Patent US5624484A successfully refreshed from Google Patents.
US5624484A
Expired / Lapsed
US
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Liquid composition and ink set, and image-forming process and apparatus using the same
Assignee: Canon Inc
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Filing: 1995-07-06
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Granted: 1997-04-29
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Expires: 2015-07-06
Abstract
Abstract Disclosed herein is a liquid composition comprising a cationic substance, wherein the liquid composition contains polyallylamine as the cationic substance, and glycerol, the essential component as a water-soluble organic solvent, in an amount of not less than 5% by weight based on the total weight of the liquid composition.
Inventors
- 👤 Katsuhiko Takahashi
- 👤 Yutaka Kurabayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:30
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/40; C09D11/54
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
41 words
A liquid composition containing no coloring material comprising polyallylamine, glycerol and a water-soluble organic solvent other than glycerol, said glycerol being contained in an amount of not less than 5% by weight based on the total weight of the liquid composition.
Claim 2
Dependent Claim
41 words
A liquid composition containing no coloring material comprising polyallylamine, glycerol and a water-soluble organic solvent other than glycerol, said glycerol being contained in an amount of not less than 5% by weight based on the total weight of the liquid composition.
Claim 3
Dependent Claim
27 words
The liquid composition according to claim 1, further comprising at least one water-soluble organic solvent selected from the group consisting of ethylene glycol, diethylene glycol and thiodiglycol.
Claim 4
Dependent Claim
41 words
The liquid composition according to claim 1, wherein the polyallylamine has at least one peak in a molecular weight region of not lower than 1,500 but not higher than 10,000 in its molecular weight distribution as measured by means of GPC.
Claim 5
Dependent Claim
52 words
The liquid composition according to claim 1, further comprising a cationic substance selected from the group consisting of primary, secondary and tertiary amine salts, which salt has at least one peak in a molecular weight region of not higher than 1,000 in its molecular weight distribution as measured by means of GPC.
Claim 6
Dependent Claim
76 words
The liquid composition according to claim 1, wherein the liquid position comprises a cationic substance having at least one peak in a molecular weight region of not higher than 1,000 in its molecular weight distribution as determined by means of GPC, and a cationic substance having at least one peak in a molecular weight region of not lower than 1,500 but not higher than 10,000 in its molecular weight distribution as determined by means of GPC.
Claim 7
Dependent Claim
10 words
The liquid composition according to claim 1, further comprising water.
Claim 8
Dependent Claim
30 words
The liquid composition according to claim 1, wherein the polyallylamine is contained in a range of from 0.05 to 20% by weight based on the total weight of the composition.
Claim 9
Dependent Claim
35 words
The liquid composition according to claim 1, wherein the water-soluble organic solvent other than glycerol is contained in a range of from 5 to 40% by weight based on the total weight of the composition.
Claim 10
Dependent Claim
19 words
The liquid composition according to claim 3, wherein the polyallylamine is in the form of the hydrochloride or acetate.
Claim 11
Dependent Claim
35 words
An ink set comprising in combination the liquid composition according to any one of claims 1, 2 or 3 to 9 and at least one of yellow, magenta, cyan, black, red, blue and green inks.
Claim 12
Dependent Claim
30 words
An ink set comprising in combination the liquid composition according to any one of claims 1, 2 or 3 to 9 and three inks of yellow, magenta and cyan colors.
Claim 13
Dependent Claim
31 words
An ink set comprising in combination the liquid composition according to any one of claims 1, 2 or 4 to 9 and four inks of yellow, magenta, cyan and black colors.
Claim 14
Dependent Claim
14 words
The ink set according to claim 10, wherein the inks contain an anionic compound.
Claim 15
Dependent Claim
14 words
The ink set according to claim 11, wherein the inks contain an anionic compound.
Claim 16
Dependent Claim
14 words
The ink set according to claim 12, wherein the inks contain an anionic compound.
Claim 17
Dependent Claim
18 words
The ink set according to claim 10, wherein the inks contain a water-soluble dye having an anionic group.
Claim 18
Dependent Claim
18 words
The ink set according to claim 11, wherein the inks contain a water-soluble dye having an anionic group.
Claim 19
Dependent Claim
18 words
The ink set according to claim 12, wherein the inks contain a water-soluble dye having an anionic group.
Claim 20
Dependent Claim
17 words
The ink set according to claim 10, wherein the inks contain a pigment and an anionic compound.
Claim 21
Dependent Claim
17 words
The ink set according to claim 11, wherein the inks contain a pigment and an anionic compound.
Claim 22
Dependent Claim
17 words
The ink set according to claim 12, wherein the inks contain a pigment and an anionic compound.
Claim 23
Dependent Claim
55 words
A process of forming an image, which comprises the steps of (A) applying the liquid composition according to any one of claims 1, 2 or 3 to 9 to at least an image-forming region of a recording medium and (B) applying an ink comprising an anionic compound to the recording medium by an ink-jet system.
Claim 24
Dependent Claim
17 words
The image-forming process according to claim 22, wherein the ink-jet system is an On-Demand type ink-jet system.
Claim 25
Dependent Claim
21 words
The image-forming process according to claim 22, wherein the liquid composition is applied to the recording medium by an ink-jet system.
Claim 26
Dependent Claim
24 words
The image-forming process according to claim 22, wherein the ink-jet system is an ink-jet system in which thermal energy is applied to the ink.
Claim 27
Dependent Claim
24 words
The image-forming process according to claim 23, wherein the ink-jet system is an ink-jet system in which thermal energy is applied to the ink.
Claim 28
Dependent Claim
24 words
The image-forming process according to claim 24, wherein the ink-jet system is an ink-jet system in which thermal energy is applied to the ink.
Claim 29
Dependent Claim
18 words
The image-forming process according to claim 22, wherein the step (A) is conducted prior to the step (B).
Claim 30
Dependent Claim
18 words
The image-forming process according to claim 22, wherein the step (A) is conducted subsequently to the step (B).
Claim 31
Dependent Claim
16 words
An image forming apparatus comprising the ink set according to claim 10 and an ink-jet means.
Claim 32
Dependent Claim
16 words
An image forming apparatus comprising the ink set according to claim 11 and an ink-jet means.
Claim 33
Dependent Claim
16 words
An image forming apparatus comprising the ink set according to claim 12 and an ink-jet means.
Claim 34
Dependent Claim
55 words
An image forming apparatus comprising the first recording unit equipped with a container part containing the liquid composition according to any one of claims 1, 2 or 3 to 9 and an ejection means therefor, and the second recording unit equipped with container parts separately containing inks comprising an anionic compound and ejection means therefor.
Claim 35
Dependent Claim
16 words
The image forming apparatus according to claim 33, wherein the ejection means is an ink-jet means.
Claim 36
Dependent Claim
30 words
The image forming apparatus according to claim 30, wherein the ink-jet means is a means in which thermal energy is applied to the ink to form droplets of the ink.
Claim 37
Dependent Claim
30 words
The image forming apparatus according to claim 31, wherein the ink-jet means is a means in which thermal energy is applied to the ink to form droplets of the ink.
Claim 38
Dependent Claim
30 words
The image forming apparatus according to claim 32, wherein the ink-jet means is a means in which thermal energy is applied to the ink to form droplets of the ink.
Claim 39
Dependent Claim
30 words
The image forming apparatus according to claim 34, wherein the ink-jet means is a means in which thermal energy is applied to the ink to form droplets of the ink.
Claim 40
Dependent Claim
106 words
A liquid composition comprising a cationic substance, glycerol and a water-soluble organic solvent other than glycerol, said glycerol being contained in an amount of not less than 5% by weight based on the total weight of the liquid composition, and said cationic substance comprising a compound having at least one peak in a molecular weight region of not higher than 1,000 in its molecular weight distribution as determined by means of GPC and a compound having at least one peak in a molecular weight region of not lower than 1,500 but not higher than 10,000 in its molecular weight distribution as determined by means of GPC.
Claim 41
Dependent Claim
106 words
A liquid composition comprising a cationic substance, glycerol and a water-soluble organic solvent other than glycerol, said glycerol being contained in an amount of not less than 5% by weight based on the total weight of the liquid composition, and said cationic substance comprising a compound having at least one peak in a molecular weight region of not higher than 1,000 in its molecular weight distribution as determined by means of GPC and a compound having at least one peak in a molecular weight region of not lower than 1,500 but not higher than 10,000 in its molecular weight distribution as determined by means of GPC.
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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) | 2000-04-28 | 2000-10-28 | 2001-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-28 | 2004-10-28 | 2005-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-28 | 2008-10-28 | 2009-04-29 | $7700.00 | Window Closed / Lapsed |