Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1998-04-16
2000-02-08
Huff, Mark F.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430567, 430635, 430637, 430638, 430642, G03C 1015, G03C 1035, G03C 1043, G03C 1047, G03C 1053
Patent
active
060226811
ABSTRACT:
A method for producing a light-sensitive silver halide photographic emulsion is disclosed, comprising (a) a step of forming silver halide grain nuclei containing twin grain nuclei in a dispersion medium solution, (b) a step of ripening said grain nuclei to preferentially remain tabular grain nuclei, and (c) a step of growing said tabular grain nuclei into tabular grains to form a tabular silver halide grain, wherein in step (a), a silver halide nucleus having a chloride content of 10 mol % or more based on the amount of silver contained in the nucleus is formed, and the tabular silver halide grain obtained through steps (a), (b) and (c) has a Br content of 50 mol % or more based on the total silver amount.
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Aldrich Handbook of Fine Chemicals, 1998-1999, pp T557-T563.
Hosoya Yoichi
Tuyuki Isao
Urabe Shigeharu
Yamanouchi Junichi
Fuji Photo Film Co. , Ltd.
Huff Mark F.
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