Patent US4770983A successfully refreshed from Google Patents.
US4770983A
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Aryloxy coupling off group yellow couples in silver halide photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1987-08-11
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Granted: 1988-09-13
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Expires: 2007-08-11
Abstract
Abstract A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains at least one yellow dye-forming coupler represented by the formula (I) ##STR1## wherein R 1 represents a substituted or unsubstituted tertiary alkyl group or a substituted or unsubstituted aryl group; R 2 represents a chlorine atom or an alkoxy group; R 3 represents a straight chain or branched chain alkyl group having from 8 to 26 carbon atoms; R 4 represents a branched alkyl group having from 3 to 12 carbon atoms; and R 5 represents a hydrogen atom or a halogen atom. The yellow dye-forming coupler represented by the formula (I) is excellent in solubility, dispersion stability and spectral absorption characteristics, has a good coupling reactivity which is not severely influenced by variations in pH of the color developing solution, and provides a yellow color image having high color density and excellent stability. A method for forming a yellow dye image in the presence of the yellow dye-forming coupler represented by the formula (I) is also disclosed.
Inventors
- 👤 Akira Ogawa
- 👤 Hiroshi Fukuzawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:27
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C7/30517; G03C7/30535
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
109 words
A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains at least one yellow dye-forming coupler represented by the formula (I) ##STR104## wherein R 1 represents a substituted or unsubstituted tertiary alkyl group or a substituted or unsubstituted aryl group; R 2 represents a chlorine atom or an alkoxy group; R 3 represents a straight chain or branched chain alkyl group having from 8 to 26 carbon atoms; R 4 represents a branched alkyl group having from 3 to 12 carbon atoms; and R 5 represents a hydrogen atom or a halogen atom.
Claim 2
Dependent Claim
109 words
A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains at least one yellow dye-forming coupler represented by the formula (I) ##STR104## wherein R 1 represents a substituted or unsubstituted tertiary alkyl group or a substituted or unsubstituted aryl group; R 2 represents a chlorine atom or an alkoxy group; R 3 represents a straight chain or branched chain alkyl group having from 8 to 26 carbon atoms; R 4 represents a branched alkyl group having from 3 to 12 carbon atoms; and R 5 represents a hydrogen atom or a halogen atom.
Claim 3
Dependent Claim
21 words
A silver halide color photographic material as in claim 1, wherein R 1 represents a substituted or unsubstituted tertiary alkyl group.
Claim 4
Dependent Claim
17 words
A silver halide color photographic material as in claim 2, wherein R 1 represents a tert-butyl group.
Claim 5
Dependent Claim
57 words
A silver halide color photographic material as in claim 2, wherein a substituent for the substituted tertiary alkyl group represented by R 1 is selected from a halogen atom, an alkoxy group, an aryloxy group, an arylthio group, an alkylthio group, an alkylsulfonyl group, an arylsulfonyl group, an acylamino group, an amino group, and a cyano group.
Claim 6
Dependent Claim
17 words
A silver halide color photographic material as in claim 1, wherein R 1 represents a phenyl group.
Claim 7
Dependent Claim
59 words
A silver halide color photographic material as in claim 1, wherein a substituent for the substituted aryl group represented by R 1 is selected from a halogen atom, an alkoxy group, an aryloxy grcup, an arylthio group, an alkylthio group, an alkylsulfonyl group, an arylsulfonyl group, an ayclamino group, ar amino group, a cyano group, and an alkyl group.
Claim 8
Dependent Claim
38 words
A silver halide color photographic material as in claim 1, wherein the yellow dye-forming coupler is represented by the formula (II) ##STR105## wherein R 3 and R 4 each has the same meaning as defined in claim 1.
Claim 9
Dependent Claim
42 words
A silver halide color photographic material as in claim 7, wherein R 3 represents a straight chain alkyl group having from 10 to 16 carbon atoms and R 4 represents a branched chain alkyl group having from 3 to 8 carbon atoms.
Claim 10
Dependent Claim
52 words
A silver halide color photographic material as in claim 1, wherein said yellow dye-forming coupler is present in the form of an oil droplet in water type dispersion with employing an organic solvent having a high boiling point, a mixture of the organic solvent with an auxiliary solvent, or the auxiliary solvent.
Claim 11
Dependent Claim
118 words
A silver halide color photographic material as in claim 9, wherein said organic solvent is represented by the formula (VI) or (VII) ##STR106## wherein R 61 and R 62 each represents an alkyl group, a cycloalkyl group, an alkenyl group or an aryl group, and the total number of carbon atoms included in the groups represented by R 61 and R 62 is from 4 to 30; ##STR107## wherein R 71 , R 72 and R 73 each represents an alkyl group, a cycloalkyl group, an alkenyl group or an aryl group, and the total number of carbon atoms included in the groups represented by R 71 , R 72 and R 73 is from 12 to 60.
Claim 12
Dependent Claim
27 words
A silver halide color photographic material as in claim 10, wherein a ratio by weight of the organic solvent/the yellow dye-forming coupler is not more than 0.5/1.
Claim 13
Dependent Claim
18 words
A silver halide color photographic material as in claim 11, wherein said ratio is not more than 0.2/1.
Claim 14
Dependent Claim
18 words
A silver halide color photographic material as in claim 12, wherein said ratio is not more than 0.05/1.
Claim 15
Dependent Claim
17 words
A silver halide color photographic material as in claim 9, wherein only the auxiliary solvent is employed.
Claim 16
Dependent Claim
23 words
A silver halide color photographic material as in claim 1, wherein the yellow dye-forming coupler is present in a silver halide emulsion layer.
Claim 17
Dependent Claim
23 words
A silver halide color photographic material as in claim 15, wherein the silver halide emulsion layer is a blue-sensitive silver halide emulsion layer.
Claim 18
Dependent Claim
211 words
A silver halide color photographic material as in claim 16, wherein the blue-sensitive silver halide emulsion layer contains at least one dye selected from a merocyanine dye and a cyanine dye represented by the formula (VIII-1), (VIII-2), (IX) or (X) ##STR108## wherein R 81 represents an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group, an unsubstituted or substituted aralkyl group, an unsubstituted or substituted alkenyl group or an allyl group; and R 82 represents an unsubstituted or substituted alkyl group, an unsubstituted or substituted alkenyl group or an allyl group; ##STR109## wherein R 91 has the same meaning as defined for R 81 in the formula (VIII-1); R 92 has the same meaning as defined for R 82 in the formula (VIII-1); X 91 represents an oxygen atom or a sulfur atom; and Z 91 represents an atomic group forming a benzene ring or a naphthalene ring; ##STR110## wherein X 101 and X 102 each represents an oxygen atom or a sulfur atom; R 101 and R 102 each has the same meaning as defined for R 82 in the formula (VIII-1); Z101 and Z 102 each has the same meaning as defined for Z91 in the formula (IX); represents an anion; and n represents 1 or 2.
Claim 19
Dependent Claim
50 words
A silver halide color photographic material as in claim 16, wherein the silver halide color photographic material further comprises at least one green-sensitive silver halide emulsion layer containing at least one magenta dye-forming coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan dye-forming coupler.
Claim 20
Dependent Claim
33 words
A silver halide color photographic material as in claim 18, wherein the magenta dye-forming coupler is selected from a polymerized 5-pyrazolone magenta coupler, a pyrazoloazole magenta coupler, and a polymerized pyrazoloazole magenta coupler.
Claim 21
Dependent Claim
27 words
A silver halide color photographic material as in claim 18, wherein the cyan dye-forming coupler is selected from a naphthoic cyan coupler and a phenolic cyan coupler.
Claim 22
Dependent Claim
68 words
A silver halide color photographic material as in claim 20, wherein the cyan dye-forming coupler is a phenolic cyan coupler having an acylamino group substituted with a fluorine atom at the 2-position of the phenol nucleus and an unsubstituted acylamino group having from 8 to 30 carbon atoms or an acylamino group substituted with a phenoxy group having from 6 to 28 carbon atoms at the 5-position thereof.
Claim 23
Dependent Claim
107 words
A silver halide color photographic material as in claim 18, wherein at least one layer selected from the blue-sensitive silver halide emulsion layer and layers adjacent thereto contains at least one compound having both a hindered amine moiety structure and a hindered phenolic moiety structure in its molecule, at least one layer selected from the green-sensitive silver halide emulsion layer and layers adjacent thereto contains at least one compound selected from a spiroindane and a chroman substituted with a hydroquinone diether or monoether, and at least one layer selected from the red-sensitive silver halide emulsion layer and layers adjacent thereto contains at least one ultraviolet ray absorbent.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 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 |