US5476544A
Expired / Lapsed
US
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Water-based pigment dispersion
Assignee: Artience Co Ltd
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Filing: 1995-01-06
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Granted: 1995-12-19
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Expires: 2015-01-06
Abstract
Abstract A water-based pigment dispersion excellent in gloss of a coating, tinting strength, fluidity and storage stability, comprising a pigment, a pigment dispersing agent of the formula (1) and a solid content, of a water-based resin which is obtained by copolymerizing an alpha , beta -ethylenically unsaturated carboxylic acid (a), an alpha , beta -ethylenically unsaturated, nitrogen-containing monomer (b) and other alpha , beta -ethylenically unsaturated monomer (c), P-[X-Y-Z-N(R1)R2]n(1) wherein: P is an organic dyestuff residue or a heterocyclic ring residue, X is a divalent binding group consisting of 2 to 15 atoms selected from S, C, N, O and H atoms, Y is a direct bond, -N(R)- in which R is H, an alkyl group having 1 to 18 carbon atoms or Q-N(R3)R4 in which Q is an alkylene group having 1 to 6 carbon atoms and each of R3 and R4 is independently an optionally substituted alkyl group having 1 to 18 carbon atoms or R3 and R4 are together forming an optionally substituted heterocyclic ring which may contain N, O or S, or -O-, Z is an alkylene group having 1 to 6 carbon atoms, and each of R1 and R2 is independently an optionally substituted alkyl group having 1 to 18 carbon atoms or R1 and R2 are together forming an optionally substituted heterocyclic ring which may contain N, O or S, and n is an integer of 1 to 3.
Inventors
- 👤 Atsushi Endo
- 👤 Akimitsu Mochizuki
- 👤 Michichika Hikosaka
- 👤 Tsutomu Fujigamori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:00
CPC Classifications
C; C09; C09D; C09D17/00; C09D17/001
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
284 words
A water-based pigment dispersion comprising 100 parts by weight of a pigment, 0.1 to 30 parts by weight of a pigment dispersing agent of the formula (1) and 5 to 500 parts by weight, as a solid content, of a water-based resin which is obtained by copolymerizing 5 to 20% by weight of an α, β-ethylenically unsaturated carboxylic acid (a), 5 to 50% by weight of an α, β-ethylenically unsaturated, nitrogen-containing monomer (b) and 30 to 90% by weight of an α, β-ethylenically unsaturated monomer (c) other than the α, β-ethylenically unsaturated carboxylic acid (a) and the α, β-ethylenically unsaturated, nitrogen-containing monomer (b), P--[X--Y--Z--N(R.sup.1)R.sup.2 ].sub.n ( 1) wherein: P is an organic dyestuff residue or a heterocyclic ring residue, X is a divalent binding group consisting of 2 to 15 atoms selected from S, C, N, O and H atoms, Y is a direct bond, --N(R)-- in which R is H, an alkyl group having 1 to 18 carbon atoms or Q--N(R 3 )R 4 in which Q is an alkylene group having 1 to 6 carbon atoms and each of R 3 and R 4 is independently an optionally substituted alkyl group having 1 to 18 carbon atoms or R 3 and R 4 are together forming an optionally substituted heterocyclic ring which may contain N, O or S, or --O--, Z is an alkylene group having 1 to 6 carbon atoms, and each of R 1 and R 2 is independently an optionally substituted alkyl group having 1 to 18 carbon atoms or R 1 and R 2 are together forming an optionally substituted heterocyclic ring which may contain N, O or S, and n is an integer of 1 to 3.
Claim 2
Dependent Claim
284 words
A water-based pigment dispersion comprising 100 parts by weight of a pigment, 0.1 to 30 parts by weight of a pigment dispersing agent of the formula (1) and 5 to 500 parts by weight, as a solid content, of a water-based resin which is obtained by copolymerizing 5 to 20% by weight of an α, β-ethylenically unsaturated carboxylic acid (a), 5 to 50% by weight of an α, β-ethylenically unsaturated, nitrogen-containing monomer (b) and 30 to 90% by weight of an α, β-ethylenically unsaturated monomer (c) other than the α, β-ethylenically unsaturated carboxylic acid (a) and the α, β-ethylenically unsaturated, nitrogen-containing monomer (b), P--[X--Y--Z--N(R.sup.1)R.sup.2 ].sub.n ( 1) wherein: P is an organic dyestuff residue or a heterocyclic ring residue, X is a divalent binding group consisting of 2 to 15 atoms selected from S, C, N, O and H atoms, Y is a direct bond, --N(R)-- in which R is H, an alkyl group having 1 to 18 carbon atoms or Q--N(R 3 )R 4 in which Q is an alkylene group having 1 to 6 carbon atoms and each of R 3 and R 4 is independently an optionally substituted alkyl group having 1 to 18 carbon atoms or R 3 and R 4 are together forming an optionally substituted heterocyclic ring which may contain N, O or S, or --O--, Z is an alkylene group having 1 to 6 carbon atoms, and each of R 1 and R 2 is independently an optionally substituted alkyl group having 1 to 18 carbon atoms or R 1 and R 2 are together forming an optionally substituted heterocyclic ring which may contain N, O or S, and n is an integer of 1 to 3.
Claim 3
Dependent Claim
44 words
A water-based pigment dispersion according to claim 1, wherein the α, β-ethylenically unsaturated, nitrogen-containing monomer (b) is at least one member selected from the group consisting of aminoalkyl (meth)acrylates and monoalkyl- or dialkyl-substituted compounds thereof, aminoalkyl(meth)acrylamides and monoalkyl- or dialkyl-substituted compounds thereof, and (meth)acrylamides.
Claim 4
Dependent Claim
34 words
A water-based pigment dispersion according to claim 1, wherein the α, β-ethylenically unsaturated monomer (c) is at least one member selected from the group consisting of alkyl (meth)acrylates, hydroxyalkyl (meth)acrylates and vinyl aromatic compounds.
Claim 5
Dependent Claim
35 words
A water-based pigment dispersion according to claim 1, wherein the water-based resin is an acrylic copolymer resin which is soluble in an aqueous medium containing 50% by weight or less of a water-miscible organic solvent.
Claim 6
Dependent Claim
31 words
A water-based pigment dispersion according to claim 4, wherein the acrylic copolymer resin has an acid value of 1 to 200 and a weight average molecular weight of 5,000 to 300,000.
Claim 7
Dependent Claim
30 words
A water-based pigment dispersion according to claim 1, wherein the pigment is a phthalocyanine pigment and P in the formula (1) for the pigment dispersing agent is a phthalocyanine residue.
Claim 8
Dependent Claim
30 words
A water-based pigment dispersion according to claim 1, wherein the pigment is a quinacridone pigment and P in the formula (1) for the pigment dispersing agent is a quinacridone residue.
Claim 9
Dependent Claim
34 words
A water-based pigment dispersion according to claim 1, wherein X is a divalent binding group selected from the class consisting of --SO 2 --, --CO--, --CH 2 -- and --CH 2 NHCOCH 2 --.
Claim 10
Dependent Claim
28 words
A water-based pigment dispersion according to claim 1, wherein the water-based resin is contained in an amount of 5 to 200 parts by weight as a solid content.
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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) | 1998-12-18 | 1999-06-19 | 1999-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-18 | 2003-06-19 | 2003-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-18 | 2007-06-19 | 2007-12-19 | $7700.00 | Window Closed / Lapsed |