US4273855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic diffusion transfer process and material for the production of color images and suitable compounds therefor
Assignee: Agfa Gevaert NV
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Filing: 1979-03-12
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Granted: 1981-06-16
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Expires: 1999-03-12
Abstract
Abstract A compound of the following formula and use of this compound in a photographic material and a photographic diffusion transfer process for the production of color images: ##STR1## wherein R represents a hydrogen atom or an alkyl group with 1 to 4 C atoms; A represents an oxyalkylene group, such as --CH 2 --CH 2 --O--; n represents 1 or 2; X represents a residue of a dye or a dye precursor, which either directly or by means of an intermediate link Z is linked to the SO 2 -group; Z represents an alkylene group of 1 to 6 C atoms, an arylene group, or a heterocyclic group, which is linked to the residue X either directly or by means of --O--, --S--, --SO 2 --, --NR-- (R being hydrogen or an alkyl group), --CO--, --CO--NH--, or --SO 2 --NH--; R 1 represents --OR 2 , --SR 2 or ##STR2## R 2 being hydrogen, an alkyl group with 1 to 22 C atoms, a cycloalkyl group or an aryl group wherein said alkyl, cycloalkyl and aryl groups may be further substituted, R 3 being one of the residues defined under R 2 or being an acyl residue, which is derived from an aliphatic or aromatic carboxylic or sulphonic acid, and R 4 being hydrogen or optionally a substituted alkyl group with 1 to 22 C atoms.
Inventors
- 👤 Jan Jaeken
- 👤 Andre Verhecken
- 👤 Hans Vetter
- 👤 Paul Marx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:22
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/02; G03C8/08; G03C8/10; C; C07; C07C; C07C205/00; C07C205/27; C07C205/35; C07C205/36; C07C205/37; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/30; C07D209/42; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/44; C07D231/46
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
280 words
Photographic diffusion transfer process for making colour images according to which a photographic material with at least one light-sensitive silver halide emulsion layer and associated with this layer a non-migratory colour-providing compound, which in its oxidized form and in alkaline medium is capable of releasing a diffusing dye, is image-wise exposed and developed with a silver halide developing agent, which in its oxidized form oxidizes the non-migratory colour-providing compound as a result of which oxidation the latter is split by a developer alkali under formation of an image-wise distribution of the released diffusing dye, characterized in that the non-migratory colour-providing compound corresponds to the following general formula: ##STR52## wherein: R represents an alkyl group of 1 to 4 C atoms; A represents an oxyalkylene group; n is 1 or 2; X represents a dye residue or a dye precursor, which is bound to the SO 2 -group either directly or through Z acting as an intermediate link; Z represents an alkylene group of 1 to 6 C atoms, an arylene group or a heterocyclic group, which is linked to the residue X either directly or by means of --O--, --S--, --SO 2 --, --NR-- (R being hydrogen or an alkyl group), --CO--, --CONH-- or --SO 2 NH--; R 1 represents --OR 2 , --SR 2 or ##STR53## R 2 being hydrogen, an alkyl group with 1 to 22 C atoms, a cycloalkyl group or an aryl group, R 3 being one of the residues defined under R 2 or being an acyl residue which is derived from an aliphatic or aromatic carboxylic or sulphonic acid, and R 4 being hydrogen or an alkyl group with 1 to 22 C atoms.
Claim 2
Dependent Claim
280 words
Photographic diffusion transfer process for making colour images according to which a photographic material with at least one light-sensitive silver halide emulsion layer and associated with this layer a non-migratory colour-providing compound, which in its oxidized form and in alkaline medium is capable of releasing a diffusing dye, is image-wise exposed and developed with a silver halide developing agent, which in its oxidized form oxidizes the non-migratory colour-providing compound as a result of which oxidation the latter is split by a developer alkali under formation of an image-wise distribution of the released diffusing dye, characterized in that the non-migratory colour-providing compound corresponds to the following general formula: ##STR52## wherein: R represents an alkyl group of 1 to 4 C atoms; A represents an oxyalkylene group; n is 1 or 2; X represents a dye residue or a dye precursor, which is bound to the SO 2 -group either directly or through Z acting as an intermediate link; Z represents an alkylene group of 1 to 6 C atoms, an arylene group or a heterocyclic group, which is linked to the residue X either directly or by means of --O--, --S--, --SO 2 --, --NR-- (R being hydrogen or an alkyl group), --CO--, --CONH-- or --SO 2 NH--; R 1 represents --OR 2 , --SR 2 or ##STR53## R 2 being hydrogen, an alkyl group with 1 to 22 C atoms, a cycloalkyl group or an aryl group, R 3 being one of the residues defined under R 2 or being an acyl residue which is derived from an aliphatic or aromatic carboxylic or sulphonic acid, and R 4 being hydrogen or an alkyl group with 1 to 22 C atoms.
Claim 3
Dependent Claim
32 words
Process according to claim 1, characterized in that that R 1 is a residue making fast to diffusion or contains such a residue and A is a --CH 2 --CH 2 O--group.
Claim 4
Dependent Claim
228 words
Photographic material with at least one light-sensitive silver halide emulsion layer and associated therewith a non-migratory colour-providing compound, which in its oxidized form and in an alkaline medium is capable of releasing a diffusing dye, characterized in that that the non-migratory colour-providing compound corresponds to the following general formula: ##STR54## wherein: R represents an alkyl group of 1 to 4 C atoms; A represents an oxyalkylene group; n is the number 1 or 2; X represents a residue of a dye or a dye precursor, which is bound to the SO 2 -group either directly or by means of Z acting as an intermediate link; Z represents an alkylene group of 1 to 6 carbon atoms, an arylene group or a heterocyclic group, which is linked to the residue X either directly or by means of --O--, --S--, --SO 2 --, --NR-- (R being hydrogen or an alkyl group), --CO--, --CONH-- or --SO 2 NH--; R 1 represents --OR 2 , --SR 2 or ##STR55## R 2 being hydrogen, an alkyl group with 1 to 22 C atoms, a cycloalkyl group or an aryl group, R 3 being one of the residues defined under R 2 or being an acyl residue which is derived from an aliphatic or aromatic carboxylic or sulphonic acid, and R 4 being hydrogen or an alkyl group with 1 to 22 C atoms.
Claim 5
Dependent Claim
228 words
Photographic material with at least one light-sensitive silver halide emulsion layer and associated therewith a non-migratory colour-providing compound, which in its oxidized form and in an alkaline medium is capable of releasing a diffusing dye, characterized in that that the non-migratory colour-providing compound corresponds to the following general formula: ##STR54## wherein: R represents an alkyl group of 1 to 4 C atoms; A represents an oxyalkylene group; n is the number 1 or 2; X represents a residue of a dye or a dye precursor, which is bound to the SO 2 -group either directly or by means of Z acting as an intermediate link; Z represents an alkylene group of 1 to 6 carbon atoms, an arylene group or a heterocyclic group, which is linked to the residue X either directly or by means of --O--, --S--, --SO 2 --, --NR-- (R being hydrogen or an alkyl group), --CO--, --CONH-- or --SO 2 NH--; R 1 represents --OR 2 , --SR 2 or ##STR55## R 2 being hydrogen, an alkyl group with 1 to 22 C atoms, a cycloalkyl group or an aryl group, R 3 being one of the residues defined under R 2 or being an acyl residue which is derived from an aliphatic or aromatic carboxylic or sulphonic acid, and R 4 being hydrogen or an alkyl group with 1 to 22 C atoms.
References Cited (Backward Citations)
US4156608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |