Patent EP0137722A2 successfully refreshed from Google Patents.
EP0137722A2
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EP
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Silver halide color photographic material
Assignee: Konica Minolta Inc
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Filing: 1984-09-06
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Granted: —
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Expires: 2004-09-06
Abstract
Abstract A silver halide color photographic material is disclosed which has a silver halide color photographic material having at least one silver halide emulsion layer on a support, the silver halide emulsion layer containing at least one magenta coupler of formula (1): wherein R 1 is a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, R 2 is a monovalent group; R 3 is an alkylene group; Y is a halogen atom or a hydroxy or alkyl group; Z is a group that can be eliminated by a coupling reaction with the oxidized product of a color developing agent; X is a direct bond or an alkylene group of 1 to 5 carbon atoms: m is 0 or an integer from 1 to 4; and n is 0 or an integer from 1 to 5 and a 1 least one non-color forming phenolic compound.
Inventors
- 👤 Katsunori Kato
- 👤 Satoshi Kawakatsu
- 👤 Kaoru Miyagi
- 👤 Noritaka Nakayama
- 👤 Kosaku Masuda
- 👤 Toshihiko Kimura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-10 02:31
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; G; G03; G03C; G03C7/00; G03C7/30; G03C7/3003; G03C7/3005; G03C7/3008; G03C7/301
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
137 words
A silver halide color photographic material having at least one silver halide emulsion layer on a support, the silver halide emulsion layer containing at least one magenta coupler of formula (I) wherein R I is a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; R 2 is a monovalent group; R 3 is an alkylene group; Y is a halogen atom or a hydroxy or alkyl group; Z is a group that can be eliminated by a coupling reaction with the oxidized product of a color developing agent; X is a direct bond or an alkylene group of 1 to 5 carbon atoms; m is 0 or an integer from 1 to 4 1 and n is 0 or an integer from 1 to 5 and at least one non-color forming phenolic compound.
Claim 2
Dependent Claim
137 words
A silver halide color photographic material having at least one silver halide emulsion layer on a support, the silver halide emulsion layer containing at least one magenta coupler of formula (I) wherein R I is a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; R 2 is a monovalent group; R 3 is an alkylene group; Y is a halogen atom or a hydroxy or alkyl group; Z is a group that can be eliminated by a coupling reaction with the oxidized product of a color developing agent; X is a direct bond or an alkylene group of 1 to 5 carbon atoms; m is 0 or an integer from 1 to 4 1 and n is 0 or an integer from 1 to 5 and at least one non-color forming phenolic compound.
Claim 3
Dependent Claim
30 words
A silver halide color photographic material according to Claim 1, wherein X is an alkylene group of the formula (̵ CH 2 )̵ 1 where 1 is 1 to 5.
Claim 4
Dependent Claim
27 words
A silver halide color photographic material according to Claim 1 or 2, wherein R 2 is a halogen atom or an alkoxy, alkyl, nitro or cyano group.
Claim 5
Dependent Claim
27 words
A silver halide color photographic material according to any one of the preceding claims, wherein R 1 is an alkyl group of 1 to 8 carbon atoms.
Claim 6
Dependent Claim
80 words
A silver halide color photographic material according to any one of the preceding claims,wherein the non-color forming phenolic compound is represented by formula (II): wherein R 4 and R 5 , which may be identical or different, are each a halogen atom, an alkyl group, a cycloalkyl group or an alkoxy group; and k is 0 or an integer from 1 to 4, provided that when k is 2 or more, R 5 may be the same or different groups.
Claim 7
Dependent Claim
16 words
A silver halide color photographic material according to Claim 5, wherein k is 0 or 1.
Claim 8
Dependent Claim
27 words
A silver halide color photographic material according to Claim 5 or 6, wherein R 4 and R 5 are alkyl groups of 1 to 20 carbon atoms.
Claim 9
Dependent Claim
25 words
A silver halide color photographic material according to Claim 7, wherein R 4 and R 5 are alkyl groups of 1 to 10 carbon atoms.
Claim 10
Dependent Claim
26 words
A silver halide color photographic material according to any one of Claims 5 to 8, wherein the non-color forming phenolic compound is one specifically identified herein.
Claim 11
Dependent Claim
25 words
A silver halide color photographic material according to any one of the preceding claims, wherein the magenta coupler is one specifically identified in the description.
References Cited (Backward Citations)
No citation records indexed.
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