US4293641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
•
Filing: 1980-04-24
•
Granted: 1981-10-06
•
Expires: 2000-04-24
Abstract
Abstract A photographic light-sensitive material is described comprising a support having thereon at least two silver halide photographic emulsion layers capable of forming a silver image upon treatment with an alkaline processing solution in the presence of a developing agent for silver halide after exposure, said material containing an interlayer positioned between said emulsion layers, wherein the improvement comprises said interlayer containing a complex which is formed from a mixture of hydroquinone derivatives having a solidifying point of 100° C. or less, and which are different compounds from the developing agent for silver halide used in the treatment of the material, and a homopolymer or copolymer containing a recurring unit represented by formula (I): ##STR1## wherein R 1 represents a hydrogen atom or a methyl group; Q represents of chemical bond, --COOR 2 -- or --CONHR 2 --; A represents a chemical bond or an oxygen atom; B represents a chemical bond or ##STR2## D represents --CH=CH) 2 or --CH 2 ) n , wherein n represents an integer of 3 to 5 when A and B are both chemical bonds, an integer of 2 or 3 when A is an oxygen atom and B is a chemical bond, or an integer of 2 to 4 when A is a chemical bond and G is ##STR3## or D represents ##STR4## when A is a chemical bond and B is ##STR5## and R 2 represents a substituted or unsubstituted divalent hydrocarbon group having 2 to 8 carbon atoms. The photographic light-sensitive material provides color images having excellent color separation.
Inventors
- 👤 Osamu Takahashi
- 👤 Shinji Sakaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:49
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/42; G03C8/52
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
263 words
A photographic light-sensitive material comprising a support having thereon at least two silver halide photographic emulsion layers capable of forming a silver image upon treatment with an alkaline processing solution in the presence of a developing agent for silver halide after exposure, said material containing an interlayer to prevent color mixing positioned between said emulsion layers, wherein the improvement comprises an interlayer containing gelatin and a complex which is formed by dissolving a mixture of hydroquinone derivatives having a solidifying point of 100° C. or less in a low boiling point solvent, which are different from the developing agent for silver halide used in the treatment of the material and which do not substantially develop silver halide and a homopolymer or copolymer containing a recurring unit represented by formula (I): ##STR29## wherein R 1 represents a hydrogen atom or a methyl group; Q represents a chemical bond, --COOR 2 -- or --CONHR 2 --; A represents a chemical bond or an oxygen atom; B represents a chemical bond or ##STR30## D represents --CH═CH) 2 or --CH 2 ) n , wherein n represents an integer of 3 to 5 when A and B are both chemical bonds, an integer of 2 or 3 when A is an oxygen atom and B is a chemical bond, or an integer of 2 to 4 when A is a chemical bond and B is ##STR31## or D represents ##STR32## when A is a chemical bond and B is ##STR33## and R 2 represents a substituted or unsubstituted divalent hydrocarbon group having 2 to 8 carbon atoms.
Claim 2
Dependent Claim
263 words
A photographic light-sensitive material comprising a support having thereon at least two silver halide photographic emulsion layers capable of forming a silver image upon treatment with an alkaline processing solution in the presence of a developing agent for silver halide after exposure, said material containing an interlayer to prevent color mixing positioned between said emulsion layers, wherein the improvement comprises an interlayer containing gelatin and a complex which is formed by dissolving a mixture of hydroquinone derivatives having a solidifying point of 100° C. or less in a low boiling point solvent, which are different from the developing agent for silver halide used in the treatment of the material and which do not substantially develop silver halide and a homopolymer or copolymer containing a recurring unit represented by formula (I): ##STR29## wherein R 1 represents a hydrogen atom or a methyl group; Q represents a chemical bond, --COOR 2 -- or --CONHR 2 --; A represents a chemical bond or an oxygen atom; B represents a chemical bond or ##STR30## D represents --CH═CH) 2 or --CH 2 ) n , wherein n represents an integer of 3 to 5 when A and B are both chemical bonds, an integer of 2 or 3 when A is an oxygen atom and B is a chemical bond, or an integer of 2 to 4 when A is a chemical bond and B is ##STR31## or D represents ##STR32## when A is a chemical bond and B is ##STR33## and R 2 represents a substituted or unsubstituted divalent hydrocarbon group having 2 to 8 carbon atoms.
Claim 3
Dependent Claim
64 words
A photographic light-sensitive material as in claim 1 wherein each of said silver halide emulsion layers is associated with a dye releasing redox compound which is capable of releasing a diffusible dye as a result of the redox reaction with an oxidation product of the developing agent for silver halide which is formed upon treatment of the photographic material with an alkali processing solution.
Claim 4
Dependent Claim
60 words
A photographic light-sensitive material as in claim 1 wherein each of said silver halide emulsion layers is associated with a color image forming coupler which is capable of forming a dye as a result of the coupling reaction with the oxidation product of the developing agent for silver halide which is formed upon the treatment with an alkali processing solution.
Claim 5
Dependent Claim
23 words
A photographic light-sensitive material as in claim 1 wherein said mixture of hydroquinone derivatives has a solidifying point of 60° C. or less.
Claim 6
Dependent Claim
18 words
A photographic light-sensitive material as in claim 4 wherein said mixture is liquid or waxen at room temperature.
Claim 7
Dependent Claim
22 words
A photographic light-sensitive material as in claim 4 wherein said mixture of hydroquinone derivatives is a mixture of branched chain alkyl hydroquinones.
Claim 8
Dependent Claim
41 words
A photographic light-sensitive material as in claim 6 wherein said mixture is an isomer mixture of hydroquinone compounds having tertiary alkyl groups having 15 carbon atoms substituted at the 2- and 5-positions or the 2- and 6-positions of the benzene ring.
Claim 9
Dependent Claim
19 words
A photographic light-sensitive material as in claim 6 wherein said mixture is an isomer mixture of secondary dodecyl hydroquinones.
Claim 10
Dependent Claim
49 words
A photographic light-sensitive material as in claim 1, wherein said homopolymer or copolymer contains a recurring unit derived from a monomer of an N-vinyl lactam, an N-vinyl imide, an N-acryloyloxyalkyl lactam, an N-acryloyloxyalkyl imide, an N-methacryloyloxyalkyl lactam, an N-methacryloyloxyalkyl imide, an N-(acrylamidoalkyl)lactam, an N-(acrylamidoalkyl)imide, an N-(methacrylamidoalkyl)lactam, or an N-(methacrylamidoalkyl)imide.
Claim 11
Dependent Claim
67 words
A photographic light-sensitive material as in claim 1, wherein said copolymer contains a recurring unit derived from a monomer of an acrylic acid ester, a methacrylic acid ester, an acrylamide, a methacrylamide, an allyl compound, a vinyl ether, a vinyl ester, a vinyl heterocyclic compound, a styrene compound, a maleic acid ester, a fumaric acid ester, an itaconic acid ester, a crotonic acid ester, or an olefin.
Claim 12
Dependent Claim
32 words
A photographic light-sensitive material as in claim 1, wherein said homopolymer or copolymer contains a recurring unit derived from a monomer of an N-vinyl lactam, an N-vinyl imide or an N-vinyl oxazolidone.
Claim 13
Dependent Claim
17 words
A photographic light-sensitive material as in claim 9, wherein said monomer is N-vinyl pyrrolidone or N-vinyl succinimide.
Claim 14
Dependent Claim
36 words
A photographic light-sensitive material as in claim 1, wherein said copolymer contains a recurring unit derived from a monomer of an acrylic acid ester, a methacrylic acid ester, a vinyl ester, an acrylamide or a methacrylamide.
Claim 15
Dependent Claim
28 words
A photographic light-sensitive material as in claim 11 wherein said copolymer consists of a recurring unit derived from N-vinyl pyrrolidone and a recurring unit derived from vinyl acetate.
Claim 16
Dependent Claim
27 words
A photographic light-sensitive material as in claim 1, wherein recurring units of formula (I) constitute from about 40 to 100 mol % of the homopolymer or copolymer.
Claim 17
Dependent Claim
25 words
A photographic light-sensitive material as in claim 1, wherein recurring units of formula (I) constitute from about 70 to 98 mol % of the copolymer.
Claim 18
Dependent Claim
24 words
A photographic light-sensitive material as in claim 1, wherein the average molecular weight of the homopolymer or copolymer is from about 10,000 to 1,000,000.
Claim 19
Dependent Claim
24 words
A photographic light-sensitive material as in claim 1, wherein the average molecular weight of the homopolymer or copolymer is from about 50,000 to 500,000.
Claim 20
Dependent Claim
28 words
A photographic light-sensitive material as in claim 1, wherein the concentration of the mixture of hydroquinone derivative is from about 2×10 -4 to 1×10 -2 mol/m 2 .
Claim 21
Dependent Claim
28 words
A photographic light-sensitive material as in claim 1, wherein the concentration of the mixture of hydroquinone derivative is from about 1×10 -3 to 7×10 -3 mol/m 2 .
Claim 22
Dependent Claim
26 words
A photographic light-sensitive material as in claim 1, wherein the molar ratio of homopolymer or copolymer/the mixture of hydroquinone derivatives ranges from about 0.05/1 to 5/1.
Claim 23
Dependent Claim
26 words
A photographic light-sensitive material as in claim 1, wherein the molar ratio of homopolymer or copolymer/the mixture of hydroquinone derivatives ranges from about 0.2/1 to 2/1.
Claim 24
Dependent Claim
27 words
A photographic light-sensitive material as claimed in claim 1, wherein said low-boiling point solvent is selected from the group consisting of ethyl acetate and methyl ethyl ketone.
Claim 25
Dependent Claim
23 words
A photographic light-sensitive material as claimed in claim 1, wherein said homopolymer or copolymer is present in an amount less than said gelatin.
Claim 26
Dependent Claim
17 words
A photographic light-sensitive material as claimed in claim 23, wherein said low-boiling point solvent is water insoluble.
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) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |