US3776749A
Expired / Lapsed
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Diarylide pigment compositions
Assignee: Novartis AG
•
Filing: 1971-05-06
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Granted: 1973-12-04
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Expires: 1991-05-06
Abstract
Abstract A process in which a diarylide pigment composition is produced by coupling a tetrazotised pigment benzidine with a pigment coupling agent, preferably an acetoacetarylamide, and incorporating in the pigment a water-soluble coupled diarylide dyestuff, preferably prior to the isolation and drying of the pigment, and the diarylide pigment composition having better colour strength and transparency properties than conventional diarylide pigments when incorporated in printing inks.
Inventors
- 👤 Kay R Mc
- 👤 G Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:45
CPC Classifications
C; C09; C09B; C09B41/00; C09B35/00; C09B35/02; C09B35/039; C09B35/08; C09B35/10; C09B67/00; C09B67/0033
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
28 words
A diarylide pigment composition according to claim 1 comprising (a) a coupled diarylide pigment and (b) a water-soluble metal salt of a sulphonated or carboxylated water-soluble azo dyestuff.
Claim 2
Dependent Claim
49 words
A diarylide pigment composition according to claim 1 comprising (a) a coupled diarylide pigment consisting of a pigment diarylide azo component coupled with an acetoacetarylide, pyrazolone or naphthol pigment coupling component and (b) a water-soluble azo dyestuff consisting of a dyestuff azo component coupled with a dyestuff coupling component.
Claim 3
Dependent Claim
34 words
A diarylide pigment composition according to claim 3 wherein the component (b) is a water-soluble azo dyestuff consisting of a diarylide dyestuff azo component coupled with an acetoacetanilide, pyrazolone or naphthol dyestuff coupling component.
Claim 4
Dependent Claim
19 words
A diarylide pigment composition according to claim 1 wherein the component (a) is a diarylide pigment having the formula
Claim 5
Dependent Claim
18 words
A diarylide pigment composition according to claim 1 wherein component a is a diarylide pigment having the formula
Claim 6
Dependent Claim
18 words
A diarylide pigment composition according to claim 1 wherein component a is a diarylide pigment having the formula
Claim 7
Dependent Claim
17 words
A diarylide pigment composition according to claim 1 wherein component b is a dyestuff having the formula
Claim 8
Dependent Claim
17 words
A diarylide pigment composition according to claim 1 wherein component b is a dyestuff having the formula
Claim 9
Dependent Claim
17 words
A diarylide pigment composition according to claim 1 wherein component b is a dyestuff having the formula
Claim 10
Dependent Claim
17 words
A diarylide pigment composition according to claim 1 wherein component b is a dyestuff having the formula
Claim 11
Dependent Claim
18 words
A diarylide pigment composition according to claim 1 wherein the compoNent b is a dyestuff having the formula
Claim 12
Dependent Claim
17 words
A diarylide pigment composition according to claim 1 wherein component b is a dyestuff having the formula
Claim 13
Dependent Claim
17 words
A diarylide pigment composition according to claim 1 wherein component b is a dyestuff having the formula
Claim 14
Dependent Claim
17 words
A diarylide pigment composition according to claim 1 wherein component b is a dyestuff having the formula
Claim 15
Dependent Claim
70 words
A diarylide pigment composition according to claim 1 wherein component b is a dyestuff having the formula M (N N P)n wherein M is an optionally substituted aromatic residue, P is a coupling component and n is 1 or 2 provided that if n is 2 then the two residues need not be identical, and wherein both M and P or either M or P may contain water solubilizing groups.
Claim 16
Dependent Claim
24 words
A pigment composition according to claim 1 in which the proportion of the dyestuff component b is from 1 to 25 percent by weight.
Claim 17
Dependent Claim
24 words
A pigment composition according to claim 17 in which the proportion of the dyestuff component b is from 1 to 10 percent by weight.
Claim 18
Dependent Claim
17 words
A pigment composition according to claim 1 in which the composition contains a resin or resinous material.
Claim 19
Dependent Claim
19 words
A pigment composition according to claim 19 in which the resin is wood rosin or a hydrogenated wood rosin.
Claim 20
Dependent Claim
14 words
A composition according to claim 1 in which the composition contains a surface-active agent.
Claim 21
Dependent Claim
25 words
A pigment composition according to claim 21 in which the surface-active agent is a naphthalene disulphonic acid/formaldehyde condensate or a long chain alcohol/ethylene oxide condensate.
Claim 22
Dependent Claim
25 words
A process of producing a pigment composition as defined in claim 1 comprising incorporating the water-soluble azo dyestuff component b into the pigment component a.
Claim 23
Dependent Claim
45 words
A process of producing a pigment composition according to claim 23 comprising coupling one or more appropriate tetra-azotised pigment benzidine compounds and one or more appropriate pigment coupling agents to yield a pigment having one of the formulas (I), (II) and (III) as defined below:
Claim 24
Dependent Claim
27 words
A process according to claim 24 in which one or more diarylide water-soluble dyestuffs having one of the formulae IA and IVA are incorporated into the pigment.
Claim 25
Dependent Claim
70 words
A process according to claim 24 in which up to 25% by weight of one or more tetrazotized sulphonated or carboxylated dyestuff benzidine compounds is added to the tetrazotized pigment benzidine compound and subsequently this mixture is coupled with a pigment coupling agent which is used in an amount which is equal to or in slight excess of the stoichiometric proportion required to produce the diarylide pigment and the dyestuff.
Claim 26
Dependent Claim
70 words
A process according to claim 24 in which up to 25 percent by weight of one or more tetrazotized sulphonated or carboxylated dyestuff benzidine compounds is added to pigment coupling agent which is used in an amount which is in excess of the stoichiometric proportion required to produce the diarylide pigment and subsequently, this mixture containing the appropriate excess of coupling component is coupled with the tetrazotized pigment benzidine compound.
Claim 27
Dependent Claim
37 words
A process according to claim 24 in which up to 25 percent by weight of one or more tetrazotized sulphonated or carboxylated dyestuff benzidine compounds is added to the pigment coupling reaction mixture during the coupling reaction.
Claim 28
Dependent Claim
47 words
A process according to claim 24 in which up to 25 percent by weight of one or more tetrazotized sulphonated or carboxylated dyestuff benzidine compounds is added to pigment coupling reaction mixture after coupling, said pigment coupling reaction mixture containing an appropriate excess of pigment coupling component.
Claim 29
Dependent Claim
60 words
A process according to claim 24 in which up to 25 percent by weight of one or more dyestuff coupling components is added to the pigment coupling component and subsequently this mixture is coupled with a tetrazotized pigment benzidine compound which is used in an amount which is in excess of the stoichiometric proportion required to produce the diarylide pigment.
Claim 30
Dependent Claim
71 words
A process according to claim 24 in which up to 25 percent by weight of one or more dyestuff copuling components is coupled with the appropriate proportion of tetrazotized pigment benzidine compound, which is used in an amount which is in excess of the stoichiometric proportion required to produce the diarylide pigment, and, subsequently, coupling this mixture and the pigment coupling component with the remainder of the tetrazotized pigment benzidine compound.
Claim 31
Dependent Claim
32 words
A process according to claim 24 in which one or more of the water-soluble dyestuffs are added to the tetrazotized pigment benzidine compounds or to the pigment coupling agent before pigment copuling.
Claim 32
Dependent Claim
30 words
A process according to claim 24 in which one or more water-soluble dyestuffs are added to the pigment coupling reaction mixture during the coupling reaction or after the coupling reaction.
Claim 33
Dependent Claim
23 words
A process according to claim 24 in which one or more water-soluble dyestuffs are added to one or more previously prepared diarylamide pigments.
Claim 34
Dependent Claim
32 words
A process according to claim 24 in which the coupling of the tetrazotized pigment benzidine compound and the pigment coupling component is effected in a solution of one or more water-soluble dyestuffs.
Claim 35
Dependent Claim
32 words
A process according to claim 24 in which the coupling of the tetrazotized pigment benzidine compound and the pigment coupling component is effected in a solution of one or more water-soluble dyestuffs.
Claim 36
Dependent Claim
27 words
A process according to claim 24 in which the water-soluble dyestuff, after incorporation into the pigment, is rendered insoluble at a later stage in the pigment preparation.
Claim 37
Dependent Claim
39 words
A process according to claim 37 in which the dyestuff is rendered insoluble by the formation of an insoluble salt of a metal of one of Groups IA, IB, IIA, IIB, IIIA, IIIB, and VIII of the Periodic Table.
Claim 38
Dependent Claim
33 words
A process according to claim 38 in which a double decomposition reaction is effected between the sodium salt of the dyestuff and a water-soluble salt of the metal at an alkaline pH value.
Claim 39
Dependent Claim
25 words
A process according to claim 38 in which the metal salt is selected from zinc sulphate, magnesium sulphate, barium chloride, aluminum sulphate and calcium chloride.
Claim 40
Dependent Claim
19 words
A process according to claim 24 in which a resin or resinous material is incorporated into the pigment composition.
Claim 41
Dependent Claim
17 words
A process according to claim 24 in which a surface-active agent is incorporated into the pigment composition.
Claim 42
Dependent Claim
11 words
A printing ink containing a pigment composition according to claim 1.
Claim 43
Dependent Claim
16 words
A printing ink according to claim 43 in which the printing ink is a letterpress varnish.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |