US4770987A
Expired / Lapsed
US
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Silver halide color photographic materials containing an antisain agent and a magenta coupler in lipophilic fine particles
Assignee: Fujifilm Corp
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Filing: 1986-12-17
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Granted: 1988-09-13
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Expires: 2006-12-17
Abstract
Abstract A silver halide color photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer having dispersed therein lipophilic fine particles containing an image dye forming lipophilic coupler, wherein the lipophilic fine particles further contain at least one lipophilic compound having a water-solubility of not more than 1% by weight at 25° C. and represented by formula (I): R.sub.0 SO.sub.2 X (I) wherein R 0 represents a substituted or unsubstituted alkyl, aryl or heterocyclic group having 8 or more total carbon atoms; and X represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, a nitrogen-containing organic base, ammonium or a group represented by formula (A): ##STR1## wherein R 1 represents a hydrogen atom or a substituted or unsubstituted alkyl, aryl or heterocyclic group; R 2 represents a hydrogen atom, a halogen atom or a substituted or unsubstituted alkyl, aryl, acyloxy or sulfonyl group; and R 3 represents a hydrogen atom or a hydrolyzable group. The material prevents stain formation on the non-color-developed areas due to aging and the like after processing.
Inventors
- 👤 Osamu Takahashi
- 👤 Hideaki Naruse
- 👤 Masakazu Morigaki
- 👤 Nobutaka Ohki
- 👤 Tadahisa Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:14
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/39236
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
156 words
A silver halide color photographic material comprising a support having provided thereon at least one silver halide emulsion layer having dispersed therein lipophilic fine particles containing an image dye forming lipophilic coupler and at least one lipophilic compound having a water-solubility of not more than 1% by weight at 25° C. and represented by formula (I): R.sub.O SO.sub.2 X (I) wherein R O represents a substituted or unsubstituted alkyl, aryl or heterocyclic group having 8 or more total carbon atoms; and X represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, a nitrogen-containing organic base, ammonium, or a group represented by formula (A): ##STR24## wherein R 1 represents a hydrogen atom or a substituted or unsubstituted alkyl, aryl or heterocyclic group; R 2 represents a hydrogen atom, a halogen atom or a substituted or unsubstituted alkyl, aryl, acyloxy or sulfonyl group; and R 3 represents a hydrogen atom or a hydrolyzable group.
Claim 2
Dependent Claim
156 words
A silver halide color photographic material comprising a support having provided thereon at least one silver halide emulsion layer having dispersed therein lipophilic fine particles containing an image dye forming lipophilic coupler and at least one lipophilic compound having a water-solubility of not more than 1% by weight at 25° C. and represented by formula (I): R.sub.O SO.sub.2 X (I) wherein R O represents a substituted or unsubstituted alkyl, aryl or heterocyclic group having 8 or more total carbon atoms; and X represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, a nitrogen-containing organic base, ammonium, or a group represented by formula (A): ##STR24## wherein R 1 represents a hydrogen atom or a substituted or unsubstituted alkyl, aryl or heterocyclic group; R 2 represents a hydrogen atom, a halogen atom or a substituted or unsubstituted alkyl, aryl, acyloxy or sulfonyl group; and R 3 represents a hydrogen atom or a hydrolyzable group.
Claim 3
Dependent Claim
34 words
The silver halide color photographic material as in claim 1, wherein said compound represented by formula (I) is present in an amount of from 1×10 -2 to 10 mol per mol of the coupler.
Claim 4
Dependent Claim
17 words
The silver halide color photographic material as in claim 1, wherein said coupler is a magenta coupler.
Claim 5
Dependent Claim
130 words
The silver halide color photographic material as in claim 3, wherein said magenta coupler is represented by formula (VIII): ##STR25## wherein R 11 represents a hydrogen atom or a substituent; X 1 represents a hydrogen atom or a group releasable upon coupling with an oxidation product of an aromatic primary amine developing agent; Za, Zb and Zc each represents a methine group, a substituted methine group, ═N-- or --NH--, wherein either the Za-Zb bond or the Zb-Zc bond is a double bond, with the other being a single bond; the Zb-Zc bond when representing a carbon-carbon double bond may form a part of an aromatic ring; R 11 , X 1 or the substituted methine group as represented by Za, Zb or Zc may form a polymer including a dimer.
Claim 6
Dependent Claim
24 words
The silver halide color photographic material as in claim 1, wherein the molecular weight of the compound of formula (I) is less than 1,000.
Claim 7
Dependent Claim
81 words
The silver halide color photographic material as in claim 1, wherein said lipophilic compound is represented by formula (I)-B: ##STR26## wherein A represents an atomic group forming an aromatic ring, inclusive of a heterocyclic ring, condensed to the benzene ring, wherein said aromatic ring or benzene ring is substituted or unsubstituted; M represents a hydrogen atom, an ammonium ion, an alkali metal ion, or alkaline earth metal ion; l represents 1 or 1; and SO 2 M is single or plural.
Claim 8
Dependent Claim
76 words
The silver halide color photographic material as in claim 1, wherein R 3 is a hydrolyzable group having the formula ##STR27## wherein R 4 represents a hydrogen atom, a substituted or unsubstituted straight or branched chain alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, an acyl group having from 2 to 20 carbon atoms, or an alkoxy group having 1 to 20 carbon atoms.
Claim 9
Dependent Claim
25 words
The silver halide color photographic material as in claim 1, wherein the lipophilic fine particles have an oil-coupler ratio from 0.00 to 2.0 by weight.
Claim 10
Dependent Claim
113 words
The silver halide color photographic material as in claim 4, wherein R 11 represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a heterocyclic group, a cyano group, an alkoxy group, an aryloxy group, a heterocyclic oxy group, an acyloxy group, a carbamoyloxy group, a silyloxy group, a sulfonyloxy group, an acylamino group, an anilino group, a ureido group, an imido group, a sulfamoylamino group, a carbamoylamino group, an alkylthio group, an arylthio group, a heterocyclic thio group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonamide group, a carbamoyl group, an acyl group, a sulfamoyl group, a sulfonyl group, a sulfinyl group, an alkoxycarbonyl group, or an aryloxycarbonyl group.
Claim 11
Dependent Claim
24 words
The silver halide color photographic material as in claim 4, comprising 1×10 -3 to 1 mol of magenta coupler per mole of silver halide.
Claim 12
Dependent Claim
17 words
The silver halide color photographic material as in claim 1, wherein said coupler is a cyan coupler.
Claim 13
Dependent Claim
17 words
The silver halide color photographic material as in claim 1, wherein said coupler is a yellow coupler.
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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) | 1991-09-13 | 1992-03-14 | 1992-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-13 | 1996-03-14 | 1996-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-13 | 2000-03-14 | 2000-09-13 | $7700.00 | Window Closed / Lapsed |