US3772027A
Expired / Lapsed
US
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Photosensitive element containing a photosensitive crystalline polyacetylenic compound and a photoconductive inorganic metal salt
Assignee: Eastman Kodak Co
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Filing: 1972-02-04
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Granted: 1973-11-13
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Expires: 1992-02-04
Abstract
Abstract The sensitivity of radiation-sensitive polyyne compounds may be extended to longer wavelengths by the incorporation of inorganic salt sensitizers, such as titanium dioxide, zinc oxide, cadmium iodide, and cadmium sulfide.
Inventors
- 👤 G Luckey
- 👤 C Deboer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:31
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/025; G03C; G03C1/00; G03C1/705
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
37 words
A composition as set forth in claim 1, wherein said polyacetylenic compound is selected from the group consisting of lower alkyl esters of diyne dioic acid, polyacetylenic polyoic acid alkylamides, polyacetylenic amine salts, and diyne diol urethanes.
Claim 2
Dependent Claim
48 words
A composition comprising a radiation-sensitive crystalline polyacetylenic compound having a minimum of two acetylenic linkages as a conjugated system and a sensitizing amount of a photoconductive inorganic metal salt, wherein said photocOnductive salt is selected from the group consisting of metal oxides, sulfides, oxychlorides, and non-silver metal halides.
Claim 3
Dependent Claim
27 words
A composition as set forth in claim 3, wherein said salt is selected from the group consisting of titanium dioxide, zinc oxide, cadmium iodide, and cadmium sulfide.
Claim 4
Dependent Claim
41 words
An element comprising a carrier, a radiation-sensitive crystalline polyacetylenic compound having a minimum of two acetylenic linkages as a conjugated system, and a sensitizing amount of a photoconductive inorganic metal salt having an energy band gap greater than 2.5 electron volts.
Claim 5
Dependent Claim
26 words
An element as set forth in claim 5, wherein said carrier comprises a support to which is adhered a binder having said polyacetylenic compound dispersed therein.
Claim 6
Dependent Claim
13 words
An element as set forth in claim 6, wherein said binder is gelatin.
Claim 7
Dependent Claim
14 words
An element as set forth in claim 5, wherein said salt is titanium dioxide.
Claim 8
Dependent Claim
14 words
An element as set forth in claim 5, wherein said salt is zinc oxide.
Claim 9
Dependent Claim
37 words
An element as set forth in claim 6, wherein said polyacetylenic compound is selected from the group consisting of lower alkyl esters of diyne dioic acid, polyacetylenic polyoic acid alkylamides, polyacetylenic amine salts, and diyne diol urethanes.
Claim 10
Dependent Claim
45 words
An element comprising a carrier, a radiation-sensitive crystalline polyacetylenic compound having a minimum of two acetylenic linkages as a conjugated system, and a sensitizing amount of a photoconductive inorganic metal salt selected from the group consisting of metal oxides, sulfides, oxychlorides, and non-silver metal halides.
Claim 11
Dependent Claim
22 words
An element as set forth in claim 11, wherein said photoconductive salt has energy band gaps greater than about 2.5 electron volts.
Claim 12
Dependent Claim
26 words
An element as set forth in claim 12, wherein said carrier comprises a support to which is adhered a binder having said polyacetylenic compound dispersed therein.
Claim 13
Dependent Claim
13 words
An element as set forth in claim 13, wherein said binder is gelatin.
Claim 14
Dependent Claim
43 words
An element comprising a support having coated thereon a layer comprising a binder, a radiation-sensitive crystalline lower alkyl ester of diyne dioic acid, and a sensitizing amount of a photoconductive inorganic metal salt having an energy band gap greater than 2.5 electron volts.
Claim 15
Dependent Claim
19 words
An element as set forth in claim 15, wherein said ester is the monomethyl ester of 10,12-docosadiyne dioic acid.
Claim 16
Dependent Claim
14 words
An element as set forth in claim 16, wherein said salt is titanium dioxide.
Claim 17
Dependent Claim
14 words
An element as set forth in claim 16, wherein said salt is zinc oxide.
Claim 18
Dependent Claim
51 words
An element comprising a support having coated thereon a layer comprising a binder, a crystalline polyacetylenic compound having a minimum of two acetylenic linkages as a conjugated system, and a sensitizing amount of a photoconductive metal salt selected from the group consisting of metal oxides, sulfides, oxychlorides, and non-silver metal halides.
Claim 19
Dependent Claim
37 words
An element as set forth in claim 19, wherein said polyacetylenic compound is selected from the group consisting of lower alkyl esters of diyne dioic acid, polyacetylenic polyoic acid alkylamides, polyacetylenic amine salts, and diyne diol urethanes.
Claim 20
Dependent Claim
27 words
An element as set forth in claim 19, wherein said salt is selected from the group consisting of titanium dioxide, zinc oxide, cadmium iodide, and cadmium sulfide.
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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |