US6723783B2
Expired / Lapsed
US
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Polymers and other groups attached to pigments and subsequent reactions
Assignee: Cabot Corp
•
Filing: 2001-01-05
•
Granted: 2004-04-20
•
Expires: 2021-01-05
Abstract
Abstract Methods of making a modified pigment by reacting a first chemical group and a second chemical group to form a pigment having attached a third chemical group. The first chemical group includes at least one nucleophile and the second chemical group includes at least one electrophile, or vice versa. Resulting modified pigments, and ink compositions containing such pigments, are also described.
Inventors
- 👤 Paul S. Palumbo
- 👤 Curtis E. Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:28
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/324; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C3/00; C09C3/08; C09C3/10; C09D11/322; C01; C01P; C01P2004/00; C01P2004/50; C01P2004/51; C01P2004/60; C01P2006/00; C01P2006/12; C01P2006/60
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
102 words
A modified pigment comprising a pigment having attached at least one organic group, wherein said organic group comprises: the reaction product of at least one electrophile and a nucleophilic polymer which is then further reacted with an acylating agent, wherein the organic group is attached by reacting a diazonium salt having the electrophile with at least one type of pigment and wherein the electrophile is selected from the group consisting of: acyl azides, isocyanates, ketones, aldehydes, anhydrides, amides, imides, imines, α,β-unsaturated ketones and aldehydes, alkyl halides, epoxides, alkyl sulfonates and sulfates, aromatic compounds which undergo addition-elimination reactions, and salts and derivatives thereof.
Claim 2
Dependent Claim
102 words
A modified pigment comprising a pigment having attached at least one organic group, wherein said organic group comprises: the reaction product of at least one electrophile and a nucleophilic polymer which is then further reacted with an acylating agent, wherein the organic group is attached by reacting a diazonium salt having the electrophile with at least one type of pigment and wherein the electrophile is selected from the group consisting of: acyl azides, isocyanates, ketones, aldehydes, anhydrides, amides, imides, imines, α,β-unsaturated ketones and aldehydes, alkyl halides, epoxides, alkyl sulfonates and sulfates, aromatic compounds which undergo addition-elimination reactions, and salts and derivatives thereof.
Claim 3
Dependent Claim
177 words
A method of making the modified pigment of claim 1 comprising reacting a pigment having attached a first chemical group with a second chemical group and then further reacting with an acylating agent to form said modified pigment having attached at least one organic group, wherein the second chemical group reacts with the first chemical group and is then further reacted with an acylating agent to form the organic group, and said first chemical group comprises at least one electrophile and said second chemical group comprises at least one nucleophilic polymer, wherein said pigment having attached a first chemical group is prepared by reacting a diazonium salt having the first chemical group with at least one type of pigment to form said pigment having attached a first chemical group, and wherein the first chemical group comprises at least one electrophile selected from the group consisting of: acyl azides, isocyanates, ketones, aldehydes, anhydrides, amides, imides, imines, α,β-unsaturated ketones and aldehydes, alkyl halides, epoxides, alkyl sulfonates and sulfates, aromatic compounds which undergo addition-elimination reactions, and salts and derivatives thereof.
Claim 4
Dependent Claim
15 words
The method of claim 2 , wherein the first chemical group comprises an alkylsulfate group.
Claim 5
Dependent Claim
15 words
The method of claim 2 , wherein the first chemical group comprises a (2-sulfatoethyl)-sulphone group.
Claim 6
Dependent Claim
13 words
The method of claim 4 , wherein the first chemical group is phenyl-(2-sulfatoethyl)-sulphone.
Claim 7
Dependent Claim
31 words
The method of claim 2 , wherein the nucleophilic polymer is selected from the group consisting of: a polyamine, a polyalkylene oxide, a polyol, a polyacrylate, and salts and derivatives thereof.
Claim 8
Dependent Claim
13 words
The method of claim 6 , wherein the nucleophilic polymer is a polyamine.
Claim 9
Dependent Claim
12 words
The method of claim 7 , wherein the nucleophilic polymer is polyethyleneimine.
Claim 10
Dependent Claim
12 words
The method of claim 2 , wherein said pigment is carbon black.
Claim 11
Dependent Claim
34 words
The method of claim 2 , wherein said pigment comprises a blue pigment, black pigment, brown pigment, cyan pigment, green pigment, white pigment, violet pigment, magenta pigment, red pigment, yellow pigment, or mixtures thereof.
Claim 12
Dependent Claim
47 words
The method of claim 2 , further comprising reacting said organic group attached onto said pigment with at least one additional second chemical group, wherein the additional second chemical group comprises at least one electrophile and the organic group comprises at least one nucleophile, or vice versa.
Claim 13
Dependent Claim
25 words
The method of claim 11 , wherein the additional second chemical group comprises a carboxylic acid group, an acid chloride group, or an anhydride group.
Claim 14
Dependent Claim
15 words
The method of claim 11 , wherein the additional second chemical group comprises a polymer.
Claim 15
Dependent Claim
35 words
The method of claim 13 , wherein the polymer is selected from the group consisting of: a polyamine, a polyol, a polyalkylene glycol, a polyacrylate, a protein, a polyamino acid, and salts and derivatives thereof.
Claim 16
Dependent Claim
14 words
The method of claim 13 , wherein the polymer is a polyacrylate or methacrylate.
Claim 17
Dependent Claim
36 words
The modified pigment of claim 1 , wherein said organic group comprises: the reaction product of at least one (2-sulfatoethyl)-sulphone group and at least one nucleophilic polymer which is then further reacted with an acylating agent.
Claim 18
Dependent Claim
17 words
The modified pigment of claim 16 , wherein the organic group is directly attached to the pigment.
Claim 19
Dependent Claim
13 words
The modified pigment of claim 16 , wherein the (2-sulfatoethyl)-sulphone group is phenyl-(2-sulfatoethyl)-sulphone.
Claim 20
Dependent Claim
21 words
The modified pigment of claim 16 , wherein said nucleophilic polymer is a poly(vinyl alcohol), polyalkylene glycol, polyamine, or combinations thereof.
Claim 21
Dependent Claim
18 words
The modified pigment of claim 16 , wherein the nucleophilic polymer is polyethyleneimine or derivatives or salts thereof.
Claim 22
Dependent Claim
23 words
The modified pigment of claim 1 , wherein the nucleophilic polymer is a poly(vinyl alcohol), a polyalkylene oxide, a polyamine, or combinations thereof.
Claim 23
Dependent Claim
18 words
The modified pigment of claim 1 , wherein the nucleophilic polymer is polyethyleneimine or derivatives or salts thereof.
Claim 24
Dependent Claim
17 words
The modified pigment of claim 1 , wherein the acylating agent is succinic anhydride or polyacrylic acid.
Claim 25
Dependent Claim
114 words
An ink composition comprising a liquid vehicle and a modified pigment, wherein the modified pigment comprises a pigment having attached at least one organic group, wherein said organic group comprises: the reaction product of at least one electrophile and a nucleophilic polymer which is then further reacted with an acylating agent, wherein the organic group is attached by reacting a diazonium salt having the electrophile with at least one type of pigment and wherein the electrophile is selected from the group consisting of: acyl azides, isocyanates, ketones, aldehydes, anhydrides, amides, imides, imines, α,β-unsaturated ketones and aldehydes, alkyl halides, epoxides, alkyl sulfonates and sulfates, aromatic compounds which undergo addition-elimination reactions, and salts and derivatives thereof.
Claim 26
Dependent Claim
114 words
An ink composition comprising a liquid vehicle and a modified pigment, wherein the modified pigment comprises a pigment having attached at least one organic group, wherein said organic group comprises: the reaction product of at least one electrophile and a nucleophilic polymer which is then further reacted with an acylating agent, wherein the organic group is attached by reacting a diazonium salt having the electrophile with at least one type of pigment and wherein the electrophile is selected from the group consisting of: acyl azides, isocyanates, ketones, aldehydes, anhydrides, amides, imides, imines, α,β-unsaturated ketones and aldehydes, alkyl halides, epoxides, alkyl sulfonates and sulfates, aromatic compounds which undergo addition-elimination reactions, and salts and derivatives thereof.
Claim 27
Dependent Claim
50 words
The ink composition of claim 24 , wherein the modified pigment comprises a pigment having attached at least one organic group, wherein said organic group comprises: the reaction product of at least one (2-sulfatoethyl)-sulphone group and at least one nucleophilic polymer which is then further reacted with an acylating agent.
Claim 28
Dependent Claim
16 words
The ink composition of claim 25 , wherein the ink composition is an inkjet ink composition.
Claim 29
Dependent Claim
16 words
The ink composition of claim 24 , wherein the ink composition is an inkjet ink composition.
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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) | 2007-04-20 | 2007-10-20 | 2008-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-04-20 | 2011-10-20 | 2012-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-04-20 | 2015-10-20 | 2016-04-20 | $7700.00 | Window Closed / Lapsed |