US6478863B2
Expired / Lapsed
US
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Modified pigments having improved dispersing properties
Assignee: Cabot Corp
•
Filing: 2000-12-29
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Granted: 2002-11-12
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Expires: 2020-12-29
Abstract
Abstract Various modified pigment products are described which are preferably capable of being dispersed in a variety of materials such as coatings, inks, toners, films, plastics, polymers, elastomers, and the like. The modified pigments are pigments having attached groups, such as polymeric groups, onto the pigment by means other than adsorption. A modified pigment product is described comprising a pigment having attached at least one group comprising the formula: —X—[NIon] p ,R wherein X comprises an aromatic group or an alkyl group, NIon comprises at least one type of non-ionic group, R represents hydrogen or comprises an aromatic group or an alkyl group, and p represents an integer of from 1 to 500. Modified pigment products are also described comprising a pigment having attached at least one alkylene oxide group or at least one polymeric group. In addition, other types of modified pigment products are described as well as their incorporation into inks, coatings, toners, films, plastics, polymers, elastomers, and the like. Methods of making the modified pigment products are also described.
Inventors
- 👤 Joseph E. Johnson
- 👤 Nanying Bian
- 👤 Collin P. Galloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:51
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/20; G03F7/2002; G03F7/2014; G03F7/2016; G03F7/202; B; B41; B41C; B41C1/00; B41C1/10; B41C1/1008; B41C1/1033; C; C09; C09B; C09B67/00; C09B67/0001; C09B67/0004; C09B67/0008; C09B67/0013; C09B67/0033; C09B67/0071; C09B67/0084; C09B67/0085; C09B67/0089; C09B67/009; C09B68/00; C09B68/20; C09B68/24; C09B68/26; C09B68/40; C09B68/42; C09B68/425; C09B68/4257; C09B68/44; C09B68/443; C09B68/446; C09B68/447; C09B68/4475; C09B69/00; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C09C1/52; C09C1/56; C09C3/00; C09C3/08; C09C3/10; C09D; C09D11/00; C09D11/02; C09D11/03; C09D11/037; C09D11/30; C09D11/32; C09D11/322; C09D11/34; C09D11/36; C09D5/00; C09D5/02; C09D5/024; C09D5/028; C01; C01P; C01P2002/00; C01P2002/60; C01P2004/00; C01P2004/60; C01P2004/62; C01P2004/80; C01P2006/00; C01P2006/12; C01P2006/21; C01P2006/60; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
92 words
A modified pigment product comprising a pigment having attached at least one aromatic group X, wherein X is substituted with at least one group comprising the formula: -[ NIon ] p R, wherein R represents hydrogen, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aromatic group, p is an integer from 1 to 500, and NIon represents at least one non-ionic group selected from the group consisting of: polymers of ethylene oxide, propylene oxide, alkylene oxides, carboxylic acid esters, glycols, alcohols, alkanolamine-fatty acid condensates, silicones, isocyanates, alkylpyrrolidenes, and alkylpolyglycosides.
Claim 2
Dependent Claim
92 words
A modified pigment product comprising a pigment having attached at least one aromatic group X, wherein X is substituted with at least one group comprising the formula: -[ NIon ] p R, wherein R represents hydrogen, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aromatic group, p is an integer from 1 to 500, and NIon represents at least one non-ionic group selected from the group consisting of: polymers of ethylene oxide, propylene oxide, alkylene oxides, carboxylic acid esters, glycols, alcohols, alkanolamine-fatty acid condensates, silicones, isocyanates, alkylpyrrolidenes, and alkylpolyglycosides.
Claim 3
Dependent Claim
15 words
The modified pigment product of claim 1 , wherein NIon further comprises an ionic group.
Claim 4
Dependent Claim
26 words
The modified pigment product of claim 2 , wherein the ionic group is a carboxylate group, a sulfonate group, a phosphate group, or an amine group.
Claim 5
Dependent Claim
19 words
The modified pigment product of claim 1 , wherein NIon is a C 1 -C 12 alkylene oxide group.
Claim 6
Dependent Claim
15 words
The modified pigment product of claim 1 , wherein NIon further comprises a functional group.
Claim 7
Dependent Claim
14 words
The modified pigment product of claim 1 , wherein NIon is a glycol group.
Claim 8
Dependent Claim
22 words
The modified pigment product of claim 1 , wherein X is a phenyl, naphthyl, anthracenyl, phenanthrenyl, biphenyl, pyridinyl, benzothiadiazolyl, or benzothiazolyl group.
Claim 9
Dependent Claim
19 words
The modified pigment product of claim 1 , wherein X is further substituted with at least one functional group.
Claim 10
Dependent Claim
20 words
The modified pigment product of claim 8 , wherein said functional group is a carboxylic group or a sulfonate group.
Claim 11
Dependent Claim
14 words
The modified pigment product of claim 1 , wherein p is 1 to 50.
Claim 12
Dependent Claim
18 words
The modified pigment product of claim 1 , further comprising a second chemical group attached to said pigment.
Claim 13
Dependent Claim
106 words
An ink composition comprising a) at least one liquid vehicle; and b) at least one modified pigment product comprising a pigment having attached at least one aromatic group X, wherein X is substituted with at least one group comprising the formula: -[ NIon] p R, wherein R represents hydrogen, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aromatic group, p is an integer of from 1 to 500, and NIon represents at least one non-ionic group selected from the group consisting of: polymers of ethylene oxide, propylene oxide, alkylene oxides, carboxylic acid esters, glycols, alcohols, alkanolamine-fatty acid condensates, silicones, isocyanates, alkylpyrrolidenes, and alkylpolyglycosides.
Claim 14
Dependent Claim
106 words
An ink composition comprising a) at least one liquid vehicle; and b) at least one modified pigment product comprising a pigment having attached at least one aromatic group X, wherein X is substituted with at least one group comprising the formula: -[ NIon] p R, wherein R represents hydrogen, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aromatic group, p is an integer of from 1 to 500, and NIon represents at least one non-ionic group selected from the group consisting of: polymers of ethylene oxide, propylene oxide, alkylene oxides, carboxylic acid esters, glycols, alcohols, alkanolamine-fatty acid condensates, silicones, isocyanates, alkylpyrrolidenes, and alkylpolyglycosides.
Claim 15
Dependent Claim
16 words
The ink composition of claim 12 , wherein said ink composition is an inkjet ink composition.
Claim 16
Dependent Claim
17 words
The ink composition of claim 12 , further comprising a second chemical group attached to said pigment.
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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) | 2005-11-11 | 2006-05-13 | 2006-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-11-11 | 2010-05-13 | 2010-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-11-11 | 2014-05-13 | 2014-11-12 | $7700.00 | Window Closed / Lapsed |