Patent US1646975A successfully refreshed from Google Patents.
Patent US5281262A successfully refreshed from Google Patents.
US5281262A
Expired / Lapsed
US
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Aqueous pigment ink composition for ball-point pens
Assignee: Mitsubishi Pencil Co Ltd
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Filing: 1992-08-11
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Granted: 1994-01-25
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Expires: 2012-08-11
Abstract
Abstract The present invention provides an aqueous pigment ink for ball-point pen which can inhibit surface tension from extremely deteriorating to protect written letters from blur and which is excellent in non-drying properties and which has lubricating properties enough to smoothly rotate a ball and to decrease friction of a ball seat, whereby a writing performance can be remarkably improved and a comfortable writing performance can be given. The aqueous pigment ink composition for ball-point pens of the present invention is characterized by comprising a pigment, a dispersant, water and an adduct of at least one polyhydric alcohol with an alkylene oxide, the polyhydric alcohol being selected from the group consisting of polyglycerin, glycerin, trimethylolpropane and a mixture thereof.
Inventors
- 👤 Mizue Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:54
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/16; C09D11/18
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
146 words
An aqueous pigment ink composition for ball-point pens, said ink comprising a pigment, a dispersant, water, and at least one adduct of polyhydric alcohol with an alkylene oxide selected from the group consisting of an adduct of polyglycerin with an alkylene oxide, an adduct of glycerin with an alkylene oxide in which 1 to 150 mols of the alkylene oxide are added to glycerin, an adduct of trimethylolpropane with an alkylene oxide, and a mixture thereof, wherein the about of the adduct of polyhydric alcohol with the alkylene oxide is in the range of 0.5 to 40% by weight with respect to the total weight of the composition, wherein the dispersant is at least one dispersant selected from the group consisting of water-soluble polymers, polyoxyalkylene higher fatty esters, higher fatty acid partial esters of polyhydric alcohols, alkylated sulfonates of higher fatty acid amides and alkylallyl sulfonates.
Claim 2
Dependent Claim
146 words
An aqueous pigment ink composition for ball-point pens, said ink comprising a pigment, a dispersant, water, and at least one adduct of polyhydric alcohol with an alkylene oxide selected from the group consisting of an adduct of polyglycerin with an alkylene oxide, an adduct of glycerin with an alkylene oxide in which 1 to 150 mols of the alkylene oxide are added to glycerin, an adduct of trimethylolpropane with an alkylene oxide, and a mixture thereof, wherein the about of the adduct of polyhydric alcohol with the alkylene oxide is in the range of 0.5 to 40% by weight with respect to the total weight of the composition, wherein the dispersant is at least one dispersant selected from the group consisting of water-soluble polymers, polyoxyalkylene higher fatty esters, higher fatty acid partial esters of polyhydric alcohols, alkylated sulfonates of higher fatty acid amides and alkylallyl sulfonates.
Claim 3
Dependent Claim
20 words
The aqueous pigment ink composition for ball-point pens according to claim 1 wherein the dispersant comprising a water soluble polymer.
Claim 4
Dependent Claim
112 words
An aqueous pigment ink composition for ball-point pens which comprises 0.5 to 40% by weight of an adduct of polyglycerin with the alkylene oxide in which 1 to 60 mols of the alkylene oxide are added to 2 to 4 mols of glycerin, 2 to 30% by weight of pigment, 0.1 to 10% by weight of dispersant, and 40 to 90% by weight of water with respect to the total weight of the composition, wherein the dispersant is at least one dispersant selected from the group consisting of water-soluble polymers, polyoxyalkylene higher fatty esters, higher fatty acid partial esters of polyhydric alcohols, alkylated sulfonates of higher fatty acid amines and alkylallyl sulfonates.
Claim 5
Dependent Claim
112 words
An aqueous pigment ink composition for ball-point pens which comprises 0.5 to 40% by weight of an adduct of polyglycerin with the alkylene oxide in which 1 to 60 mols of the alkylene oxide are added to 2 to 4 mols of glycerin, 2 to 30% by weight of pigment, 0.1 to 10% by weight of dispersant, and 40 to 90% by weight of water with respect to the total weight of the composition, wherein the dispersant is at least one dispersant selected from the group consisting of water-soluble polymers, polyoxyalkylene higher fatty esters, higher fatty acid partial esters of polyhydric alcohols, alkylated sulfonates of higher fatty acid amines and alkylallyl sulfonates.
Claim 6
Dependent Claim
19 words
The aqueous pigment ink composition for ball-point pens according to claim 3 wherein the dispersant comprises a water-soluble polymer.
Claim 7
Dependent Claim
93 words
An aqueous pigment ink composition for ball-point pens which comprises 0.5 to 40% by weight of an adduct of glycerin with the alkylene oxide, 2 to 30% by weight of pigment, 0.1 to 10% by weight of dispersant, and 40 to 90% by weight of water with respect to the total weight of the composition, wherein the dispersant is at least one dispersant selected from the group consisting of water-soluble polymers, polyoxyalkylene higher fatty esters, higher fatty acid partial esters of polyhydric alcohols, alkylated sulfonates of higher fatty acid amides and alkylallyl sulfonates.
Claim 8
Dependent Claim
93 words
An aqueous pigment ink composition for ball-point pens which comprises 0.5 to 40% by weight of an adduct of glycerin with the alkylene oxide, 2 to 30% by weight of pigment, 0.1 to 10% by weight of dispersant, and 40 to 90% by weight of water with respect to the total weight of the composition, wherein the dispersant is at least one dispersant selected from the group consisting of water-soluble polymers, polyoxyalkylene higher fatty esters, higher fatty acid partial esters of polyhydric alcohols, alkylated sulfonates of higher fatty acid amides and alkylallyl sulfonates.
Claim 9
Dependent Claim
20 words
The aqueous pigment ink composition for ball-point pens according to claim 5 wherein the dispersant comprises a water soluble polymer.
Claim 10
Dependent Claim
107 words
An aqueous pigment ink composition for ball-point pens which comprises 0.5 to 40% by weight of an adduct of trimethylolpropane with an alkylene oxide in which 1 to 60 mols of the alkylene oxide are added to trimethylolpropane, 2 to 30% by weight of pigment, 0.1 to 10% by weight of dispersant, and 40 to 90% by weight of water with respect to the total weight of the composition, wherein the dispersant is at least one dispersant selected from the group consisting of water-soluble polymers, polyoxyalkylene higher fatty esters, higher fatty acid partial esters of polyhydric alcohols, alkylated sulfonates of higher fatty acid amides and alkyallyl sulfonates.
Claim 11
Dependent Claim
107 words
An aqueous pigment ink composition for ball-point pens which comprises 0.5 to 40% by weight of an adduct of trimethylolpropane with an alkylene oxide in which 1 to 60 mols of the alkylene oxide are added to trimethylolpropane, 2 to 30% by weight of pigment, 0.1 to 10% by weight of dispersant, and 40 to 90% by weight of water with respect to the total weight of the composition, wherein the dispersant is at least one dispersant selected from the group consisting of water-soluble polymers, polyoxyalkylene higher fatty esters, higher fatty acid partial esters of polyhydric alcohols, alkylated sulfonates of higher fatty acid amides and alkyallyl sulfonates.
Claim 12
Dependent Claim
19 words
The aqueous pigment ink composition for ball-point pens according to claim 7 wherein the dispersant comprises a water-soluble polymer.
References Cited (Backward Citations)
JPS55106273A
Cited
JPS5710547A
Cited
US4431450A
Cited
US4545818A
Cited
US4986850A
Cited
JPS63234073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-01-24 | 1997-07-26 | 1998-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-24 | 2001-07-26 | 2002-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-24 | 2005-07-26 | 2006-01-25 | $7700.00 | Window Closed / Lapsed |