US3606988A
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Process for dyeing nitrogen-containing fibre materials
Assignee: Bayer AG
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Filing: 1968-07-30
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Granted: 1971-09-21
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Expires: 1988-07-30
Abstract
Abstract Process for dyeing nitrogen-containing fiber materials, e.g., wool, with acid dyestuffs or metal complex dyestuffs wherein the dyeing process is carried out in the presence of, as a dyeing auxiliary, the reaction product of (1) an alkylene oxide and (2) the condensation product of (a) formaldehyde, (b) a phenolic compound, and (c) an amine containing at least two -NH groups; or the quaternization or esterification products of said reaction product (2).
Inventors
- 👤 Klaus Walz
- 👤 Mathieu Quaedvlieg
- 👤 Manfred Baecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:47
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/06; C; C08; C08G; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C08G14/12; C08G8/00; C08G8/04; C08G8/08; C08G8/10; C08G8/12; C08G8/14; C08G8/16; C08G8/20; C08G8/22; C08G8/28; C08G8/36; D06P1/00; D06P1/44; D06P1/52; D06P1/56; D06P1/60; D06P1/607; D06P1/6076; D06P3/046; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
12 words
The process of claim 1 wherein said alkylene oxide is ethylene oxide.
Claim 2
Dependent Claim
54 words
The process of claim 1 wherein said dyeing auxiliary is the reaction product of (1) an alkylene oxide and (2) the condensation product of a. formaldehyde or formaldehyde yielding compound; b. phenolic compound containing at least two nuclear hydrogen atoms reactive with formaldehyde; and c. amine containing at least two NH-groups reactive with formaldehyde.
Claim 3
Dependent Claim
41 words
The process of claim 1 wherein said dyeing auxiliary is the quaternization product of the reaction product obtained by quaternization with an agent selected from the group consisting of dimethylsulfate, diethylsulfate, ethyl iodide, p-toluenesulfonic acid methyl ester, chloro-acetamide and benzyl chloride.
Claim 4
Dependent Claim
45 words
The process of claim 1 wherein said dyeing auxiliary is the esterification product of the reaction product obtained by esterification with an agent selected from the group consisting of sulfuric acid, phosphoric acid, maleic acid, chlorosulfonic acid, amidosulfonic acid, phosphorus oxychloride and maleic acid anhydride.
Claim 5
Dependent Claim
29 words
The process of claim 1 wherein the nitrogen containing fiber is selected from the group consisting of wool, silk, synthetic polyamides, basic-modified polyacrylonitriles, and their mixtures with one another.
Claim 6
Dependent Claim
12 words
The process of claim 6 wherein the fiber is wool or silk.
Claim 7
Dependent Claim
17 words
The process of claim 1 wherein the reactant (2)(a) is formaldehyde, paraformaldehyde, trioxymethylene, formaldehyde dimethyl-aceTal and hexamethylene-tetramine.
Claim 8
Dependent Claim
64 words
The process of claim 1 wherein the reactant (2)(b) is selected from the group consisting of phenol, cresols, ethylphenols, isopropylphenols, p-tert.-butylphenol, o-cyclohexylphenol, iso-nonylphenol, guaiacol, hydroxyacetophenone, o-, m- or p- chlorophenol, salicyclic acid, p-dimethylaminophenol, p-acetamidophenol, Alpha -naphthol, Beta -naphthol, alkylnaphthols, tetrahydronaphthol, 4,4''-dihydroxydiphenyl, 4,4''-dihydroxy-diphenyl-methane, hydroquinone, resorcinol, pyrocatechol and the ethers which can be obtained therefrom by the reaction with alkyl halides, alkyl sulfates, or alkylene oxides.
Claim 9
Dependent Claim
42 words
The process of claim 1 wherein the reactant (2)(c) is selected from the group consisting of ethylene-diamine, N,N''-dimethyl-ethylene-diamine, N-(2-hydroxyethyl)-ethylene-diamine, propylene-diamine, N-methyl-propylene-diamine, N,N''-dimethyl-propylene-diamine, N-butyl-propylene-diamine, N-tetradecylpropylene-diamine, 1,4-butylene-diamine, hexamethylene-diamine, 2,2,4-trimethyl-hexamethylene-diamine-(1,6), bis-(3-aminopropyl)ether, bis-(3-aminopropyl)-methyl-amine, bis-(3-aminopropyl)-sulfide, epsilon -aminocaproic acid amide, N,N-bis-(2-carbamoylethyl)-methylamine, 1,4,-diamino-cyclohexane, phenylene-diamine, naphthylene-diamine, 1,4-bis-(aminobethyl)-benzene, 1,3-bis-(aminomethyl)-4,6-dimethyl-benzene and piperazine.
Claim 10
Dependent Claim
19 words
The process of claim 1 wherein the molar ratio of the reactants 2(a) : 2(b) : 2(c) is 1-4:1:0.5-3.
References Cited (Backward Citations)
US3401004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |