Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1994-06-14
1995-12-26
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430569, 430604, 430605, 430612, 430627, 430629, 430630, G03C 109, G03C 104
Patent
active
054787157
ABSTRACT:
A silver halide photographic material comprising a support and a silver halide emulsion layer provided thereon. The silver halide emulsion is prepared by nuclear formation, crystal growth and chemical sensitization. All or a part of the nuclear formation or the crystal growth is conducted in the presence of a hexa-coordinated cyano-complex to introduce the complex into crystal lattice of the silver halide. The density of the hexa-coordinated cyano-complex contained in surface parts of silver halide grains is in the range of 10.sup.-4 to 10.sup.-2 mol per 1 mol of silver. The surface parts of silver halide grains has a thickness of not more than 20.ANG. from the surfaces of the grains. The chemical sensitization is conducted using a gold sensitizer. The silver halide emulsion is prepared using a synthetic polymer as a protective colloid in place of gelatin. In the cases in which gelatin is used, it is present in an amount of not more than 10 g per 1 mol of silver.
REFERENCES:
patent: 3690888 (1972-09-01), Bacon et al.
patent: 3861918 (1975-01-01), Fitzgerald
patent: 3879205 (1975-04-01), Fitzgerald et al.
patent: 4022623 (1977-05-01), Fitzgerald et al.
patent: 4120727 (1978-10-01), Fitzgerald
patent: 4131471 (1978-12-01), Fitzgerald
patent: 4315071 (1982-02-01), Fitzgerald
patent: 4879208 (1989-11-01), Urabe
patent: 4937180 (1990-06-01), Marchetti et al.
patent: 5112732 (1992-05-01), Hayashi et al.
patent: 5132203 (1992-07-01), Bell et al.
patent: 5204234 (1993-04-01), Asami
Ikari Shinji
Ohzeki Tomoyuki
Bowers Jr. Charles L.
Fuji Photo Film Co. , Ltd.
Huff Mark F.
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