US4110073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid and stable dispersions of anionic dyestuffs
Assignee: Novartis AG
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Filing: 1976-05-10
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Granted: 1978-08-29
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Expires: 1996-05-10
Abstract
Abstract The present invention concerns new fluid and stable dispersions of anionic dyestuffs, containing (a) dispersed anionic dyestuff with a maximum particle size of 5μ, (b) a dispersing agent which comprises (i) a combination of at least two different anion-active dispersing agents or (ii) a combination of an anion-active dispersing agent and at least one wetting agent or (iii) a combination of at least two different anion-active dispersing agents and at least one wetting agent, (c) optionally further auxiliaries and (d) water, As well as a process for their production and their application to dyeing and printing of organic material, in particular fibre material of natural and synthetic polyamide.
Inventors
- 👤 Hans Mollet
- 👤 Wolfgang Rehmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:54
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/32; C09B1/34; C09B45/00; C09B45/02; C09B45/14; C09B45/16; C09B67/00; C09B67/0071; C09B67/0072; C09B67/0073
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
91 words
A fluid and stable anionic dyestuff dispersion having a viscosity of 3 to 500 centipoise comprising as essential components (a) 10 to 50% by weight of at least one dispersed anionic dyestuff having a particle size below 5μ; (b) 5 to 80%, relative to the amount of dyestuff, as a dispersing agent a mixture selected from the group consisting of: (1) sodium lignin sulphonate and disodiumdinaphthylmethane-disulphonate, (2) sodium lignin sulphonate and decyloxyacetic acid monoethanolamide, and (3) disodiumdinaphthylmethanedisulphonate and sodiumdioctylsulphosuccinate; and (c) 20 to 80% by weight of the dispersion of water.
Claim 2
Dependent Claim
91 words
A fluid and stable anionic dyestuff dispersion having a viscosity of 3 to 500 centipoise comprising as essential components (a) 10 to 50% by weight of at least one dispersed anionic dyestuff having a particle size below 5μ; (b) 5 to 80%, relative to the amount of dyestuff, as a dispersing agent a mixture selected from the group consisting of: (1) sodium lignin sulphonate and disodiumdinaphthylmethane-disulphonate, (2) sodium lignin sulphonate and decyloxyacetic acid monoethanolamide, and (3) disodiumdinaphthylmethanedisulphonate and sodiumdioctylsulphosuccinate; and (c) 20 to 80% by weight of the dispersion of water.
Claim 3
Dependent Claim
12 words
A dispersion according to claim 1 which contains an acid wool dyestuff.
Claim 4
Dependent Claim
11 words
A dispersion according to claim 1 which contains metal-containing anionic dyestuffs.
Claim 5
Dependent Claim
26 words
A stable dispersion according to claim 3 wherein the metal-complex dyestuffs contain an unsubstituted N-mono- or N,N-di-alkyl-substituted sulphonic acid amide group or a low-molecular alkylsulphonyl group.
Claim 6
Dependent Claim
11 words
A dispersion according to claim 1 which contains non-metallized anionic dyestuffs.
Claim 7
Dependent Claim
31 words
A dispersion according to claim 1 which contains in addition to the dispersing agent up to 5 percent by weight, relative to the weight of the stable dispersion, of dibutylnaphthalene sulphonate.
Claim 8
Dependent Claim
21 words
A dispersion according to claim 1 which further contains as an auxiliary agent a humectant, antisedimentation agent, bactericide or combination thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |