US5605750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microporous ink-jet recording elements
Assignee: Eastman Kodak Co
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Filing: 1995-12-29
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Granted: 1997-02-25
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Expires: 2015-12-29
Abstract
Abstract An opaque image-recording element for an ink-jet printer which comprises an opaque substrate having on at least one surface thereof a lower layer of a solvent-absorbing microporous material which comprises: (a) a matrix of substantially water-insoluble thermoplastic organic polymer; (b) finely divided substantially water-insoluble filler particles, of which at least 50 percent by weight are siliceous particles, the filler particles being distributed throughout the matrix and constituting from 40 to 90 percent by weight of the microporous material; (c) a network of interconnecting pores communicating substantially throughout the microporous material, the pores constituting from 35 to 95 percent by volume of the microporous material, and an upper image-forming layer of porous, pseudo-boehmite having an average pore radius of from 10 to 80 ANGSTROM .
Inventors
- 👤 Charles E. Romano
- 👤 Douglas E. Bugner
- 👤 Wayne T. Ferrar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:20
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5218; B41M5/502; B41M5/506; B41M5/5254; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/259; Y10T428/31504; Y10T428/31855; Y10T428/31971
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
122 words
An opaque image-recording element for an ink-jet printer which comprises an opaque support having on at least one surface thereof a lower layer of a solvent-absorbing microporous material comprising: (a) a matrix of substantially water-insoluble thermoplastic organic polymer; (b) finely divided substantially water-insoluble filler particles, of which at least 50 percent by weight are siliceous particles, said filler particles being distributed throughout said matrix and constituting from 40 to 90 percent by weight of said microporous material; (c) a network of interconnecting pores communicating substantially throughout said microporous material, said pores constituting from 35 to 95 percent by volume of said microporous material, and an upper image-forming layer of porous pseudo-boehmite having an average pore radius of from 10 to 80 Å.
Claim 2
Dependent Claim
122 words
An opaque image-recording element for an ink-jet printer which comprises an opaque support having on at least one surface thereof a lower layer of a solvent-absorbing microporous material comprising: (a) a matrix of substantially water-insoluble thermoplastic organic polymer; (b) finely divided substantially water-insoluble filler particles, of which at least 50 percent by weight are siliceous particles, said filler particles being distributed throughout said matrix and constituting from 40 to 90 percent by weight of said microporous material; (c) a network of interconnecting pores communicating substantially throughout said microporous material, said pores constituting from 35 to 95 percent by volume of said microporous material, and an upper image-forming layer of porous pseudo-boehmite having an average pore radius of from 10 to 80 Å.
Claim 3
Dependent Claim
59 words
An image-recording element of claim 1, wherein said substantially water-insoluble thermoplastic organic polymer comprises essentially linear ultrahigh molecular weight polyolefin selected from the group consisting of essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least 10 deciliters/gram, essentially linear ultrahigh molecular weight polypropylene having an intrinsic viscosity of at least 6 deciliters/gram, and mixtures thereof.
Claim 4
Dependent Claim
30 words
An image-recording element of claim 2, wherein said essentially linear ultrahigh molecular weight polyolefin is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least 18 deciliters/gram.
Claim 5
Dependent Claim
23 words
An image-recording element of claim 3, wherein said filler particles constitute from 40 percent to 85 percent by weight of said microporous material.
Claim 6
Dependent Claim
17 words
An image-recording element of claim 3, wherein said siliceous particles of said microporous material are silica particles.
Claim 7
Dependent Claim
18 words
An image-recording element of claim 3, wherein said siliceous particles of said microporous material are precipitated silica particles.
Claim 8
Dependent Claim
23 words
An image-recording element of claim 6, wherein said precipitated silica particles have an average ultimate particle size of less than about 0.1 micrometer.
Claim 9
Dependent Claim
21 words
An image-recording element of claim 1, wherein the porous pseudo-boehmite layer has an average pore radius of 15 to 60 Å.
Claim 10
Dependent Claim
20 words
An image-recording element of claim 1, wherein the porous pseudo-boehmite layer has a pore volume of 0.1 to 2.0 cc/g.
Claim 11
Dependent Claim
17 words
An image-recording element of claim 1, wherein the thickness of said substrate is 50 to 500 micrometers.
Claim 12
Dependent Claim
21 words
An image-recording element of claim 1, wherein the dry thickness of said porous pseudo-boehmite layer is from 0.1 to 20 micrometers.
Claim 13
Dependent Claim
19 words
An image-recording element of claim 1, wherein the dry thickness of said solvent-absorbing layer is 1.0 to 18 mils.
Claim 14
Dependent Claim
16 words
An image-recording element of claim 1, further comprising an ink-permeable protective layer for said image-forming layer.
Claim 15
Dependent Claim
14 words
An image-recording element of claim 13 wherein said protective layer is hydroxypropyl methyl cellulose.
Claim 16
Dependent Claim
20 words
An image-recording element of claim 13, wherein the dry thickness of said protective layer is from 0.1 to 5.0 micrometers.
Claim 17
Dependent Claim
20 words
An image-recording element of claim 1, further comprising at least one priming layer between said substrate and said microporous layer.
Claim 18
Dependent Claim
16 words
A printing process which comprises applying liquid ink droplets to an image-recording element of claim 1.
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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) | 2000-02-25 | 2000-08-26 | 2001-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-25 | 2004-08-26 | 2005-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-25 | 2008-08-26 | 2009-02-25 | $7700.00 | Window Closed / Lapsed |