Patent US5270158A successfully refreshed from Google Patents.
US5270158A
Expired / Lapsed
US
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Light-sensitive silver halide color photographic material
Assignee: Konica Minolta Inc
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Filing: 1992-05-26
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Granted: 1993-12-14
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Expires: 2012-05-26
Abstract
Abstract A light-sensitive silver halide color photographic material is disclosed. The light-sensitive material comprises a support and a silver halide emulsion layer and a non-light-sensitive hydrophilic colloid layer provided on the support. The emulsion layer comprises a mixture of at least two kinds of silver halide emulsions which different from each other in sensitivity. The emulsion layer contains a magenta coupler represented by Formula II and the non-light-sensitive layer contains a compound represented by formula II: ##STR1## wherein Ar is an aryl group; Y is a hydrogen atom or a substituent capable of releasing upon reaction with the oxidation product of a color developing agent; X is a halogen atom, an alkoxy group or an alkyl group; n is an integer of 0 to 4, Xs are the same or different when n is 2 or more; R is a strait chain or branched alkyl group having 1 to 20 carbon atoms, ##STR2## wherein R 1 and R 2 are each a secondary tertiary alkyl group, provided the total number of carbon atoms contained in R 1 and R 2 are 20 or more.
Inventors
- 👤 Hiroshi Nakatsugawa
- 👤 Takaaki Kojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:26
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
221 words
A light-sensitive silver halide color photographic material comprising a support having thereon a blue sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a red-sensitive silver halide emulsion layer and a non-light-sensitive hydrophilic colloid layer, wherein said green-sensitive silver halide emulsion layer comprises a silver halide emulsion layer and a non-light-sensitive hydrophilic colloid layer, wherein said silver halide emulsion layer comprises a mixture of at least two kinds of silver halide emulsions different insensitivity from each other and contains a magenta dye forming coupler represented by Formula I and said non-light-sensitive layer contains a compound represented by Formula II: ##STR53## wherein Ar is an aryl group; Y is a hydrogen atom or a substituent capable of releasing hydrogen upon reaction with the oxidation product of a color developing agent; X is a halogen atom, an alkoxyl group or an alkyl group; n is an integer of 0 to 4, the X's may be the same or different when n is 2 or more; R is a straight chain or branched alkyl group having 1 to 20 carbon atoms, and J is straight or branched chain alkenylene, ##STR54## wherein R 1 and R 2 are each a secondary or tertiary alkyl group, provided the total number of carbon atoms contained in R 1 and R 2 is at least 20.
Claim 2
Dependent Claim
221 words
A light-sensitive silver halide color photographic material comprising a support having thereon a blue sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a red-sensitive silver halide emulsion layer and a non-light-sensitive hydrophilic colloid layer, wherein said green-sensitive silver halide emulsion layer comprises a silver halide emulsion layer and a non-light-sensitive hydrophilic colloid layer, wherein said silver halide emulsion layer comprises a mixture of at least two kinds of silver halide emulsions different insensitivity from each other and contains a magenta dye forming coupler represented by Formula I and said non-light-sensitive layer contains a compound represented by Formula II: ##STR53## wherein Ar is an aryl group; Y is a hydrogen atom or a substituent capable of releasing hydrogen upon reaction with the oxidation product of a color developing agent; X is a halogen atom, an alkoxyl group or an alkyl group; n is an integer of 0 to 4, the X's may be the same or different when n is 2 or more; R is a straight chain or branched alkyl group having 1 to 20 carbon atoms, and J is straight or branched chain alkenylene, ##STR54## wherein R 1 and R 2 are each a secondary or tertiary alkyl group, provided the total number of carbon atoms contained in R 1 and R 2 is at least 20.
Claim 3
Dependent Claim
38 words
The light-sensitive material of claim 1, wherein said magenta coupler contained in said silver halide emulsion layer in an amount of from 1×10 -3 to 1 mol per mol of silver contained in said silver halide emulsion layer.
Claim 4
Dependent Claim
39 words
The light-sensitive material of claim 2, wherein said magenta coupler contained in said silver halide emulsion layer in an amount of from 1×10 -2 to 8×10 -1 moles per mol of silver contained in said silver halide emulsion layer.
Claim 5
Dependent Claim
40 words
The light-sensitive material of claim 1, wherein a difference in sensitivity between said two kinds of silver halide emulsion is 0.06 to 0.61 in terms of logE, wherein E is an exposure amount necessary to form a density of 0.8.
Claim 6
Dependent Claim
26 words
The light-sensitive material of claim 4, wherein difference in sensitivity between said two kinds of silver halide emulsion is 0.10 to 0.51 in terms of logE.
Claim 7
Dependent Claim
28 words
The light-sensitive material of claim 1, wherein said silver halide emulsions each comprises silver halide grains having a silver chloride content of not less than 90 mol %.
Claim 8
Dependent Claim
28 words
The light-sensitive material of claim 6, wherein said silver halide emulsions each comprises silver halide grains having a silver chloride content of not less than 99 mol %.
Claim 9
Dependent Claim
31 words
The light-sensitive material of claim 1, wherein said compound represented by Formula II is contained in said non-light-sensitive layer in an amount of 0.01 g to 0.5 g per square meter.
Claim 10
Dependent Claim
25 words
The light-sensitive material of claim 1, wherein said non-light-sensitive material containing said compound represented by Formula II is adjecent to said silver halide emulsion layer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-12-13 | 1997-06-14 | 1997-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-13 | 2001-06-14 | 2001-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-13 | 2005-06-14 | 2005-12-14 | $7700.00 | Window Closed / Lapsed |