US5334727A
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US
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Pyrazole-containing pigment derivatives
Assignee: BASF Corp
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Filing: 1993-01-11
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Granted: 1994-08-02
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Expires: 2013-01-11
Abstract
Abstract Pyrazole derivatives of a variety of polycyclic pigments, particularly quinacridone pigments, corresponding to the general formula ##STR1## wherein Q is the primary pigment structure; and the use of such derivatives as additives to pigment systems to provide a broad range of performance benefits to the resulting pigment compositions.
Inventors
- 👤 Colin D. Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:41
CPC Classifications
C; C09; C09B; C09B48/00; C09B67/00; C09B67/0033; C09B67/0034; C09B69/00; C09B69/02; C09B69/04
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
106 words
A pyrazole derivative corresponding to the formula ##STR3## wherein Q is a pigment moiety; R 1 , R 2 and R 3 are independently hydrogen; halogen; C 1 -C 18 alkyl, optionally substituted with one or more halogen or C 1 -C 6 alkoxy groups, C 6 -C 12 aryl, optionally substituted with C -C 18 alkyl, halogen, nitro, or C 1 -C 6 alkoxy groups, or R 1 and R 2 together with the carbons of the pyrazole ring form a benzene ring; M is hydrogen, a quaternary nitrogen cation or a metal cation; x is 0 to 2; and y is 0.05 to 4.
Claim 2
Dependent Claim
106 words
A pyrazole derivative corresponding to the formula ##STR3## wherein Q is a pigment moiety; R 1 , R 2 and R 3 are independently hydrogen; halogen; C 1 -C 18 alkyl, optionally substituted with one or more halogen or C 1 -C 6 alkoxy groups, C 6 -C 12 aryl, optionally substituted with C -C 18 alkyl, halogen, nitro, or C 1 -C 6 alkoxy groups, or R 1 and R 2 together with the carbons of the pyrazole ring form a benzene ring; M is hydrogen, a quaternary nitrogen cation or a metal cation; x is 0 to 2; and y is 0.05 to 4.
Claim 3
Dependent Claim
40 words
The derivative of claim 1, wherein Q is selected from the group consisting of unsubstituted and substituted quinacridones, 1,4-diketo-pyrrolopyrroles, phthalocyanines, indanthrones, isoindolines, isoindolinones, flavanthrones, pyranthrones, anthraquinones, thioindigos, perylenes and dioxazines and solid solutions containing at least two of these moieties.
Claim 4
Dependent Claim
36 words
The derivative of claim 2, wherein Q is selected from the group consisting of unsubstituted and substituted quinacridones, 1,4-diketopyrrolopyrroles, copper phthalocyanine and perylene tetracarboxylic di-imide moieties and solid solutions containing at least two of the moieties.
Claim 5
Dependent Claim
29 words
The derivative of claim 3, wherein Q is selected from the group consisting of unsubstituted and substituted quinacridones, 1,4-diketopyrrolopyrroles and solid solutions containing at least two of the moieties.
Claim 6
Dependent Claim
28 words
The derivative of claim 1, wherein R 1 , R 2 and R 3 are independently hydrogen, chlorine, methyl, ethyl, 2-chloroethyl, 2-methoxyethyl, benzyl, phenyl, naphthyl, p-chlorophenyl or p-methoxyphenyl.
Claim 7
Dependent Claim
18 words
The derivative of claim 5, wherein R 2 is hydrogen, and R 1 and R 3 are methyl.
Claim 8
Dependent Claim
16 words
The derivative of claim 1, wherein R 1 and R 2 are a fused benzene ring.
Claim 9
Dependent Claim
26 words
The derivative of claim 1, wherein M is hydrogen, ammonium, trimethylcetylammonium or tributylbenzylammonium radicals, or sodium, potassium, magnesium, calcium, strontium, barium, aluminum or zinc metal cations.
Claim 10
Dependent Claim
9 words
The derivative of claim 8, wherein M is hydrogen.
Claim 11
Dependent Claim
17 words
The derivative of claim 1, wherein x is 0 to 0.2 and y is 0.1 to 1.0.
Claim 12
Dependent Claim
18 words
A pigment composition comprising a pigment and from 0.1-20%, by weight, of the pyrazole derivative of claim 1.
Claim 13
Dependent Claim
12 words
The composition of claim 11, wherein said pigment is an organic pigment.
Claim 14
Dependent Claim
21 words
The composition of claim 12, wherein said pigment and the Q substituent of the pyrazole derivative are the same pigment moiety.
Claim 15
Dependent Claim
40 words
The composition of claim 12, wherein Q is selected from the group consisting of unsubstituted and substituted quinacridones, 1,4-diketo-pyrrolopyrroles, phthalocyanines, indanthrones, isoindolines, isoindolinones, flavanthrones, pyranthrones, anthraquinones, thioindigos, perylenes and dioxazines and solid solutions containing at least two of these moieties.
Claim 16
Dependent Claim
36 words
The composition of claim 14, wherein Q is selected from the group consisting of unsubstituted and substituted quinacridones, 1,4-diketopyrrolopyrroles, copper phthalocyanine and perylene tetracarboxylic di-imide moieties and solid solutions containing at least two of the moieties.
Claim 17
Dependent Claim
31 words
The composition of claim 15, wherein Q is selected from the group consisting of unsubstituted and substituted quinacridones, 1,4-diketopyrrolopyrroles and solid solutions containing at least two of two of these moieties.
Claim 18
Dependent Claim
28 words
The composition of claim 12, wherein R 1 , R 2 and R 3 are independently hydrogen, chlorine, methyl, ethyl, 2-chloroethyl, 2-methoxyethyl, benzyl, phenyl, naphthyl, p-chlorophenyl or p-methoxyphenyl.
Claim 19
Dependent Claim
18 words
The composition of claim 17, wherein R 2 is hydrogen, and R 1 and R 3 are methyl.
Claim 20
Dependent Claim
26 words
The composition of claim 12, wherein M is hydrogen, ammonium, trimethylcetylammonium or tributylbenzylammonium radicals, or sodium, potassium, magnesium, calcium, strontium, barium, aluminum or zinc metal cations.
Claim 21
Dependent Claim
9 words
The composition of claim 19, wherein M is hydrogen.
Claim 22
Dependent Claim
17 words
The composition of claim 12, wherein x is 0 to 0.2 and y is 0.1 to 1.0.
Claim 23
Dependent Claim
19 words
The composition of claim 11, which additionally contains from 0.05 to 20%, by weight, of a sulfonated polycyclic pigment.
Claim 24
Dependent Claim
42 words
The composition of claim 22, wherein said polycyclic pigment is selected from the group consisting of unsubstituted and substituted quinacridones, 1,4-diketo-pyrrolopyrroles, phthalocyanines, indanthrones, isoindolines, isoindolinones, flavanthrones, pyranthrones, anthraquinones, thioindigos, perylenes and dioxazines and solid solutions containing at least two of these moieties.
Claim 25
Dependent Claim
40 words
The composition of claim 23, wherein said polycyclic pigment is selected from the group consisting of unsubstituted and substituted quinacridones, 1,4-diketopyrrolopyrroles, copper phthalocyanine and perylene tetracarboxylic di-imide moieties and solid solutions containing at least two of two of these moieties.
Claim 26
Dependent Claim
21 words
The composition of claim 22, wherein said polycyclic pigment and the Q substituent of the pyrazole derivative are the same moiety.
Claim 27
Dependent Claim
24 words
A method of improving the rheological properties of a pigment dispersion, which comprises incorporating a pyrazole derivative of claim 1 into said pigment dispersion.
References Cited (Backward Citations)
US2761868A
Cited
US3386843A
Cited
US3362957A
Cited
US3275637A
Cited
US4017479A
Cited
US3647819A
Cited
US3752817A
Cited
US3925304A
Cited
US4018791A
Cited
US4029670A
Cited
US4171446A
Cited
DE2742034A1
Cited
US4400515A
Cited
US4451398A
Cited
US4310359A
Cited
US4837235A
Cited
EP0321919A2
Cited
US4986852A
Cited
EP0362690A2
Cited
JPH02162353A
Cited
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