Patent US4245990A successfully refreshed from Google Patents.
US4245990A
Expired / Lapsed
US
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Process for producing solutions of salts of water-soluble carboxylic acids of cationic dyes or optical brighteners
Assignee: BASF Corp
•
Filing: 1978-12-21
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Granted: 1981-01-20
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Expires: 1998-12-21
Abstract
Abstract A process for producing solutions of salts of water-soluble carboxylic acids of cationic dyes or optical brighteners, the solutions of cationic dye salts or brighteners salts which are obtained by this process and which are miscible with water in any proportion, and the use of these solutions for preparing dye liquors and printing pastes for dyeing, optical brightening and printing of, in particular, synthetic textile materials, which process comprises reacting the halide of a cationic dye or brighteners, in an aqueous or anhydrous medium, with at least one water-soluble carboxylic acid in the presence of an epoxide compound having a minimum of 13 carbon atoms.
Inventors
- 👤 Peter Loew
- 👤 Walter Lang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:09
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/41; C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0075; C09B67/0076; D06L; D06L4/00; D06L4/60; D06L4/664
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
58 words
A process for producing solutions of salts of water-soluble carboxylic acids of cationic dyes or of cationic optical brighteners, which process comprises reacting the halide of a cationic dye or brightener, in an aqueous or anhydrous medium, with at least one water-soluble carboxylic acid in the presence of an epoxide compound having a minimum of 13 carbon atoms.
Claim 2
Dependent Claim
58 words
A process for producing solutions of salts of water-soluble carboxylic acids of cationic dyes or of cationic optical brighteners, which process comprises reacting the halide of a cationic dye or brightener, in an aqueous or anhydrous medium, with at least one water-soluble carboxylic acid in the presence of an epoxide compound having a minimum of 13 carbon atoms.
Claim 3
Dependent Claim
18 words
A process according to claim 1, wherein the halide used is the chloride of the dye or brightener.
Claim 4
Dependent Claim
16 words
A process according to claim 1, wherein at least one water-soluble aliphatic carboxylic acid is used.
Claim 5
Dependent Claim
20 words
A process according to claim 3, wherein the carboxylic acid used is a substituted or unsubstituted lower aliphatic carboxylic acid.
Claim 6
Dependent Claim
15 words
A process according to claim 3, wherein the carboxylic acid used is a monocarboxylic acid.
Claim 7
Dependent Claim
15 words
A process according to claim 3, wherein the carboxylic acid used is a dicarboxylic acid.
Claim 8
Dependent Claim
15 words
A process according to claim 3, wherein the carboxylic acid used is a tricarboxylic acid.
Claim 9
Dependent Claim
15 words
A process according to claim 1, wherein the reaction is performed in aqueous carboxylic acid.
Claim 10
Dependent Claim
16 words
A process according to claim 1, wherein the reaction is performed in anhydrous liquid carboxylic acid.
Claim 11
Dependent Claim
17 words
A process according to claim 1, wherein a 30 to 2000% excess of carboxylic acid is used.
Claim 12
Dependent Claim
19 words
A process according to claim 5, wherein the water-soluble aliphatic carboxylic acid used is formic acid or acetic acid.
Claim 13
Dependent Claim
14 words
A process according to claim 1, wherein a mixture of carboxylic acids is used.
Claim 14
Dependent Claim
18 words
A process according to claim 1, wherein an excess of 10 to 300% of epoxide compound is used.
Claim 15
Dependent Claim
20 words
A process according to claim 1, wherein the epoxide compounds used are alkylene oxides having at least 13 carbon atoms.
Claim 16
Dependent Claim
21 words
A process according to claim 14, wherein the epoxide compounds used are unsubstituted alkylene oxides having at least 13 carbon atoms.
Claim 17
Dependent Claim
21 words
A process according to claim 1, wherein the epoxide compounds used are reaction products of epichlorohydrin with aliphatic alcohols or phenols.
Claim 18
Dependent Claim
11 words
A process according to claim 1, wherein polyepoxide compounds are used.
Claim 19
Dependent Claim
18 words
A process according to claim 1, wherein the epoxide compounds used are reaction products of epichlorohydrin with dialcohols.
Claim 20
Dependent Claim
19 words
A process according to claim 1, wherein the epoxide compounds used are reaction products of epichlorohydrin with polyalkylene glycols.
Claim 21
Dependent Claim
19 words
A process according to claim 1, wherein the epoxide compounds used are reaction products of epichlorohydrin with heterocyclic compounds.
Claim 22
Dependent Claim
15 words
A process according to claim 1, wherein the solution obtained is subsequently diluted with water.
Claim 23
Dependent Claim
17 words
A process according to claim 1, wherein the solution obtained is subsequently diluted with an organic solvent.
Claim 24
Dependent Claim
15 words
A liquid dye preparation or brightener preparation obtained according to the process of claim 1.
Claim 25
Dependent Claim
37 words
A liquid dye preparation or brightener preparation according to claim 23, which contains 10 to 50% of at least one salt of a water-soluble carboxylic acid, particularly of an acetate, of a cationic dye or optical brightener.
Claim 26
Dependent Claim
31 words
Method to use the dye preparation or a brightener preparation of claim 23, for producing dye or brightener liquors and printing pastes having an aqueous base or an organic solvent base.
Claim 27
Dependent Claim
23 words
Method to use the dye or brightener liquors and printing pastes of claim 25, for dyeing, optically brightening or printing synthetic textile materials.
Claim 28
Dependent Claim
21 words
Method to use the dye or brightener liquors and printing pastes of claim 26, for dyeing, optically brightening or printing polyacrylonitrile.
References Cited (Backward Citations)
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GB1236882A
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GB1349511A
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GB1352191A
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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) | 1984-01-20 | 1984-07-21 | 1985-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-20 | 1988-07-21 | 1989-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-20 | 1992-07-21 | 1993-01-20 | $7700.00 | Window Closed / Lapsed |