US4857449A
Expired / Lapsed
US
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Silver halide color photographic photosensitive materials
Assignee: Fujifilm Holdings Corp
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Filing: 1988-02-23
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Granted: 1989-08-15
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Expires: 2008-02-23
Abstract
Abstract A silver halide color photosensitive material comprising, on a support, at least one silver halide photographic emulsion layer comprising an emulsified dispersion of fine lipophilic particles comprising at least one type of oil-soluble coupler which is non-diffusible and which forms a dye by coupling with the oxidized form of a primary aromatic amine color developing agent and at least one type of high boiling point organic solvent, said emulsified dispersion of fine lipophilic particles comprises a dispersion obtained by emulsifying and dispersing a mixed solution which comprises at least one type of coupler, and at least one type of high boiling point organic solvent as mentioned above, and at least one type of homopolymer or copolymer which is water-insoluble and soluble in organic solvent, and which comprises at least one type of repeating unit which does not have acid groups on the main chain or on a side chain, and said silver halide emulsion comprises a monodispersed silver chloride, silver chlorobromide or silver bromide emulsion, containing essentially no silver iodide, and of which the (100) plane has, in the main, been enclosed.
Inventors
- 👤 Tadashi Ogawa
- 👤 Osamu Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:37
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/388; G03C7/3882; G03C1/00; G03C1/005; G03C7/392; G03C7/396
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
183 words
A silver halide color photographic photosensitive material comprising on a support, at least one silver halide photographic emulsion layer comprising an emulsified dispersion of fine lipophilic particles comprising at least one type of oil-soluble coupler which is nondiffusible and which forms a dye by coupling with the oxidized form of a primary aromatic amine color developing agent and at least one type of high boiling point organic solvent, said emulsified dispersion of fine lipophilic particles comprises a dispersion obtained by emulsifying and dispersing a mixed solution which comprises at least one type of coupler, and at least one type of high boiling point organic solvent as mentioned above, and at least one type of homopolymer or copolymer which is water-insoluble and soluble in organic solvent and which comprises at least one type of repeating unit which does not have acid groups on the main chain or on a side chain, and said silver halide emulsion comprises a monodispersed silver chloride, silver chlorobromide or silver bromide emulsion, containing essentially no silver iodide and of which the (100) plane has, in the main, been enclosed.
Claim 2
Dependent Claim
183 words
A silver halide color photographic photosensitive material comprising on a support, at least one silver halide photographic emulsion layer comprising an emulsified dispersion of fine lipophilic particles comprising at least one type of oil-soluble coupler which is nondiffusible and which forms a dye by coupling with the oxidized form of a primary aromatic amine color developing agent and at least one type of high boiling point organic solvent, said emulsified dispersion of fine lipophilic particles comprises a dispersion obtained by emulsifying and dispersing a mixed solution which comprises at least one type of coupler, and at least one type of high boiling point organic solvent as mentioned above, and at least one type of homopolymer or copolymer which is water-insoluble and soluble in organic solvent and which comprises at least one type of repeating unit which does not have acid groups on the main chain or on a side chain, and said silver halide emulsion comprises a monodispersed silver chloride, silver chlorobromide or silver bromide emulsion, containing essentially no silver iodide and of which the (100) plane has, in the main, been enclosed.
Claim 3
Dependent Claim
38 words
A silver halide color photographic photosensitive material as in claim 1, wherein said repeating unit of said polymer which does not have an acid group has a --CO-- bond in its main chain or in a side chain.
Claim 4
Dependent Claim
38 words
A silver halide color photographic photosensitive material as in claim 2, wherein said repeating unit of said polymer which does not have an acid group has a --COO-- group in the main chain or in a side chain.
Claim 5
Dependent Claim
63 words
A silver halide color photographic photosensitive material as in claim 2, wherein said repeating unit of said polymer which does not have an acid group has a ##STR45## group (wherein R represents two substituent groups which may be the same or different, and each R represents a hydrogen atom, a substituted or unsubstituted alkyl group or an aryl group) in a side chain.
Claim 6
Dependent Claim
25 words
A silver halide color photographic photosensitive material as in claim 1, wherein at least one of said oil-soluble couplers is a phenol based cyan coupler.
Claim 7
Dependent Claim
24 words
A silver halide color photographic photosensitive material as in claim 1, wherein at least one of said oil-soluble couplers is a pyrazoloazole based coupler.
Claim 8
Dependent Claim
26 words
A silver halide color photographic photosensitive material in claim 1, wherein at least one of the said oil soluble couplers is a pivaloylacetanilide based yellow coupler.
Claim 9
Dependent Claim
19 words
A silver halide color photographic photosensitive material as in claim 1, wherein said silver halide emulsion is spectrally sensitized.
Claim 10
Dependent Claim
27 words
A silver halide color photographic photosensitive material as in claim 8, wherein the spectral sensitizing dye is selected from among the monomethine, trimethine or pentamethine cyanine dyes.
Claim 11
Dependent Claim
45 words
A silver halide color photographic photosensitive material as in claim 1, wherein the said silver halide emulsion has a grain size distribution of 0.20 or less in terms of the coefficient of variation σ-γ (where σ is standard deviation and γ is mean grain diameter).
Claim 12
Dependent Claim
34 words
A silver halide color photographic photosensitive material as in claim 1; wherein the said silver halide emulsion has a grain size distribution of 0.15 or less in terms of the coefficient of variation σ-γ.
Claim 13
Dependent Claim
27 words
A silver halide color photographic photosensitive material as in claim 1, wherein said silver halide emulsion layer contains at least two of said monodispersed silver halide emulsions.
Claim 14
Dependent Claim
60 words
A silver halide color photographic photosensitive material as in claim 1, wherein the said silver halide emulsion has a K value of 5 or more wherein K is the ratio of the intensity of diffracted ray attributable to (200) face to the intensity of diffracted ray attributable to (222) face which is measured according to the X-ray diffraction analytical method.
Claim 15
Dependent Claim
27 words
A silver halide color photographic photosensitive material as in claim 1, wherein the polymer is comprised of methacrylate based monomers, acrylamide based monomers and/or methacrylamide based monomers.
Claim 16
Dependent Claim
26 words
A silver halide color photographic photosensitive material as in claim 1, wherein the polymer has a molecular weight of less than 1,000,000 and greater than 2,000.
Claim 17
Dependent Claim
25 words
A silver halide color photographic photosensitive material as in claim 1, wherein the silver halide emulsion comprises less than 3 mol % of silver iodide.
Claim 18
Dependent Claim
27 words
A silver halide color photographic photosensitive material as in claim 1, comprising a high boiling point organic solvent having a boiling point of at least 140° C.
Claim 19
Dependent Claim
31 words
A silver halide color photographic photosensitive material as in claim 1, wherein the ratio of said high boiling point organic solvent and the coupler is from 0.05 to 20 by weight.
Claim 20
Dependent Claim
31 words
A silver halide color photographic photosensitive material as in claim 1, wherein the ratio of the high boiling point organic solvent and the polymer is from 0.02/1 to 100/1 by weight.
Claim 21
Dependent Claim
27 words
A silver halide color photographic photosensitive material as in claim 1, wherein the proportion of the coupler to the polymer is from 1.0/0.05 to 1.0/20 by weight.
Claim 22
Dependent Claim
26 words
A silver halide color photographic photosensitive material as in claim 1, comprising the couplers in the amount of from 0.005 to 4 mol/mol of silver halide.
Claim 23
Dependent Claim
34 words
A silver halide color photographic photosensitive material as in claim 1, wherein the couplers are coated onto the support in an amount of from 2×10 -5 mol/m 2 to 1×10 -2 mol/m 2 .
Claim 24
Dependent Claim
31 words
A silver halide color photographic photosensitive material as in claim 1, wherein the average particle size of the fine lipophilic particles is greater than 0.03 μm and less than 2 μm.
Claim 25
Dependent Claim
29 words
A silver halide color photographic photosensitive material as in claim 9, wherein the amount of spectral sensitizing dye is from 1×10 -6 to 1×10 -2 mol/mol of silver halide.
Claim 26
Dependent Claim
60 words
A silver halide color photographic photosensitive material as in claim 1, wherein the copolymer is comprised of at least one type of repeating unit which does not have acid groups on the main chain or on a side chain and at least one type of repeating unit which has acid groups on the main chain or on a side chain.
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) | 1992-08-14 | 1993-02-13 | 1993-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-14 | 1997-02-13 | 1997-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-14 | 2001-02-13 | 2001-08-15 | $7700.00 | Window Closed / Lapsed |