US5310640A
Expired / Lapsed
US
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Thermally processable imaging element comprising an electroconductive layer and a backing layer.
Assignee: Carestream Health Inc
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Filing: 1993-06-02
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Granted: 1994-05-10
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Expires: 2013-06-02
Abstract
Abstract Thermally processable imaging elements in which the image is formed by imagewise heating or by imagewise exposure to light followed by uniform heating are provided with both a backing layer and an electroconductive layer to reduce static electricity effects and improve conveyance through processing equipment. The backing layer is an outermost layer and is located on the side of the support opposite to the imaging layer whereas the electroconductive layer is an inner layer and can be disposed on either side of the support.
Inventors
- 👤 Louis J. Markin
- 👤 Diane E. Kestner
- 👤 Wojciech M. Przezdziecki
- 👤 Peter J. Cowdery-Corvan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:04
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/49872; B41M2205/00; B41M2205/04; B41M2205/36; B41M5/426; B41M5/44; Y; Y10; Y10S; Y10S430/00; Y10S430/151; Y10S430/162
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
91 words
A thermally processable imaging element, said element comprising: (1) a support; (2) a thermographic or photothermographic imaging layer on one side of said support; (3) a backing layer which is an outermost layer and is located on the side of said support opposite to said imaging layer, said backing layer comprising a binder and a matting agent dispersed therein; and (4) an electroconductive layer which is an inner layer and is located on either side of said support, said electroconductive layer having an internal resistivity of less than 5×10 10 ohms/square.
Claim 2
Dependent Claim
91 words
A thermally processable imaging element, said element comprising: (1) a support; (2) a thermographic or photothermographic imaging layer on one side of said support; (3) a backing layer which is an outermost layer and is located on the side of said support opposite to said imaging layer, said backing layer comprising a binder and a matting agent dispersed therein; and (4) an electroconductive layer which is an inner layer and is located on either side of said support, said electroconductive layer having an internal resistivity of less than 5×10 10 ohms/square.
Claim 3
Dependent Claim
18 words
A thermally processable imaging element as claimed in claim 1, wherein said support is a poly(ethylene terephthalate) film.
Claim 4
Dependent Claim
48 words
A thermally processable imaging element as claimed in claim 1 wherein said imaging layer comprises: (a) photographic silver halide, (b) an image-forming combination comprising (i) an organic silver salt oxidizing agent, with (ii) a reducing agent for the organic silver salt oxidizing agent, and (c) a toning agent.
Claim 5
Dependent Claim
47 words
A thermally processable imaging element as claimed in claim 1, wherein said imaging layer comprises: (a) photographic silver halide, (b) an image-forming combination comprising (i) silver behenate, with (ii) a phenolic reducing agent for the silver behenate, (c) a succinimide toning agent, and (d) an image stabilizer.
Claim 6
Dependent Claim
19 words
A thermally processable imaging element as claimed in claim 1, wherein said backing layer is comprised of poly(silicic acid).
Claim 7
Dependent Claim
22 words
A thermally processable imaging element as claimed in claim 1, wherein said backing layer is comprised of poly(silicic acid) and poly(vinyl alcohol).
Claim 8
Dependent Claim
18 words
A thermally processable imaging element as claimed in claim 1, wherein said backing layer is a polymethylmethacrylate layer.
Claim 9
Dependent Claim
24 words
A thermally processable imaging element as claimed in claim 1, wherein said electroconductive layer has an internal resistivity of less than 1×10 10 ohms/square.
Claim 10
Dependent Claim
18 words
A thermally processable imaging element as claimed in claim 1, wherein said electroconductive layer is a nickel layer.
Claim 11
Dependent Claim
17 words
A thermally processable imaging element as claimed in claim 1, wherein said electroconductive layer comprises cuprous iodide.
Claim 12
Dependent Claim
21 words
A thermally processable imaging element as claimed in claim 1, wherein said electroconductive layer comprises a colloidal gel of vanadium pentoxide.
Claim 13
Dependent Claim
93 words
A thermally processable imaging element, said element comprising: (1) a support; (2) a thermographic or photothermographic imaging layer on one side of said support; (3) an overcoat layer overlying said imaging layer; (4) a backing layer which is an outermost layer and is located on the side of said support opposite to said imaging layer, said backing layer comprising a binder and a matting agent dispersed therein; and (5) an electroconductive layer interposed between said support and said backing layer, said electroconductive layer having an internal resistivity of less than 5×10 10 ohms/square.
Claim 14
Dependent Claim
93 words
A thermally processable imaging element, said element comprising: (1) a support; (2) a thermographic or photothermographic imaging layer on one side of said support; (3) an overcoat layer overlying said imaging layer; (4) a backing layer which is an outermost layer and is located on the side of said support opposite to said imaging layer, said backing layer comprising a binder and a matting agent dispersed therein; and (5) an electroconductive layer interposed between said support and said backing layer, said electroconductive layer having an internal resistivity of less than 5×10 10 ohms/square.
Claim 15
Dependent Claim
22 words
A thermally processable imaging element as claimed in claim 12, wherein said overcoat layer is comprised of poly(silicic acid) and poly(vinyl alcohol).
Claim 16
Dependent Claim
93 words
A thermally processable imaging element, said element comprising: (1) a support; (2) a thermographic or photothermographic imaging layer on one side of said support; (3) an overcoat layer overlying said imaging layer; (4) a backing layer which is an outermost layer and is located on the side of said support opposite to said imaging layer, said backing layer comprising a binder and a matting agent dispersed therein; and (5) an electroconductive layer interposed between said support and said backing layer, said electroconductive layer having an internal resistivity of less than 5×10 10 ohms/square.
Claim 17
Dependent Claim
93 words
A thermally processable imaging element, said element comprising: (1) a support; (2) a thermographic or photothermographic imaging layer on one side of said support; (3) an overcoat layer overlying said imaging layer; (4) a backing layer which is an outermost layer and is located on the side of said support opposite to said imaging layer, said backing layer comprising a binder and a matting agent dispersed therein; and (5) an electroconductive layer interposed between said support and said backing layer, said electroconductive layer having an internal resistivity of less than 5×10 10 ohms/square.
Claim 18
Dependent Claim
22 words
A thermally processable imaging element as claimed in claim 14, wherein said overcoat layer is comprised of poly(silicic acid) and poly(vinyl alcohol).
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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) | 1997-05-09 | 1997-11-08 | 1998-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-09 | 2001-11-08 | 2002-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-09 | 2005-11-08 | 2006-05-10 | $7700.00 | Window Closed / Lapsed |