US3772011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Print-out elements and methods using photoconductors and polygnes
Assignee: Eastman Kodak Co
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Filing: 1971-11-04
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Granted: 1973-11-13
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Expires: 1991-11-04
Abstract
Abstract Print-out elements and methods are described which involve a crystalline polyacetylenic compound in, or in contact with a photoconductive layer. Visible images are obtained with these layers in contact by imagewise exposure coupled with the application of an electric potential. In the absence of an applied potential, the elements described are stable under normal room-light handling conditions.
Inventors
- 👤 A Guevara
- 👤 P Borsenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:21
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/20; B41M5/205
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
20 words
An element as described in claim 1 wherein said polyacetylenic compound is in a separate layer over said photoconductive composition.
Claim 2
Dependent Claim
17 words
An element as described in claim 1 wherein said polyacetylenic compound is dispersed in said photoconductive composition.
Claim 3
Dependent Claim
16 words
An element as described in claim 1 wherein said polyacetylenic compound is 10,12-docosadiynedioic acid monomethyl ester.
Claim 4
Dependent Claim
14 words
An element as described in claim 1 wherein said polyacetylenic compound is methyl-21-(N-(2-hydroxyethyl) carbamoyl)-10,12-heneicosadiyneoate.
Claim 5
Dependent Claim
13 words
An element as described in claim 1 wherein said polyacetylenic compound is octa-3,5-diynylene-1,8-bis-n-butylcarbamate.
Claim 6
Dependent Claim
14 words
An element as described in claim 1 wherein said polyacetylenic compound is hexylammonium-20-(N-hexylcarbamoyl)-9, 11-eicosadiyne-1-carboxylate.
Claim 7
Dependent Claim
14 words
An element as described in claim 1 wherein said polyacetylenic compound is 4,6-decadiyne-1,10-diol dimesylate.
Claim 8
Dependent Claim
13 words
An element as described in claim 1 wherein said polyacetylenic compound is deca-4,6-diynylene-1,10-bisphenylcarbamate.
Claim 9
Dependent Claim
13 words
An element as described in claim 1 wherein said polyacetylenic compound is 2.4-hexadiyne-1,6-diol-bis-p-tolylurethane.
Claim 10
Dependent Claim
13 words
An element as described in claim 1 wherein said polyacetylenic compound is 1,6-bismorpholino-2,4-hexadiyne.
Claim 11
Dependent Claim
20 words
An element as described in claim 1 wherein said photoconductive layer is comprised of a film-forming binder and a photoconductor.
Claim 12
Dependent Claim
36 words
A multilayered direct print-out element comprising a conductive support bearing a layer of a photoconductive composition having thereon a layer of a crystalline polyacetylenic compound having a minimum of two acetylenic linkages as a conjugated system.
Claim 13
Dependent Claim
17 words
An element as described in claim 13 wherein said layer of polyacetylenic compound contains a binder material.
Claim 14
Dependent Claim
13 words
An element as described in claim 14 wherein said binder material is gelatin.
Claim 15
Dependent Claim
53 words
A direct print-out element comprising a translucent conductive support bearing a layer of a translucent photoconductive composition which has thereon a layer of a crystalline polyacetylenic compound having a minimum of two acetylenic linkages as a conjugated system, said crystalline compound having an average particle size of about 0.1 to about 1.5 microns.
Claim 16
Independent Claim
78 words
A method of forming direct print-out images comprising the steps of imagewise exposing a radiation sensitive element comprising a support providing a conductive surface portion bearing a photoconductive composition having in contiguous relationship therewith a crystalline polyacetylenic compound having a minimum of two acetylenic linkages as a conjugated system, said exposure occurring during the application of an electric potential across said photoconductive composition and the contiguous polyacetylenic compound to imagewise polymerize said compound to a colored polymeric product.
Claim 17
Independent Claim
68 words
A method of forming direct print-out images comprising the steps of (1) placing together (a) a layer of a crystalline polyacetylenic compound having a minimum of two acetylenic linkages as a conjugated system and (b) a layer of a photoconductive composition and (2) imagewise exposing said photoconductive composition during the application of an electric potential across said layers to imagewise polymerize said compound to a colored polymeric product.
Claim 18
Independent Claim
43 words
A method of forming direct print-out images comprising the steps of applying an electric potential across a sensitive composition comprising a photoconductive composiTion in contiguous relationship with a crystalline polyacetylenic compound and imagewise exposing said sensitive composition to imagewise polymerize said polyacetylenic compound.
Claim 19
Dependent Claim
34 words
The invention as described in claim 19 wherein said sensitive composition comprises a mixture of a binder, a photoconductor and a crystalline polyacetylenic having a minimum of two acetylenic linkages as a conjugated system.
Claim 20
Dependent Claim
42 words
The invention as described in claim 19 wherein said sensitive composition comprises a layer of a photoconductor and a polymeric binder in contact with a layer of a crystalline polyacetylenic compound having a minimum of two acetylenic linkages as a conjugated system.
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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) | 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 |