Patent US3852029A successfully refreshed from Google Patents.
US3852029A
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Stable concentrated solutions of direct dyes and process for their manufacture
Assignee: Novartis AG
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Filing: 1971-10-20
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Granted: 1974-12-03
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Expires: 1991-10-20
Abstract
Abstract A process for the production of stable concentrated solutions of water-soluble tertiary ammonium salts of direct dyes, substantially free of inorganic salts is described by condensing in aqueous medium two mols of tertiary ammonium salts of identical or dissimilar azo and/or coloured anthraquinone sulphonic acid and/or carboxylic acid compounds, each of said compounds containing at least one primary or secondary amino group with one mol of a polyfunctional acylating agent in the presence of at least two mols of a tertiary amine with or without the addition of further auxiliary products. The thus obtained concentrated solutions are stable and are useful for the dyeing of cellulosic material, especially paper.
Inventors
- 👤 H Bolliger
- 👤 H Potts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:55
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/12; C09B43/136; C09B43/14; C09B1/00; C09B1/16; C09B1/20; C09B1/36; C09B1/46; C09B67/00; C09B67/0071; C09B67/0072; C09B67/0073; C09B69/00; C09B69/02; C09B69/04; Y; Y10; Y10S; Y10S8/00; Y10S8/938
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
38 words
A PROCESS FOR THE PRODUCTION OF A STABLE CONCENTRATED SOLUTION OF WATER SOLUBLE TERTIIARY AMMONIUM SALTS OF DIRECT DYES, SUBSTANTIALLY FREE OF INORGANIC SALTS WHICH COMPRISES ADDING AT LEAST 2 MOLS OF A TERTIARY AMINE OF THE FORMULA
Claim 2
Dependent Claim
38 words
A PROCESS FOR THE PRODUCTION OF A STABLE CONCENTRATED SOLUTION OF WATER SOLUBLE TERTIIARY AMMONIUM SALTS OF DIRECT DYES, SUBSTANTIALLY FREE OF INORGANIC SALTS WHICH COMPRISES ADDING AT LEAST 2 MOLS OF A TERTIARY AMINE OF THE FORMULA
Claim 3
Dependent Claim
21 words
A process according to claim 1 wherein each of the compounds (A) and (B) contains at least one primary amino group.
Claim 4
Dependent Claim
15 words
A process according to claim 1, wherein the tertiary amine used is of the formula
Claim 5
Dependent Claim
12 words
A process according to claim 1 wherein the tertiary amine is triethanolamine.
Claim 6
Dependent Claim
34 words
A process according to claim 1, wherein the condensation is carried out in the presence of further auxiliary products from the group of amides of inorganic or organic acids, antifoaming agents and mixtures thereof.
Claim 7
Dependent Claim
13 words
A process according to claim 5 wherein urea is present as auxiliary agent.
Claim 8
Dependent Claim
20 words
A process according to claim 1 wherein the condensation reaction is carried out at a temperature between 20* and 70*C.
Claim 9
Dependent Claim
17 words
A process according to claim 1 wherein 2.5 to 8 mols of a tertiary amine are used.
Claim 10
Dependent Claim
48 words
A process according to claim 2, wherein the compound (A) is a tertiary ammonium salt of a monoazo sulphonic acid or carboxylic acid compound and compound (B) is a tertiary ammonium salt of a monoazo sulphonic acid or carboxylic acid compound which is different from the compound (A).
Claim 11
Dependent Claim
43 words
A process according to claim 2, wherein the compound (A) is a tertiary ammonium salt of a monoazo sulphonic acid or carboxylic acid compound and the compound (B) is a tertiary ammonium salt of a colored anthraquinone sulphonic acid or carboxylic acid compound.
Claim 12
Dependent Claim
30 words
A process according to claim 2, wherein two mols of a tertiary ammonium salt of a monoazo sulphonic acid or carboxylic acid compound are employed as compound (A) and (B).
Claim 13
Dependent Claim
162 words
A stable concentrated solution of water-soluble tertiary ammonium salt of direct dye containing a. 10 to 50 parts of the condensation product of (A) one mole of a member of the group consisting of (1) a tertiary ammonium salt of an azo sulphonic acid or carboxylic acid compound containing at least one primary or secondary amino group, and (2) a tertiary ammonium salt of a colored anthraquinone sulphonic acid or carboxylic acid compound containing at least one primary or secondary amino group, and (B) one mole of a member of the group consisting of (1) a tertiary ammonium salt of an azo sulphonic acid or carboxylic acid compound containing at least one primary or secondary amino group, and (2) a tertiary ammonium salt of a colored anthraquinone sulphonic acid or carboxylic acid compound containing at least one primary or secondary amino group with (C) one mole of phosgene, the tertiary ammonium salt being one derived from a tertiary amine of the formula
Claim 14
Dependent Claim
162 words
A stable concentrated solution of water-soluble tertiary ammonium salt of direct dye containing a. 10 to 50 parts of the condensation product of (A) one mole of a member of the group consisting of (1) a tertiary ammonium salt of an azo sulphonic acid or carboxylic acid compound containing at least one primary or secondary amino group, and (2) a tertiary ammonium salt of a colored anthraquinone sulphonic acid or carboxylic acid compound containing at least one primary or secondary amino group, and (B) one mole of a member of the group consisting of (1) a tertiary ammonium salt of an azo sulphonic acid or carboxylic acid compound containing at least one primary or secondary amino group, and (2) a tertiary ammonium salt of a colored anthraquinone sulphonic acid or carboxylic acid compound containing at least one primary or secondary amino group with (C) one mole of phosgene, the tertiary ammonium salt being one derived from a tertiary amine of the formula
Claim 15
Dependent Claim
23 words
A stable concentrated solution according to claim 12 wherein each of the compounds (A) and (B) contains at least one primary amino group.
Claim 16
Dependent Claim
16 words
A stable concentrated solution according to claim 12 wherein the tertiary amine is of the formula
Claim 17
Dependent Claim
14 words
A stable concentrated solution according to claim 12 wherein the tertiary amine is triethanolamine.
Claim 18
Dependent Claim
30 words
A stable concentrated solution according to claim 12 wherein the component (d) is a member of the group of amides of inorganic or organic acids, antifoaming agents and mixtures thereof.
Claim 19
Dependent Claim
14 words
A stable concentrated solution according to claim 16 wherein the component (d) is urea.
Claim 20
Dependent Claim
48 words
A stable concentrated solution according to claim 13 wherein the compound (A) is a tertiary ammonium salt of a monoazo sulphonic acid or carboxylic acid compound and the compound (B) is a tertiary ammonium salt of a monoazo sulphonic acid or carboxylic acid compound different from compound (A).
Claim 21
Dependent Claim
45 words
A stable concentrated solution according to claim 13 wherein the compound (A) is a tertiary ammonium salt of a monoazo sulphonic acid or carboxylic acid compound and the compound (B) is a tertiary ammonium salt of a colored anthraquinone sulphonic acid or carboxylic acid compound.
Claim 22
Dependent Claim
32 words
A stable concentrated solution according to claim 13 wherein 2 mols of a tertiary ammonium salt of a monoazo sulphonic acid or carboxylic acid compound are employed as compounds (A) and (B).
Claim 23
Dependent Claim
23 words
A stable concentrated solution according to claim 12 containing a. 25 to 40 parts of a dyestuff selected from those of the formula
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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |