (c) growing the seed-emulsion grains, wherein a water soluble polymer is introduced by (b), having the repetition unit represented by the following formula [P] in an amount of 10 to 100 mol % per each polymer molecule: ##STR1##

REFERENCES:
patent: 3799781 (1974-03-01), Fitzgerald
patent: 4131471 (1978-12-01), Fitzgerald
patent: 4152161 (1979-05-01), Idel et al.
patent: 4386156 (1983-05-01), Mignot
patent: 4713323 (1987-12-01), Maskasky
patent: 4798775 (1989-01-01), Yagi et al.

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