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US4762569A
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Easily dispersible pigment composition and dispersing method
Assignee: Sanyo Color Works Ltd
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Filing: 1987-08-07
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Granted: 1988-08-09
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Expires: 2007-08-07
Abstract
Abstract The present invention relates to a easily dispersible pigment composition for non-aqueous vehicles, comprising 100 wt. parts of organic pigment or inorganic pigment and 0.5-15 wt. parts of tetracarboxylic acid diimid compound having the following formula [I], and a method for dispersing pigment in non-aqueous vehicle, comprising use of 0.5-15 wt. parts of the compound having the following formula [I] against 100 wt. parts of organic or inorganic pigment. ##STR1## In the formula [I], Q shows naphthaline radical or perylene radical having 4 carbonyl radicals at peri-positions and R 1 and R 2 show either the same or differently hydrogen atom or alkyl radical having 1-2 carbon atoms, and n is 2 or 3.
Inventors
- 👤 Toshiyuki Miki
- 👤 Mitsumasa Takeya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:04
CPC Classifications
C; C09; C09B; C09B57/00; C09B57/08; C09B67/00; C09B67/0033
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
81 words
An easily dispersible pigment composition for a non-aqueous vehicle, comprising 100 wt. parts of organic pigment and 0.5-15 wt. parts of tetracarboxylic acid diimide compound having the general formula [I] ##STR21## wherein Q is a naphthalene radical or perylene radical which is bonded to the 4 carbonyl radicals at peri-positions and R 1 and R 2 are each the same or different and are a hydrogen atom or an alkyl radical having 1-2 carbon atoms, and n is 2 or 3.
Claim 2
Dependent Claim
81 words
An easily dispersible pigment composition for a non-aqueous vehicle, comprising 100 wt. parts of organic pigment and 0.5-15 wt. parts of tetracarboxylic acid diimide compound having the general formula [I] ##STR21## wherein Q is a naphthalene radical or perylene radical which is bonded to the 4 carbonyl radicals at peri-positions and R 1 and R 2 are each the same or different and are a hydrogen atom or an alkyl radical having 1-2 carbon atoms, and n is 2 or 3.
Claim 3
Dependent Claim
18 words
The easily dispersible pigment composition as in claim 1, wherein the organic pigment is perylene perinone type pigment.
Claim 4
Dependent Claim
17 words
The easily dispersible pigment composition as in claim 1, wherein the organic pigment is quinacridone type pigment.
Claim 5
Dependent Claim
16 words
The easily dispersible pigment composition as in claim 1, wherein the inorganic pigment is carbon black.
Claim 6
Independent Claim
92 words
A method for dispersing pigment in a non-aqueous vehicle, comprising mixing a composition comprising 0.5-15 wt. parts of the compound having the following general formula [I] with 100 wt. parts of organic pigment or inorganic pigment ##STR22## wherein Q is a naphthalene radical or perylene radical which is bonded to the 4 carbonyl radicals at peri-positions and R 1 and R 2 are each the same or different and are a hydrogen atom or are an alkyl radical having 1-2 carbon atoms, and n is 2 or 3, in a non-aqueous vehicle.
Claim 7
Independent Claim
92 words
A method for dispersing pigment in a non-aqueous vehicle, comprising mixing a composition comprising 0.5-15 wt. parts of the compound having the following general formula [I] with 100 wt. parts of organic pigment or inorganic pigment ##STR22## wherein Q is a naphthalene radical or perylene radical which is bonded to the 4 carbonyl radicals at peri-positions and R 1 and R 2 are each the same or different and are a hydrogen atom or are an alkyl radical having 1-2 carbon atoms, and n is 2 or 3, in a non-aqueous vehicle.
Claim 8
Dependent Claim
21 words
The method for dispersing pigment in non-aqueous vehicle as in claim 5, wherein the organic pigment is perylene perinone type pigment.
Claim 9
Dependent Claim
20 words
The method for dispersing pigment in non-aqueous vehicle as in claim 5, wherein the organic pigment is quinacridone type pigment.
Claim 10
Dependent Claim
19 words
The method for dispersing pigment in non-aqueous vehicle as in claim 5, wherein the inorganic pigment is carbon black.
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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) | 1991-08-09 | 1992-02-08 | 1992-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-09 | 1996-02-08 | 1996-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-09 | 2000-02-08 | 2000-08-09 | $7700.00 | Window Closed / Lapsed |