US4191532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic compounds
Assignee: Sandoz AG
•
Filing: 1978-01-26
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Granted: 1980-03-04
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Expires: 1998-01-26
Abstract
Abstract Disclosed is a liquid dye concentrate for dilution down to form a dyebath for the dyeing of blend substrates comprising acid and cationic dyeable fibres, which concentrate comprises at least one acid dye, at least one cationic dye and, as auxiliary agents, a nonionic or anionic polyglycol ether, or a mixture thereof, and a cationic, amino group containing polyglycol ether, other preferred optional additives being a low molecular weight carboxylic acid, such as acetic or formic, and one or more aliphatic C6-16 alcohols, particularly for viscosity stabilization and/or foam inhibition. Also disclosed is a dyeing process employing such a concentrate in dilute form.
Inventors
- 👤 Rolf Gross
- 👤 Rene Fricker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:00
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/82; D06P3/8204; D06P3/8271; C; C09; C09B; C09B67/00; C09B67/0033; C09B67/0071; C09B69/00; C09B69/02
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
58 words
A stable liquid dye concentrate comprising (1) at least one acid dyestuff, (2) at least one cationic dyestuff, (3) a nonionic or anionic polyglycol ether or mixture thereof, and (4) a cationic amino group-containing polyglycol ether, said dyestuffs comprising 5 to 50% by weight of said concentrate and said polyglycol ethers comprising 10-50% by weight of said concentrate.
Claim 2
Dependent Claim
58 words
A stable liquid dye concentrate comprising (1) at least one acid dyestuff, (2) at least one cationic dyestuff, (3) a nonionic or anionic polyglycol ether or mixture thereof, and (4) a cationic amino group-containing polyglycol ether, said dyestuffs comprising 5 to 50% by weight of said concentrate and said polyglycol ethers comprising 10-50% by weight of said concentrate.
Claim 3
Dependent Claim
19 words
A concentrate of claim 1, wherein said nonionic and anionic polyglycol ethers contain from 4 to 100 alkylene-oxide units.
Claim 4
Dependent Claim
16 words
A concentrate of claim 2, wherein said alkylene-oxide units are of 2 or 3 carbon atoms.
Claim 5
Dependent Claim
15 words
A concentrate of claim 2, wherein said ethers contain from 10 to 80 alkylene-oxide units.
Claim 6
Dependent Claim
34 words
A concentrate of claim 1, wherein the nonionic polyglycol ether is an addition product of 6 to 90 mols of an alkylene-oxide per mol of an aliphatic alcohol of 14 to 20 carbon atoms.
Claim 7
Dependent Claim
37 words
A concentrate of claim 1, wherein the nonionic polyglycol ether is an addition product of 8 to 100 mols of alkylene-oxide per mol of a mono- or dialkylphenol of total alkyl carbon content of 8 to 24.
Claim 8
Dependent Claim
37 words
A concentrate of claim 1, wherein the nonionic polyglycol ether is an addition product of 5 to 100 mols of an alkylene-oxide per mol of a saturated or unsaturated aliphatic acid containing 12 to 20 carbon atoms.
Claim 9
Dependent Claim
27 words
A concentrate of claim 1, wherein the nonionic polyglycol ether is an addition product of 20 to 60 mols of an alkylene-oxide per mol of castor oil.
Claim 10
Dependent Claim
51 words
A concentrate of claim 1, wherein the nonionic polyglycol ether is the addition product of a alkylene-oxide with a polypropylene glycol or polytetrahydrofuran of mol wt. from 1,000 to 5,000, 30 to 100 parts by weight of alkylene-oxide being employed per part by weight of the polypropylene glycol or polytetrahydro furan.
Claim 11
Dependent Claim
16 words
A concentrate of claim 1, wherein said anionic polyglycol ether is a carboxymethylated nonionic polyglycol ether.
Claim 12
Dependent Claim
46 words
A concentrate of claim 1, wherein said anionic polyglycol ether is a sulphuric acid half ester derivative of an addition product 20 to 100 mols of alkylene-oxide per mol of a C 14-20 aliphatic alcohol, or an alkali-metal or ammonium salt form of such half ester.
Claim 13
Dependent Claim
58 words
A concentrate of claim 1, wherein said anionic polyglycol ether is a sulphuric acid half ester of an addition product of 4 to 40 mols of alkylene-oxide per mol of a mono- or di-alkyl phenol with a total of 8 to 24 carbon atoms in the alkyl group(s), or an alkali-metal or ammonium salt of such half ester.
Claim 14
Dependent Claim
24 words
A concentrate of claim 1, wherein the cationic polyglycol ether is an amino group containing polyglycol ether with from 5 to 120 alkylene-oxide units.
Claim 15
Dependent Claim
31 words
A concentrate of claim 13, wherein the cationic polyglycol ether is the reaction product of an aliphatic amine of 16 to 20 carbon atoms with 7 to 20 mols of ethylene-oxide.
Claim 16
Dependent Claim
43 words
A concentrate of claim 13, wherein the cationic polyglycol ether is the reaction product of 7 to 20 mols of a (C 2-3 )alkylene-oxide per mol of the reaction product of epichlorohydrin with a poly(2-6)alkylene(C 2-3 )polyamine, the polyglycol ether optionally being quaternised.
Claim 17
Dependent Claim
31 words
A concentrate of claim 13, wherein the cationic polyglycol ether is a condensation product of an alkyl(C 12-20 )oxyalkylene(C 2-4 )oxide with a poly(2-6)-alkylene(C 2-3 )polyamine and a C 2-3 alkylene-oxide.
Claim 18
Dependent Claim
19 words
A concentrate according to claim 1 wherein the polyglycol ethers comprise 15 to 40% by weight of the concentrate.
Claim 19
Dependent Claim
28 words
A concentrate of claim 1, wherein the weight ratio of nonionic and/or cationic polyglycol ether to cationic polyglycol ether is in the range of from 50:1 to 1:1.
Claim 20
Dependent Claim
13 words
A concentrate of claim 1, containing additionally a low molecular weight carboxylic acid.
Claim 21
Dependent Claim
12 words
A concentrate of claim 19, wherein said acid is formic or acetic.
Claim 22
Dependent Claim
26 words
A concentrate of claim 20, wherein said acid is present in an amount of from 10 to 30% based on the total weight of the concentrate.
Claim 23
Dependent Claim
13 words
A concentrate of claim 1, containing one or more aliphatic C 6-16 alcohols.
Claim 24
Dependent Claim
27 words
A concentrate of claim 22, wherein said alcohol(s) is (are) present in an amount of from 5 to 15% based on the total weight of the concentrate.
Claim 25
Dependent Claim
11 words
A concentrate of claim 22, containing an aliphatic C 12-15 alcohol.
Claim 26
Dependent Claim
11 words
A concentrate of claim 22, containing an aliphatic C 8-10 alcohol.
Claim 27
Dependent Claim
29 words
A concentrate of claim 22, containing both an aliphatic C 12-15 alcohol and an aliphatic C 8-10 alcohol in a weight ratio of one to the other of 1:1.
Claim 28
Dependent Claim
21 words
A concentrate according to claim 1, wherein the weight ratio of acid dye to cationic dye is from 3:1 to 1:3.
Claim 29
Dependent Claim
8 words
A concentrate according to claim 1, containing water.
References Cited (Backward Citations)
DE2442421A1
Cited
BE838175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |