Patent US4933269A successfully refreshed from Google Patents.
US4933269A
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Photographic silver halide element containing infrared filter dyes
Assignee: Eastman Kodak Co
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Filing: 1989-11-27
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Granted: 1990-06-12
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Expires: 2009-11-27
Abstract
Abstract A infrared absorbing filter dye that also imparts a cool image tone after processing is disclosed for use in photographic elements. The dye has the formula: ##STR1## where Z and Z' each independently represents the atoms necessary to complete a substituted or unsubstituted: thiazole nucleus, selenazole nucleus, indole nucleus, imidazole nucleus, or quinoline nucleus, R 1 and R 2 each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, Z" represents the atoms necessary to complete a substituted or unsubstituted heterocyclic ring, Q represents the atoms necessary to complete a substituted or unsubstituted carbocyclic ring, m and n each independently represents 0 or 1, and X represents a counterion as needed to balance the charge of the molecule.
Inventors
- 👤 Richard L. Parton
- 👤 David A. Stegman
- 👤 Ralph W. Jones, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:40
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/0066; G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83; G03C1/832; Y; Y10; Y10S; Y10S430/00; Y10S430/145
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
139 words
A photographic element comprising a support having thereon an infrared radiation-sensitive silver halide emulsion layer and a hydrophilic colloid layer, which is the same as or different from the infrared radiation-sensitive layer, comprising at least about 5 mg/m 2 of a filter dye having the formula: ##STR10## wherein Z and Z' each independently represents the atoms necessary to complete a substituted or unsubstituted: thiazole nucleus, selenazole nucleus, indole nucleus, imidazole nucleus, or quinoline nucleus, R 1 and R 2 each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, Z" represents the atoms necessary to complete a substituted or unsubstituted heterocyclic ring, Q represents the atoms necessary to complete a substituted or unsubstituted carbocyclic ring, m and n each independently represents 0 or 1, and X represents a counterion as needed to balance the charge of the molecule.
Claim 2
Dependent Claim
139 words
A photographic element comprising a support having thereon an infrared radiation-sensitive silver halide emulsion layer and a hydrophilic colloid layer, which is the same as or different from the infrared radiation-sensitive layer, comprising at least about 5 mg/m 2 of a filter dye having the formula: ##STR10## wherein Z and Z' each independently represents the atoms necessary to complete a substituted or unsubstituted: thiazole nucleus, selenazole nucleus, indole nucleus, imidazole nucleus, or quinoline nucleus, R 1 and R 2 each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, Z" represents the atoms necessary to complete a substituted or unsubstituted heterocyclic ring, Q represents the atoms necessary to complete a substituted or unsubstituted carbocyclic ring, m and n each independently represents 0 or 1, and X represents a counterion as needed to balance the charge of the molecule.
Claim 3
Dependent Claim
15 words
A photographic element according to claim 1 wherein the dye is in the radiation-sensitive layer.
Claim 4
Dependent Claim
19 words
A photographic element according to claim 1 wherein the dye is in a layer other than the radiation-sensitive layer.
Claim 5
Dependent Claim
14 words
A photographic element according to claim 3 wherein the dye is an antihalation dye.
Claim 6
Dependent Claim
24 words
A photographic element according to claim 4 wherein the dye-containing layer is located on the side of the support opposite from the radiation-sensitive layer.
Claim 7
Dependent Claim
20 words
A photographic element according to claim 4 wherein the dye-containing layer is located between the support and the radiation-sensitive layer.
Claim 8
Dependent Claim
21 words
A photographic element according to claim 1 wherein the radiation-sensitive layer comprises an emulsion of infrared-sensitive silver halide and a vehicle.
Claim 9
Dependent Claim
24 words
A photographic element according to claim 1 wherein the layer comprising the dye is substantially free of any compound that would deaggregate the dye.
Claim 10
Dependent Claim
17 words
A photographic element according to claim 1 comprising about 10 to 200 mg/m 2 of the dye.
Claim 11
Dependent Claim
24 words
A photographic element according to claim 1 wherein the support comprises another filter dye that is a blue dye resistant to removal on processing.
Claim 12
Dependent Claim
28 words
A photographic element according to claim 1 wherein the element further comprises a layer that includes another filter dye that is blue dye resistant to removal on processing.
Claim 13
Dependent Claim
25 words
A photographic element according to claim 1 wherein Z and Z' each independently represents a substituted or unsubstituted: thiazole nucleus, selenazole nucleus, or indole nucleus.
Claim 14
Dependent Claim
53 words
A photographic element according to claim 1 wherein ##STR11## is represented by the formula: ##STR12## wherein R 4 is selected from the group consisting of ##STR13## wherein R 5 , R 6 , R 7 , R 8 , and R 9 are each independently alkyl of from 1 to 4 carbon atoms.
Claim 15
Dependent Claim
137 words
A photographic element according to claim 1 wherein the dye is selected from the group consisting of: ##STR14## wherein R 10 and R 11 each independently represents alkyl of from 1 to 6 carbon atoms or sulfoalkyl of from about 2 to 6 carbon atoms, R 12 , R 13 , and R 14 each independently represents alkyl of from about 1 to 4 carbon atoms, R 15 , R 16 , R 17 , and R 18 each independently sulfoalkyl of from about 2 to 6 carbon atoms, R 19 and R 20 each independently represents H or 5,6-benzo, Z" represents the atoms necessary to complete a piperidyl or a pyrrolidyl ring structure, Y and Y' each independently represents S or Se, and X represents a counterion as needed to balance the charge of the molecule.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-06-11 | 1993-12-11 | 1994-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-11 | 1997-12-11 | 1998-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-11 | 2001-12-11 | 2002-06-12 | $7700.00 | Window Closed / Lapsed |