US4710230A
Expired / Lapsed
US
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Pigment paste
Assignee: DIC Corp
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Filing: 1986-04-21
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Granted: 1987-12-01
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Expires: 2006-04-21
Abstract
Abstract A pigment paste comprising a pigment and as a pigment dispersing agent, a compound having a basic structure represented by the following formula <IMAGE> wherein R1 represents a hydrogen atom or a C1-C4 alkyl group, and R2 represents a residue of a diol or polyol, or a mixture of said pigment dispersing agent and an organic solvent, said pigment being dispersed in said pigment dispersing agent or in said mixture.
Inventors
- 👤 Noboru Okoshi
- 👤 Masatoshi Motomura
- 👤 Mitsuru Ohtsubo
- 👤 Takenori Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:47
CPC Classifications
C; C09; C09D; C09D17/00; C09B; C09B67/00; C09B67/006; C09B67/0065; C09B67/0069; C09B67/0071; C09B67/0084; C09B67/0085
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
A pigment paste comprising a pigment and as a pigment dispersing agent, a compound having a basic structure represented by the following formula ##STR4## wherein R 1 represents a hydrogen atom or a C 1 -C 4 alkyl group, and R 2 represents a residue of a diol or polyol, or a mixture of said pigment dispersing agent and an organic solvent, said pigment being dispersed in said pigment dispersing agent or in said mixture in an amount such that the pigment weight concentration (PWC, weight %) as defined by ##EQU2## is 0.5 to 99.5% by weight.
Claim 2
Dependent Claim
97 words
A pigment paste comprising a pigment and as a pigment dispersing agent, a compound having a basic structure represented by the following formula ##STR4## wherein R 1 represents a hydrogen atom or a C 1 -C 4 alkyl group, and R 2 represents a residue of a diol or polyol, or a mixture of said pigment dispersing agent and an organic solvent, said pigment being dispersed in said pigment dispersing agent or in said mixture in an amount such that the pigment weight concentration (PWC, weight %) as defined by ##EQU2## is 0.5 to 99.5% by weight.
Claim 3
Dependent Claim
34 words
The pigment paste of claim 1 wherein the pigment dispersing agent is a derivative of a triazine-type amino compound, said derivative having a number average molecular weight in the range of 550 to 3,000.
Claim 4
Dependent Claim
29 words
The pigment paste of claim 1 wherein the pigment dispersing agent is a derivative of a triazine-type amino compound, said derivative having a hydroxyl value of 20 to 400.
Claim 5
Dependent Claim
34 words
The pigment paste of claim 1 wherein the pigment dispersing agent is a derivative of a triazine-type compound, which is obtained by co-condensing the triazine-type amino compound, formaldehyde, a diol and a monohydric alcohol.
Claim 6
Dependent Claim
25 words
The pigment paste of claim 4 wherein said triazine-type amino compound is selected from the group consisting of melamine, benzoguanamine, acetoguanamine, formoguanamine, propioguanamine and isopropylguanamine.
Claim 7
Dependent Claim
13 words
The pigment paste of claim 5 wherein said triazone-type amino compound is melamine.
Claim 8
Dependent Claim
12 words
The pigment paste of claim 4 wherein an additional aldehyde is added.
Claim 9
Dependent Claim
24 words
The pigment paste of claim 7 wherein said additional aldehyde is selected from the group consisting of acetaldehyde, propionaldehyde, glyoxal, succinic aldehyde and chloral.
Claim 10
Dependent Claim
66 words
The pigment paste of claim 1 wherein the pigment is at least one pigment selected from the group consisting of azoic pigments, condensed azoic pigments, phthalocyanine pigments, quinacridone pigments, isoindolinone pigments, perylene pigments, perinone pigments, dioxazine pigments, vat dyed pigments, basic dyed pigments, carbon black, titanium oxide, chrome yellow, cadmium yellow, cadmium red, iron oxide red, black iron oxide, zinc white, prussian blue and ultra-marine blue.
Claim 11
Dependent Claim
15 words
The pigment paste of claim 1 wherein the pigment is a combination of different pigments.
References Cited (Backward Citations)
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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) | 1990-11-30 | 1991-06-01 | 1991-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-30 | 1995-06-01 | 1995-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-30 | 1999-06-01 | 1999-12-01 | $7700.00 | Window Closed / Lapsed |