Patent USRE24477E successfully refreshed from Google Patents.
US5679451A
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Recording medium
Assignee: Canon Inc
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Filing: 1995-10-20
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Granted: 1997-10-21
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Expires: 2015-10-20
Abstract
Abstract Provided is a recording medium comprising a base material, and an ink-receiving layer thereon containing a pigment having an aggregated-particle diameter of from 0.5 to 50 μm and a binder, wherein said ink-receiving layer has a value of BET specific surface area/pore volume within the range of from 50 to 500 m 2 /ml.
Inventors
- 👤 Yuji Kondo
- 👤 Hitoshi Yoshino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:35
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5218; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/259; Y10T428/31
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
56 words
A recording medium comprising a base material, and an ink-receiving layer thereon containing a pigment of an aggregated particle having a particle diameter of from 0.5 to 50 μm and a binder, wherein said ink-receiving layer has a value of BET specific surface area/pore volume within the range of from 50 to 500 m 2 /ml.
Claim 2
Dependent Claim
56 words
A recording medium comprising a base material, and an ink-receiving layer thereon containing a pigment of an aggregated particle having a particle diameter of from 0.5 to 50 μm and a binder, wherein said ink-receiving layer has a value of BET specific surface area/pore volume within the range of from 50 to 500 m 2 /ml.
Claim 3
Dependent Claim
31 words
The recording medium according to claim 1, wherein said ink-receiving layer has a value of BET specific surface area/pore volume within the range of from 50 to 330 m 2 /ml.
Claim 4
Dependent Claim
31 words
The recording medium according to claim 1, wherein said ink-receiving layer has a value of BET specific surface area/pore volume within the range of from 80 to 250 m 2 /ml.
Claim 5
Dependent Claim
28 words
The recording medium according to claim 1, wherein said ink-receiving layer has a BET specific surface area within the range of from 20 to 450 m 2 /g.
Claim 6
Dependent Claim
24 words
The recording medium according to claim 1, wherein said ink-receiving layer has a pore volume within the range of from 0.1 to 1.0 ml/g.
Claim 7
Dependent Claim
14 words
The recording medium according to claim 1, wherein said pigment comprises an alumina hydrate.
Claim 8
Dependent Claim
27 words
The recording medium according to claim 6, wherein an aggregated particle of said alumina hydrate has a zeta potential of 15 mV or higher at pH 6.
Claim 9
Dependent Claim
27 words
The recording medium according to claim 6, wherein an aggregated particle of said alumina hydrate has a zeta potential of 20 mV or higher at pH 6.
Claim 10
Dependent Claim
31 words
The recording medium according to claim 6, wherein said alumina hydrate has a value of BET specific surface area/pore volume within the range of from 40 to 500 m 2 /ml.
Claim 11
Dependent Claim
31 words
The recording medium according to claim 6, wherein said alumina hydrate has a value of BET specific surface area/pore volume within the range of from 40 to 300 m 2 /ml.
Claim 12
Dependent Claim
31 words
The recording medium according to claim 6, wherein said alumina hydrate has a value of BET specific surface area/pore volume within the range of from 65 to 120 m 2 /ml.
Claim 13
Dependent Claim
28 words
The recording medium according to claim 6, wherein said alumina hydrate has a BET specific surface area within the range of from 40 to 500 m 2 /g.
Claim 14
Dependent Claim
24 words
The recording medium according to claim 6, wherein said alumina hydrate has a pore volume within the range of from 0.1 to 1.0 ml/g.
Claim 15
Dependent Claim
12 words
The recording medium according to claim 1, wherein said pigment comprises silica.
Claim 16
Dependent Claim
26 words
The recording medium according to claim 1, wherein the weight ratio of the pigment to the binder is in a range of from 1:1 to 30:1.
Claim 17
Dependent Claim
26 words
The recording medium according to claim 1, wherein the weight ratio of the pigment to the binder is in a range of from 5:1 to 20:1.
Claim 18
Dependent Claim
15 words
The recording medium according to claim 1, wherein the binder is a water-soluble polymeric substance.
Claim 19
Dependent Claim
57 words
The recording medium according to claim 17, wherein the binder is a material selected from the group consisting of polyvinyl alcohol, cation-modified polyvinyl alcohol, anion-modified polyvinyl alcohol, silanol-modified polyvinyl alcohol, starch, gelatin, casein, carboxyethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, SBR, NBR, methyl methacrylate butadiene copolymer, ethylene vinyl acetate copolymer, polyvinyl pyrrolidone, maleic anhydride and acrylic ester copolymer.
Claim 20
Dependent Claim
63 words
A recording medium comprising a base material, and an ink-receiving layer thereon containing a pigment of an aggregated particle having a particle diameter of from 0.5 to 50 μm and a binder, wherein said pigment is an alumina hydrate and said ink-receiving layer has a value of BET specific surface area/pore volume within the range of from 50 to 500 m 2 /ml.
Claim 21
Dependent Claim
63 words
A recording medium comprising a base material, and an ink-receiving layer thereon containing a pigment of an aggregated particle having a particle diameter of from 0.5 to 50 μm and a binder, wherein said pigment is an alumina hydrate and said ink-receiving layer has a value of BET specific surface area/pore volume within the range of from 50 to 500 m 2 /ml.
Claim 22
Dependent Claim
31 words
The recording medium according to claim 19, wherein said ink-receiving layer has a value of BET specific surface area/pore volume within the range of from 50 to 330 m 2 /ml.
Claim 23
Dependent Claim
31 words
The recording medium according to claim 19, wherein said ink-receiving layer has a value of BET specific surface area/pore volume within the range of from 80 to 250 m 2 /ml.
Claim 24
Dependent Claim
28 words
The recording medium according to claim 19, wherein said ink-receiving layer has a BET specific surface area within the range of from 20 to 450 m 2 /g.
Claim 25
Dependent Claim
24 words
The recording medium according to claim 19, wherein said ink-receiving layer has a pore volume within the range of from 0.1 to 1.0 ml/g.
Claim 26
Dependent Claim
26 words
The recording medium according to claim 19, wherein aggregated particles of said alumina hydrate have a zeta potential of 15 mV or higher at pH 6.
Claim 27
Dependent Claim
26 words
The recording medium according to claim 19, wherein aggregated particles of said alumina hydrate have a zeta potential of 20 mV or higher at pH 6.
Claim 28
Dependent Claim
31 words
The recording medium according to claim 19, wherein said alumina hydrate has a value of BET specific surface area/pore volume within the range of from 40 to 500 m 2 /ml.
Claim 29
Dependent Claim
31 words
The recording medium according to claim 19, wherein said alumina hydrate has a value of BET specific surface area/pore volume within the range of from 40 to 300 m 2 /ml.
Claim 30
Dependent Claim
31 words
The recording medium according to claim 19, wherein said alumina hydrate has a value of BET specific surface area/pore volume within the range of from 65 to 120 m 2 /ml.
Claim 31
Dependent Claim
28 words
The recording medium according to claim 19, wherein said alumina hydrate has a BET specific surface area within the range of from 40 to 500 m 2 /g.
Claim 32
Dependent Claim
24 words
The recording medium according to claim 19, wherein said alumina hydrate has a pore volume within the range of from 0.1 to 1.0 ml/g.
Claim 33
Dependent Claim
26 words
The recording medium according to claim 19, wherein the weight ratio of the pigment to the binder is in a range of from 1:1 to 30:1.
Claim 34
Dependent Claim
26 words
The recording medium according to claim 19, wherein the weight ratio of the pigment to the binder is in a range of from 5:1 to 20:1.
Claim 35
Dependent Claim
15 words
The recording medium according to claim 19, wherein the binder is a water-soluble polymeric substance.
Claim 36
Dependent Claim
57 words
The recording medium according to claim 33, wherein the binder is a material selected from the group consisting of polyvinyl alcohol, anion-modified polyvinyl alcohol, cation-modified polyvinyl alcohol, silanol-modified polyvinyl alcohol, starch, gelatin, casein, carboxyethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, SBR, NBR, methyl methacrylate butadiene copolymer, ethylene vinyl acetate copolymer, polyvinyl pyrrolidone, maleic anhydride and acrylic ester copolymer.
Claim 37
Dependent Claim
21 words
A printed material comprising the recording medium according to any one of claims 1 to 26-34 and an image formed thereon.
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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) | 2000-10-20 | 2001-04-21 | 2001-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-20 | 2005-04-21 | 2005-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-20 | 2009-04-21 | 2009-10-21 | $7700.00 | Window Closed / Lapsed |