US3615568A
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Photosensitive elements containing photooxidants containing heterocyclic nitrogen atom substituted by an alkoxy or an acyloxy group
Assignee: Eastman Kodak Co
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Filing: 1969-09-18
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Granted: 1971-10-26
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Expires: 1989-09-18
Abstract
Abstract Novel photosensitive elements and compositions are described. The compositions contain (a) a colorless oxidizable nitrogencontaining organic color generator and (b) a photooxidant containing a heterocyclic nitrogen atom which is substituted by an alkoxy or an acyloxy group. When the photooxidant is exposed to actinic radiation, it causes the oxidation of the color generator to a colored material.
Inventors
- 👤 Philip W Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:45
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/72; G03C1/73
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
78 words
A photosensitive element comprising a support containing a composition comprising a. an essentially colorless, oxidizable, nitrogen-containing, organic color generator, which when contained in said composition, is stable to oxidation by atmospheric oxygen under normal room and storage conditions but which is oxidizable to a colored material and b. a photo-oxidant which is capable of oxidizing said color generator to a colored material when subjected to actinic radiation, said photo-oxidant having a formula selected from the group consisting of:
Claim 2
Dependent Claim
30 words
The element as defined in claim 2 wherein Z represents the atoms necessary to complete a member selected from the group consisting of a pyridine nucleus and a quinoline nucleus.
Claim 3
Dependent Claim
20 words
The element as defined in claim 2 wherein R1 is a methine linkage terminated by five- to six-membered heterocyclic nucleus.
Claim 4
Dependent Claim
22 words
The element as defined in claim 2 wherein said composition contains a polymeric binder for said organic color generator and said photo-oxidant.
Claim 5
Dependent Claim
15 words
The element as defined in claim 2 wherein said composition is imbibed into the support.
Claim 6
Dependent Claim
15 words
The element as defined in claim 2 wherein said composition is coated on the support.
Claim 7
Dependent Claim
53 words
The element as defined in claim 2 wherein said component (a) is selected from the group consisting of (1) a leuco dye; (2) an N-acyl derivative of a leuco dye; (3) a substituted triarylmethane wherein the single remaining methane bond is substituted with benzylthio, 2-phenylhydrazino, alkoxycarbonyl or disulfide; and (4) an organic amine.
Claim 8
Dependent Claim
18 words
The element as defined in claim 2 wherein said component (b) is selected from the group consisting of:
Claim 9
Dependent Claim
49 words
A photosensitive element comprising a support having coated thereon a composition comprising a. from about 0.1 to about 10 percent by weight of tris-(p-dimethylaminophenyl)methane as a color generator, b. from about 0.1 to about 10 percent by weight of N-ethoxy-2-picolinium iodide as a photo-oxidant and c. a polymeric binder.
Claim 10
Dependent Claim
49 words
A photosensitive element comprising a support having coated thereon a composition comprising a. from about 0.1 to about 10 percent by weight of tris-(p-dimethylaminophenyl)methane as a color generator, b. from about 0.1 to about 10 percent by weight of N-ethoxy-2-picolinium hexafluorophosphate as a photo-oxidant and c. a polymeric binder.
Claim 11
Dependent Claim
49 words
A photosensitive element comprising a support having coated thereon a composition comprising a. from about 0.1 to about 10 percent by weight of tris-(p-dimethylaminophenyl)methane as a color generator, b. from about 0.1 to about 10 percent by weight of N-methoxy-2-anilinovinylpyridinium paratoluenesulfonate as a photo-oxidant and c. a polymeric binder.
Claim 12
Dependent Claim
86 words
A photosensitive composition comprising a. an essentially colorless, oxidizable, nitrogen-containing, organic color generator, which when contained in said composition, is stable to oxidation by atmospheric oxygen under normal room and storage conditions but which is oxidizable to a colored material and b. a photo-oxidant containing a heterocyclic nitrogen atom which is substituted by a member selected from the group consisting of an alkoxy group and an acyloxy group, said photo-oxidant being capable of oxidizing said color generator to a colored material when subjected to actinic radiation.
Claim 13
Dependent Claim
72 words
A photosensitive composition comprising a. an essentially colorless, oxidizable, nitrogen-containing, organic color generator, which when contained in said composition, is stable to oxidation by atmospheric oxygen under normal room and storage conditions but which is oxidizable to a colored material and b. a photo-oxidant which is capable of oxidizing said color generator to a colored material when subjected to actinic radiation, said photo-oxidant having a formula selected from the group consisting of:
Claim 14
Dependent Claim
31 words
The photosensitive composition as defined in claim 14 wherein Z represents the atoms necessary to complete a member selected from the group consisting of a pyridine nucleus and a quinoline nucleus.
Claim 15
Dependent Claim
22 words
The photosensitive composition as defined in claim 14 wherein R1 is a methine linkage terminated by a five- to six-membered heterocyclic nucleus.
Claim 16
Dependent Claim
23 words
The photosensitive composition as defined in claim 14 wherein said composition contains a polymeric binder for said organic color generator and said photo-oxidant
Claim 17
Dependent Claim
54 words
The photosensitive composition as defined in claim 14 wherein said component (a) is selected from the group consisting of (1) a leuco dye; (2) an N-acyl derivative of a leuco dye; (3) a substituted triarylmethane wherein the single remaining methane bond is substituted with benzylthio, 2-phenyl-hydrazino, alkoxycarbonyl or disulfide; and (4) an organic amine.
Claim 18
Dependent Claim
19 words
The photosensitive composition as defined in claim 14 wherein said component (b) is selected from the group consisting of
Claim 19
Dependent Claim
116 words
A process for producing a visible image comprising the steps of A. providing a photosensitive element comprising a support containing a compoSition comprising a. an essentially colorless, oxidizable, nitrogen-containing, organic color generator, which when contained in said composition, is stable to oxidation by atmospheric oxygen under normal room and storage conditions but which is oxidizable to a colored material and b. a photo-oxidant containing a heterocyclic nitrogen atom which is substituted by a member selected from the group consisting of an alkoxy group and an acyloxy group, said photo-oxidant being capable of oxidizing said color generator to a colored material when subjected to actinic radiation; and B. exposing said element to a pattern of actinic radiation.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |