Radiation imagery chemistry: process – composition – or product th – Silver halide colloid tanning process – composition – or product
Patent
1989-05-03
1990-10-02
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Silver halide colloid tanning process, composition, or product
430598, 430599, 430600, 430613, 430949, G03C 106
Patent
active
049606727
ABSTRACT:
A silver halide photographic material is disclosed, comprising a support having thereon at least one of silver halide photographic emulsion layers and other hydrophilic colloidal layers, wherein said photographic emulsion layers or other hydrophilic colloidal layers contain a compound represented by formula (I): ##STR1## wherein at least one of A.sub.1 and A.sub.2 represents a hydrogen atom and the other represents a hydrogen atom, a sulfinic residual group, or ##STR2## wherein R.sub.0 represents an alkyl group, alkenyl group, aryl group, alkoxy group or aryloxy group, and l.sub.1 represents an integer 1 or 2; G represents ##STR3## wherein m.sub.1 represents an integer 1 or 2, sulfonyl group, sulfoxy group, ##STR4## wherein R.sub.1 represents an alkoxy group or aryloxy group, a thiocarbonyl group or iminomethylene group; X represents an aliphatic group, aromatic group or heterocyclic group, substituted by formula (a): ##STR5## wherein Y represents a hydrogen atom, aliphatic group, an aromatic group or heterocyclic group, and Ra represents a hydrogen atom, aliphatic group or aromatic group; and R represents a group represented by formula (b): ##STR6## wherein R.sub.b.sup.1 to R.sub.b.sup.4 are the same or different and each represents a hydrogen atom, aliphatic group or aromatic group, B represents a suitable atomic group for forming a 5- or 6-membered ring; Z represents a group capable of making a nucleophilic attach on G to separate --G--R portion form the other portion of the molecule; m.sub.b represents an integer of 0 or 1; n.sub.b represents an integer of 1 when Z is a hydroxy group, or n.sub.b represents 0 or 1 when Z is otherwise; and (m.sub.b +n.sub.b) represents an integer of 1 or 2, with the proviso that the sum of the number of carbon atoms contained in X, G and R is 17 or more.
REFERENCES:
patent: 4798780 (1989-01-01), Hall et al.
Katoh Kazunobu
Okada Hisashi
Chea Thorp
Fuji Photo Film Co. , Ltd.
Michl Paul R.
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