Patent US4892807A successfully refreshed from Google Patents.
US4892807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic light-sensitive material excellent in treatment stability
Assignee: Konica Minolta Inc
•
Filing: 1987-07-29
•
Granted: 1990-01-09
•
Expires: 2007-07-29
Abstract
Abstract A color photographic material is disclosed, which is improved in the preservability of the dye image and in the resistance to the pH fluctuation or the contamination with bleach-fixer of the color developer. The photographic light-sensitive material comprising a support having thereon photographic component layers comprising a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer containing silver halide grains each comprising not less than 90 mol % of silver chloride, a compound represented by the following formula [S] and a cyan coupler represented by the following formula [I]. ##STR1##
Inventors
- 👤 Shigeto Hirabayashi
- 👤 Hirokazu Sato
- 👤 Eiichi Sakamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:04
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/34; G03C7/392; G03C7/39208; G03C7/3924; G03C7/39244; G03C7/3926
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
243 words
A silver halide photographic light-sensitive material comprising a support having thereon photographic component layers comprising a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, wherein said red-sensitive silver halide emulsion layer contains silver halide grains comprising not less than 90 mol % of silver chloride, a compound represented by the following formula [S] and a cyan coupler represented by the following formula [I]: ##STR132## wherein Ar is an arylene group or a cycloalkylene group; R A is an alkyl group, an alkoxy group, a carboxyl group or its salt, a sulfo group or its salt, a hydroxyl group, an amino group, an acylamino group, a ##STR133## group, an --NHSO 2 R" group or an ##STR134## group, R' and R" being a hydrogen atom an alkyl group or an aryl group, respectively, and M is a hydrogen atom, an alkali metal atom or an ammonium group; ##STR135## wherein R 1 is an alkyl group or an aryl group; R 2 is an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R 3 is a hydrogen atom, a halogen atom, an alkyl group or a alkoxy group, R 3 and R 1 being allowed to form a ring by coupling with R 1 ; Z represent a hydrogen atom or a group capable of being splitted off upon reaction with the oxidized product of an aromatic primary amine color developing agent.
Claim 2
Dependent Claim
243 words
A silver halide photographic light-sensitive material comprising a support having thereon photographic component layers comprising a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, wherein said red-sensitive silver halide emulsion layer contains silver halide grains comprising not less than 90 mol % of silver chloride, a compound represented by the following formula [S] and a cyan coupler represented by the following formula [I]: ##STR132## wherein Ar is an arylene group or a cycloalkylene group; R A is an alkyl group, an alkoxy group, a carboxyl group or its salt, a sulfo group or its salt, a hydroxyl group, an amino group, an acylamino group, a ##STR133## group, an --NHSO 2 R" group or an ##STR134## group, R' and R" being a hydrogen atom an alkyl group or an aryl group, respectively, and M is a hydrogen atom, an alkali metal atom or an ammonium group; ##STR135## wherein R 1 is an alkyl group or an aryl group; R 2 is an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R 3 is a hydrogen atom, a halogen atom, an alkyl group or a alkoxy group, R 3 and R 1 being allowed to form a ring by coupling with R 1 ; Z represent a hydrogen atom or a group capable of being splitted off upon reaction with the oxidized product of an aromatic primary amine color developing agent.
Claim 3
Dependent Claim
30 words
The silver halide photographic light-sensitive material of claim 1, wherein said silver halide grains are essentially consisting of silver chlorobromide containing from 0.1 to 1 mol % of silver bromide.
Claim 4
Dependent Claim
50 words
The silver halide photographic light-sensitive material of claim 1, wherein said red-sensitive emulsion layer contains said silver halide grains comprising not less than 90 mol % of silver chloride in an proportion of at least 60% by weight to the total weight of silver halide contained in said emulsion layer.
Claim 5
Dependent Claim
49 words
The silver halide photographic light-sensitive material of claim 3, wherein said red-sensitive emulsion layer contains said silver halide grains comprising not less than 90 mol % of silver chloride in an proportion of at least 80% by weight to the total weight of silver halide contained in said layer.
Claim 6
Dependent Claim
20 words
The silver halide photographic light-sensitive material of claim 1, wherein said red-sensitive silver halide emulsion layer contains a gold compound.
Claim 7
Dependent Claim
47 words
The silver halide photographic light-sensitive material of claim 1, wherein said red-sensitive silver halid emulsion layer contains said compound represented by the formula [S] in an amount of from 1×10 -6 to 1×10 -1 mol per mol of silver halide contained in said silver halide photographic layer.
Claim 8
Dependent Claim
47 words
The silver halide photographic light-sensitive material of claim 6, wherein said red-sensitive silver halide emulsion layer contains said compound represented by the formula [S] in an amount of from 1×10 -5 to 1×10 -2 mol per moI of silver halide contained in said silver halide photographic layer.
Claim 9
Dependent Claim
109 words
The silver halide photographic light-sensitive material of claim 1, wherein said coupler represented by the formula [I] is selected from the couplers represented by the following formula [I']: ##STR136## wherein R 4 is a phenyl group; R 5 is an alkyl group or an aryl group; R 6 is an alylene group; R 7 is a hydrogen atom or a halogen atom; n is 0 or a positive integer; X is --O--, --CO--, --COO--, --OCO--, --SO 2 NR--, NR'SO 2 --, NR"--, --S--, --SO-- or --SO 2 --, in which R' and R" are each an alkyl group; and Z is the same as described in the formula [I].
Claim 10
Dependent Claim
160 words
The silver halide photographic light-sensitive material of claim 1, wherein said red-sensitive silver halide emulsion layers is hardened by a compound represented by the following formula [HDA] or [HDB]: ##STR137## wherein Rd 1 is a chlorine atom, a hydroxyl group, an alkyl group, an alkylthio group, an --OM group, M being a monovalent metal atom, an --NRd'Rd", Rd' and Rd" being a hydrogen atom, an alkyl group or an aryl group, respectively, or an --NHCORd'" group, R'" being a hydrogen atom, an alkyl group or an aryl group; Rd 2 is the same as Rd 1 except chlorine atom; ##STR138## wherein RD 3 and Rd 4 are a chlorine atom, a hydroxyl group, an alkoxy group, or an --OM group, M being a monovalent metal atom, respectively; Q and Q' are a bonding group represented by a --O--, --S-- or --NH--, respectively; L is an alkylene group or an arylene group and p and q are 0 or 1, respectively.
References Cited (Backward Citations)
FR1492132A
Cited
US4418140A
Cited
US4399215A
Cited
US4448878A
Cited
US4564591A
Cited
US4528263A
Cited
US4434225A
Cited
EP0122125A1
Cited
US4626498A
Cited
US4607004A
Cited
US4590155A
Cited
US4596764A
Cited
US4611441A
Cited
US4737451A
Cited
US4784938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-08 | 1993-07-10 | 1994-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-08 | 1997-07-10 | 1998-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-08 | 2001-07-10 | 2002-01-09 | $7700.00 | Window Closed / Lapsed |