US4095984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Development inhibitor releasing coupler and photographic element containing same
Assignee: Fujifilm Holdings Corp
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Filing: 1976-12-29
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Granted: 1978-06-20
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Expires: 1996-12-29
Abstract
Abstract A photographic coupler capable of releasing a development inhibitor upon reaction with an oxidation product of a color developing agent and represented by the following general formula (I) or (II) ##STR1## wherein A represents a coupler residue; Z represents a sulfur atom, a selenium atom or an oxygen atom; R 1 represents an aliphatic group; R 2 and R 3 , which may be the same or different, each represents a hydrogen atom, an aliphatic group, an alkoxy group, a hydroxy group, or an aromatic group, and R 2 and R 3 can combine and represent the atoms necessary to form a benzene ring or a naphthalene ring, ##STR2## wherein A represents a coupler residue; R 4 represents an aliphatic group or an aromatic group; and R 5 and R 6 which may be the same or different, each represents a hydrogen atom, an aliphatic group or an aromatic group; and silver halide photographic elements containing these photographic couplers. These photographic couplers are particularly useful for controlling or modifying a number of photographic characteristics such as sharpness, graininess and color quality in a multilayer color photographic material.
Inventors
- 👤 Tohru Sueyoshi
- 👤 Nobuo Furtachi
- 👤 Akio Okumura
- 👤 Tadao Shishido
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:23
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/44; C07D231/52; G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30541; G03C7/30558; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
198 words
A silver halide photographic element comprising a silver halide emulsion layer containing a photographic coupler capable of releasing a development inhibitor upon reaction with an oxidation product of a color developing agent and represented by the following general formula (I) ##STR13## wherein A represents a coupler residue substituted in the coupling off position with the benzotriazole moiety shown in the formula; Z represents a sulfur atom, a selenium atom or an oxygen atom; R 1 represents an aliphatic group; and R 2 and R 3 , which may be the same or different, each represents a hydrogen atom, an aliphatic group, an alkoxy group, a hydroxy group, or an aromatic group or R 2 and R 3 can combine and represent the atoms necessary to form a benzene ring or a naphthalene ring; or represented by the following heneral formula (II) ##STR14## wherein A represents a coupler residue substituted in the coupling off position with the benzotriazole moiety shown in the formula; R 4 represents an aliphatic group or an aromatic group; and R 5 and R 6 , which may be the same or different, each represents a hydrogen atom, an aliphatic group or an aromatic group.
Claim 2
Dependent Claim
198 words
A silver halide photographic element comprising a silver halide emulsion layer containing a photographic coupler capable of releasing a development inhibitor upon reaction with an oxidation product of a color developing agent and represented by the following general formula (I) ##STR13## wherein A represents a coupler residue substituted in the coupling off position with the benzotriazole moiety shown in the formula; Z represents a sulfur atom, a selenium atom or an oxygen atom; R 1 represents an aliphatic group; and R 2 and R 3 , which may be the same or different, each represents a hydrogen atom, an aliphatic group, an alkoxy group, a hydroxy group, or an aromatic group or R 2 and R 3 can combine and represent the atoms necessary to form a benzene ring or a naphthalene ring; or represented by the following heneral formula (II) ##STR14## wherein A represents a coupler residue substituted in the coupling off position with the benzotriazole moiety shown in the formula; R 4 represents an aliphatic group or an aromatic group; and R 5 and R 6 , which may be the same or different, each represents a hydrogen atom, an aliphatic group or an aromatic group.
Claim 3
Dependent Claim
45 words
The silver halide photographic element as claimed in claim 1, wherein said aliphatic group represented by R 2 is an unsubstituted alkyl group having 1 to 18 carbon atoms or a substituted alkyl group having 1 to 12 carbon atoms in the alkyl moiety thereof.
Claim 4
Dependent Claim
45 words
The silver halide photographic element as claimed in claim 1, wherein said aliphatic group represented by R 3 is an unsubstituted alkyl group having 1 to 18 carbon atoms or a substituted alkyl group having 1 to 12 carbon atoms in the alkyl moiety thereof.
Claim 5
Dependent Claim
25 words
The silver halide photographic element as claimed in claim 1, wherein said aromatic group represented by R 2 is a monocyclic or bicyclic aryl group.
Claim 6
Dependent Claim
25 words
The silver halide photographic element as claimed in claim 1, wherein said aromatic group represented by R 3 is a monocyclic or bicyclic aryl group.
Claim 7
Dependent Claim
24 words
The silver halide photographic element as claimed in claim 1, wherein said alkoxy group represented by R 2 has 1 to 18 carbon atoms.
Claim 8
Dependent Claim
24 words
The silver halide photographic element as claimed in claim 1, wherein said alkoxy group represented by R 3 has 1 to 18 carbon atoms.
Claim 9
Dependent Claim
20 words
The silver halide photographic element as claimed in claim 1, wherein R 2 and R 3 form a benzene ring.
Claim 10
Dependent Claim
16 words
The silver halide photographic element as claimed in claim 8, wherein Z represents a sulfur atom.
Claim 11
Dependent Claim
80 words
The silver halide photographic element as claimed in claim 1, wherein said coupler is represented by the following formula ##STR15## wherein A and R 1 each has the same meaning as in claim 1; R 7 and R 8 , which may be the same or different, each represents a hydrogen atom, a halogen atom, an aliphatic group, an alkoxy group, a hydroxy group, a nitro group, a carboxyl group, an alkoxycarbonyl group, an acylamino group or a sulfonamido group.
Claim 12
Dependent Claim
38 words
The silver halide photographic element as claimed in claim 10, wherein said aliphatic group represented by R 1 is an alkyl group having 1 to 18 carbon atoms or an aralkyl group having 7 to 16 carbon atoms.
Claim 13
Dependent Claim
41 words
The silver halide photographic element as claimed in claim 10, wherein R 7 and R 8 , each represents a hydrogen atom, a chlorine atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group or a hydroxy group.
Claim 14
Dependent Claim
110 words
The silver halide photographic element as claimed in claim 10, wherein A is represented by the following general formula (III) ##STR16## wherein R 9 represents a hydroxy group, an alkyl group, an aryl group, an amino group, a carbonamido group, a sulfonamido group, a ureido group or an alkoxy group; R 10 represents a hydrogen atom, an alkyl group, an aryl group, or a 5- or 6-membered heterocyclic group containing one or more of a nitrogen or an oxygen atom; or is represented by the general formula (IV) ##STR17## wherein R 11 represents an alkyl group, an aryl group or an amino group; and R 12 represents an aryl group.
Claim 15
Dependent Claim
70 words
The silver halide photographic element as claimed in claim 13, wherein R 9 represents a hydroxy group, has up to 22 carbon atoms and represents an alkoxy group, an alkyl group, an alkylamino group or an alkylcarbonamido group, or has 6 to 32 carbon atoms and represents an aryl group, an arylamino group or an arylcarbonamido group; and R 10 represents an aryl group having 6 to 32 carbon atoms.
Claim 16
Dependent Claim
49 words
The silver halide photographic element as claimed in claim 13, wherein R 11 represents a tertiary alkyl group having 4 to 18 carbon atoms or a monocyclic aryl group having 6 to 40 carbon atoms; and R 12 represents a monocyclic aryl group having 6 to 40 carbon atoms.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |