US6300049B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imaging element containing an electrically-conductive layer
Assignee: Eastman Kodak Co
•
Filing: 2000-12-12
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Granted: 2001-10-09
•
Expires: 2020-12-12
Abstract
Abstract The present invention can relate to an imaging element including a support, at least one image forming layer superposed on the support, at least one transparent magnetic recording layer superposed on the support, and an electrically-conductive layer superposed on the support. The electrically-conductive layer may include a sulfonated polyurethane film-forming binder and at least one metal antimonate particle.
Inventors
- 👤 Dennis J. Eichorst
- 👤 Debasis Majumdar
- 👤 Robert J. Kress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:28
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/89; G03C5/00; G03C5/12; G03C5/14; G03C1/795; G03C1/7954; G03C2001/7952
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
51 words
An imaging element comprising: a support; at least one image forming layer superposed on the support; at least one transparent magnetic recording layer superposed on the support; and an electrically-conductive layer superposed on the support; said electrically-conductive layer comprising a sulfonated polyurethane film-forming binder and at least one metal antimonate particle.
Claim 2
Dependent Claim
51 words
An imaging element comprising: a support; at least one image forming layer superposed on the support; at least one transparent magnetic recording layer superposed on the support; and an electrically-conductive layer superposed on the support; said electrically-conductive layer comprising a sulfonated polyurethane film-forming binder and at least one metal antimonate particle.
Claim 3
Dependent Claim
15 words
An imaging element according to claim 1 , wherein the metal antimonate particle is electrically-conductive.
Claim 4
Dependent Claim
49 words
An imaging element according to claim 1 , wherein the metal antimonate particle is of the formula: M +2 Sb +5 2 O 6 ; where M +2 =Zn +2 , Ni +2 , Mg +2 , Fe +2 , Cu +2 , Mn +2 or Co +2 .
Claim 5
Dependent Claim
43 words
An imaging element according to claim 1 , wherein the metal antimonate particle is of the formula: M +3 Sb +5 O 4 ; where M +2 =In +2 , Fe +3 , Al +3 , Sc +3 , or Cr +3 .
Claim 6
Dependent Claim
19 words
An imaging element according to claim 1 , wherein the metal antimonate particle is ZnSb 2 O 6 .
Claim 7
Dependent Claim
17 words
An imaging element according to claim 1 , wherein the metal antimonate particle is InSbO 4 .
Claim 8
Dependent Claim
25 words
An imaging element according to claim 1 , wherein said electrically-conductive layer has a dry weight coverage of from 2 to 2000 mg/m 2 .
Claim 9
Dependent Claim
24 words
The imaging element of claim 1 , wherein said electrically-conductive layer has a dry weight coverage of from 5 to 1000 mg/m 2 .
Claim 10
Dependent Claim
20 words
An imaging element according to claim 1 , wherein the metal antimonate particle has a rutile or rutile-related crystalographic structure.
Claim 11
Dependent Claim
22 words
An imaging element according to claim 1 , wherein the metal antimonate particle has a particle size less than about 0.2 microns.
Claim 12
Dependent Claim
19 words
The imaging element of claim 1 , wherein the sulfonated polyurethane film-forming binder comprises an anionic aliphatic sulfonated polyurethane.
Claim 13
Dependent Claim
75 words
An imaging element comprising: a support; at least one image forming layer image-forming layer superposed on the support; at least one transparent magnetic recording layer superposed on the support; and an electrically-conductive layer superposed on the support; said electrically-conductive layer comprising a sulfonated polyurethane film-forming binder and from 20 to 80 volume % of electrically-conductive metal antimonate particles wherein said electrically-conductive layer has a dry weight coverage of from 2 to 2000 mg/m 2 .
Claim 14
Dependent Claim
75 words
An imaging element comprising: a support; at least one image forming layer image-forming layer superposed on the support; at least one transparent magnetic recording layer superposed on the support; and an electrically-conductive layer superposed on the support; said electrically-conductive layer comprising a sulfonated polyurethane film-forming binder and from 20 to 80 volume % of electrically-conductive metal antimonate particles wherein said electrically-conductive layer has a dry weight coverage of from 2 to 2000 mg/m 2 .
Claim 15
Dependent Claim
24 words
The imaging element of claim 12 , wherein said electrically-conductive layer comprises a dry weight coverage of from 5 to 1000 mg/m 2 .
Claim 16
Dependent Claim
19 words
The imaging element of claim 12 , wherein the sulfonated polyurethane film-forming binder comprises an anionic aliphatic sulfonated polyurethane.
Claim 17
Dependent Claim
71 words
A photographic film comprising: a support; a silver halide emulsion layer on a side of said support; a transparent magnetic recording layer on an opposite side of said support; said transparent magnetic recording layer comprising ferromagnetic particles dispersed in a film-forming polymeric binder; and an electrically-conductive layer underlying said transparent magnetic recording layer; said electrically-conductive layer comprising a sulfonated polyurethane film-forming binder and from 20 to 80% electrically-conductive metal antimonate particles.
Claim 18
Dependent Claim
71 words
A photographic film comprising: a support; a silver halide emulsion layer on a side of said support; a transparent magnetic recording layer on an opposite side of said support; said transparent magnetic recording layer comprising ferromagnetic particles dispersed in a film-forming polymeric binder; and an electrically-conductive layer underlying said transparent magnetic recording layer; said electrically-conductive layer comprising a sulfonated polyurethane film-forming binder and from 20 to 80% electrically-conductive metal antimonate particles.
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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) | 2004-10-08 | 2005-04-09 | 2005-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-10-08 | 2009-04-09 | 2009-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-10-08 | 2013-04-09 | 2013-10-09 | $7700.00 | Window Closed / Lapsed |