Patent US3663156A successfully refreshed from Google Patents.
US3663156A
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Fast dyeing cellulose fibrous materials with reactive water-soluble trifluorocyclobutenyl azo dyes
Assignee: Hoechst AG
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Filing: 1968-08-07
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Granted: 1972-05-16
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Expires: 1988-08-07
Abstract
Abstract R represents hydrogen or lower alkyl, R'' and R'''' represent hydrogen, lower alkyl or phenyl and m represents the integer 1 or 2. A process for producing fast dyeings or prints on cellulose fibrous materials, which comprises treating the said fibrous materials in any sequence with an alkaline agent and a watersoluble dyestuff of the formula IN WHICH Z represents the radical of a water-soluble organic dyestuff molecule being linked to the identified side grouping directly or via the bridging member
Inventors
- 👤 Fritz Meininger
- 👤 Helmold Von Plessen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:36
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/58; D06P3/60; D06P3/66; D06P1/00; D06P1/38; C; C09; C09B; C09B29/00; C09B29/10; C09B29/16; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
54 words
The process as claimed in claim 1, wherein the cellulose fibrous materials are padded or printed with an aqueous solution or printing paste containing a dyestuff of the identified structural formula and an alkaline agent, and subsequently exposed to a heat treatment at a temperature ranging from about 50* C. to about 160* C.
Claim 2
Dependent Claim
57 words
The process as claimed in claim 1, wherein the cellulose fibrous materials are padded with an aqueous solution containing a dyestuff of the identified structural formula and an alkali metal hydroxide, and the dyestuff is subsequently fixed by dwelling the padded materials in the air at a temperature ranging from about 15* C. to about 40* C.
Claim 3
Dependent Claim
78 words
The process as claimed in claim 1, wherein the cellulose fibrous materials are padded or printed with a neutral or acidic aqueous solution or printing paste containing a dyestuff of the identified structural forMula, and the padded or printed fibrous materials are allowed to pass through an aqueous alkaline bath containing an alkali metal salt of a mineral acid, and subsequently exposed to a heat treatment at a temperature ranging from about 50* C. to about 160* C.
Claim 4
Dependent Claim
31 words
A process as claimed in claim 1 wherein said alkaline agent is an alkali metal hydroxide, carbonate, phosphate, borate, bicarbonate or salt of trichloroacetic acid or an alkaline earth metal hydroxide.
Claim 5
Dependent Claim
15 words
A process as claimed in claim 5 wherein said alkali metal is sodium or potassium.
Claim 6
Dependent Claim
25 words
A process as claimed in claim 1 wherein said alkaline agent is sodium hydroxide, sodium carbonate, sodium bicarbonate, trisodium phosphate, potassium hydroxide or potassium carbonate.
Claim 7
Dependent Claim
15 words
A process as claimed in claim 3 wherein said alkali metal is sodium or potassium.
Claim 8
Dependent Claim
31 words
A process as claimed in claim 2 wherein said alkaline agent is an alkali metal hydroxide, carbonate, phosphate, borate, bicarbonate or salt of trichloroacetic acid or an alkaline earth metal hydroxide.
Claim 9
Dependent Claim
40 words
A process as claimed in claim 4 wherein said alkaline agent is an alkali metal hydroxide, carbonate, phosphate, borate, bicarbonate or salt of trichloroacetic acid or an alkaline earth metal hydroxide and wherein said alkali metal is sodium or potassium.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |