Patent US6558740B1 successfully refreshed from Google Patents.
US6558740B1
Expired / Lapsed
US
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Printing medium, production process thereof and image-forming process using the medium
Assignee: Canon Inc
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Filing: 1999-06-11
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Granted: 2003-05-06
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Expires: 2019-06-11
Abstract
Abstract Disclosed herein is a printing medium comprising a substrate and an ink-receiving layer which comprises an alumina hydrate surface-treated with a coupling agent and is provided on the substrate.
Inventors
- 👤 Tsuyoshi Santo
- 👤 Hiroyuki Sugata
- 👤 Yuji Kondo
- 👤 Hiroshi Tomioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:09
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5218; B41M5/5227
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
54 words
A process for producing a printing medium comprising forming an ink-receiving layer on a substrate, wherein the ink-receiving layer is formed by applying a dispersion comprising a coupling agent or a hydrolyzate thereof, an alumina hydrate, a binder and water to the substrate and then drying the dispersion to make the alumina hydrate hydrophobic.
Claim 2
Dependent Claim
54 words
A process for producing a printing medium comprising forming an ink-receiving layer on a substrate, wherein the ink-receiving layer is formed by applying a dispersion comprising a coupling agent or a hydrolyzate thereof, an alumina hydrate, a binder and water to the substrate and then drying the dispersion to make the alumina hydrate hydrophobic.
Claim 3
Dependent Claim
55 words
A process for producing a printing medium comprising forming an ink-receiving layer on a substrate, wherein the ink-receiving layer is formed by applying a dispersion comprising an alumina hydrate surface-treated with a coupling agent to make the alumina hydrate hydrophobic in advance and a polymerizable compound to the substrate and then polymerizing the polymerizable compound.
Claim 4
Dependent Claim
55 words
A process for producing a printing medium comprising forming an ink-receiving layer on a substrate, wherein the ink-receiving layer is formed by applying a dispersion comprising an alumina hydrate surface-treated with a coupling agent to make the alumina hydrate hydrophobic in advance and a polymerizable compound to the substrate and then polymerizing the polymerizable compound.
Claim 5
Dependent Claim
27 words
The process according to claim 1 or 2 , wherein the coupling agent is selected from the group consisting of silane, titanate, aluminum and zirconium coupling agents.
Claim 6
Dependent Claim
33 words
The process according to claim 1 or 2 , wherein the proportion of the area covered with the coupling agent by the surface treatment of the alumina hydrate amounts to 0.1 to 30%.
Claim 7
Dependent Claim
33 words
The process according to claim 1 or 2 , wherein the proportion of the area covered with the coupling agent by the surface treatment of the alumina hydrate amounts to 0.5 to 20%.
Claim 8
Dependent Claim
33 words
The process according to claim 1 or 2 , wherein the proportion of the area covered with the coupling agent by the surface treatment of the alumina hydrate amounts to 0.7 to 15%.
Claim 9
Dependent Claim
27 words
The process according to claim 1 or 2 , wherein the pore volume of the alumina hydrate falls within a range of from 0.1 to 1.0 ml/g.
Claim 10
Dependent Claim
31 words
The process according to claim 1 or 2 , wherein the BET specific surface area of the alumina hydrate falls within a range of from 40 to 500 m 2 /g.
Claim 11
Dependent Claim
27 words
The process according to claim 1 or 2 , wherein the pore volume of the ink-receiving layer falls within a range of from 0.1 to 1.0 ml/g.
Claim 12
Dependent Claim
31 words
The process according to claim 1 or 2 , wherein the BET specific surface area of the ink-receiving layer falls within a range of from 40 to 450 m 2 /g.
Claim 13
Dependent Claim
31 words
The process according to claim 1 or 2 , wherein the mixing ratio by weight of the alumina hydrate to the binder falls within the range of from 1:1 to 30:1.
Claim 14
Dependent Claim
31 words
The process according to claim 1 or 2 , wherein the mixing ratio by weight of the alumina hydrate to the binder falls within the range of from 5:1 to 20:1.
Claim 15
Dependent Claim
38 words
The process according to claim 2 , wherein the polymerizable compound is a polymerizable binder having film-forming properties prior to its polymerization and containing polymerizable functional groups in a proportion of from 10 to 700 groups per molecule.
Claim 16
Dependent Claim
36 words
The process according to claim 13 , wherein the polymerizable binder has tensile strength prior to its polymerization within a range of from 10 to 800 kg/cm 2 as measured in accordance with ASTM D 638.
Claim 17
Dependent Claim
26 words
The process according to claim 2 , wherein the polymerizable binder has a molecular weight within a range of from 10,000 to 600,000 prior toits polymerization.
Claim 18
Dependent Claim
14 words
The process according to claim 2 , wherein the dispersion contains a polymerization initiator.
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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) | 2006-05-05 | 2006-11-04 | 2007-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-05-05 | 2010-11-04 | 2011-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-05-05 | 2014-11-04 | 2015-05-06 | $7700.00 | Window Closed / Lapsed |