US5026628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic material and process comprising a compound capable of forming a wash-out dye
Assignee: Eastman Kodak Co
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Filing: 1990-02-22
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Granted: 1991-06-25
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Expires: 2010-02-22
Abstract
Abstract Photographic compound (A) capable of releasing a photographically useful group is represented by the formula: SOL-CAR-LINK-PUG wherein SOL is a water-solubilizing group; CAR is a carrier moiety that, upon reaction with oxidized developing agent, is capable of releasing LINK-PUG and capable of forming a compound that is washed out of the photographic element during photographic processing; LINK-PUG is in turn capable of releasing a photographically useful group (PUG) during photographic processing and LINK-PUG is represented by the formula: ##STR1## wherein X, R 1 , R 2 , R 3 , R 4 and PUG are as defined in the application. The photographic compound (A) enables formation of easily removable compounds in photographic elements and processes that provide images having improved acutance.
Inventors
- 👤 William J. Begley
- 👤 Teh-Hsuan Chen
- 👤 Kenneth N. Kilminster
- 👤 Jerrold N. Poslusny
- 👤 Wojciech Slusarek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:02
CPC Classifications
C; C07; C07D; C07D257/00; C07D257/02; C07D257/04; G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30576; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158; Y10S430/16
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
183 words
A photographic element comprising a support bearing at least one photographic silver halide emulsion layer and at least one compound (A) represented by the formula SOL-CAR-LINK-PUG wherein SOL is a water solubilizing group, CAR is a carrier moiety that, upon reaction with oxidized developing agent, is capable of releasing LINK-PUG and capable of forming a compound that is washed out of the photographic element during photographic processing; LINK-PUG is in turn capable of releasing a photographically useful group (PUG) during photographic processing; and, LINK-PUG is represented by the formula: ##STR73## wherein X represents the atoms necessary to complete an unsubstituted or substituted arylene or heterocyclic group; R 1 and R 2 individually are hydrogen, alkyl, aryl or R 1 and R 2 together complete a 5- or 6-member ring; R 3 is a divalent group that enables formation of a 5-, 6-, or 7-member ring upon processing of the photographic element; R 4 is hydrogen, unsubstituted or substituted alkyl, or unsubstituted or substituted aryl or represents the atoms completing a ring with R 3 ; and, PUG is a releasable photographically useful group.
Claim 2
Dependent Claim
183 words
A photographic element comprising a support bearing at least one photographic silver halide emulsion layer and at least one compound (A) represented by the formula SOL-CAR-LINK-PUG wherein SOL is a water solubilizing group, CAR is a carrier moiety that, upon reaction with oxidized developing agent, is capable of releasing LINK-PUG and capable of forming a compound that is washed out of the photographic element during photographic processing; LINK-PUG is in turn capable of releasing a photographically useful group (PUG) during photographic processing; and, LINK-PUG is represented by the formula: ##STR73## wherein X represents the atoms necessary to complete an unsubstituted or substituted arylene or heterocyclic group; R 1 and R 2 individually are hydrogen, alkyl, aryl or R 1 and R 2 together complete a 5- or 6-member ring; R 3 is a divalent group that enables formation of a 5-, 6-, or 7-member ring upon processing of the photographic element; R 4 is hydrogen, unsubstituted or substituted alkyl, or unsubstituted or substituted aryl or represents the atoms completing a ring with R 3 ; and, PUG is a releasable photographically useful group.
Claim 3
Dependent Claim
13 words
A photographic element as in claim 1 wherein CAR is a coupler moiety.
Claim 4
Dependent Claim
18 words
A photographic element as in claim 1 wherein CAR is a cyan, magenta or yellow dye-forming coupler moiety.
Claim 5
Dependent Claim
51 words
A photographic element as in claim 1 wherein LINK-PUG is represented by the formula: ##STR74## wherein R 5 is hydrogen or an substituent group; R 6 and R 7 individually are hydrogen, alkyl or aryl; R 8 is alkyl, cycloalkyl, heterocyclic or aryl; and Q is a releasable development inhibitor group.
Claim 6
Dependent Claim
134 words
A photographic element as in claim 1 wherein the compound (A) is represented by the formula: ##STR75## wherein SOL is a water-solubilizing group; COUP is a dye-forming coupler having the remainder of the molecule substituted in the coupling position; X represents the atoms necessary to complete an arylene or heterocyclic group; R 1 and R 2 individually are hydrogen, alkyl, aryl or R 1 and R 2 together complete a 5- or 6-member ring; R 3 is a divalent group that enables formation of a 5-, 6- or 7-member ring upon processing the photographic element; R 4 is hydrogen, unsubstituted or substituted alkyl or unsubstituted or substituted aryl or represents the atoms completing a ring with R 3 ; R 5 is hydrogen or a substituent; and, PUG is a releasable photographically useful group.
Claim 7
Dependent Claim
21 words
A photographic element as in claim 1 wherein LINK-PUG is represented by the formula: ##STR76## wherein BALL is a ballast group.
Claim 8
Dependent Claim
13 words
A photographic element as in claim 1 wherein SOL is a p-carboxyphenyl group.
Claim 9
Dependent Claim
13 words
A photographic element as in claim 1 wherein the compound (A) is: ##STR77##
Claim 10
Dependent Claim
39 words
A photographic element as in claim 1 wherein the photographically useful group is a releasable development inhibitor, developing agent, development accelerator, bleach inhibitor, bleach accelerator, dye, dye-precursor, stabilizer, coupler, nucleator, fixing agent, image toner, hardener, antifoggant, or ultraviolet absorber.
Claim 11
Dependent Claim
34 words
A process of forming a photographic image which comprises developing an exposed photographic silver halide emulsion layer with a color developing agent in the presence of a compound (A) as defined in claim 1.
Claim 12
Dependent Claim
23 words
A process of forming a photographic image as in claim 10 wherein the compound (A) is a coupler as defined in claim 5.
Claim 13
Dependent Claim
12 words
A process as in claim 10 wherein the compound (A) is: ##STR78##
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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) | 1994-06-24 | 1994-12-24 | 1995-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-24 | 1998-12-24 | 1999-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-24 | 2002-12-24 | 2003-06-25 | $7700.00 | Window Closed / Lapsed |