Patent US3957430A successfully refreshed from Google Patents.
US3957430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the colouration of acrylic fibres
Assignee: Novartis Corp
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Filing: 1975-01-15
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Granted: 1976-05-18
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Expires: 1995-01-15
Abstract
Abstract A process for the colouration of polyacrylonitrile textile fibres, wherein said fibres are coloured by printing or pad-steaming with a cationic dye in the presence of a carrier consisting of least one compound having the formula ##EQU1## in which Y is an oxygen or sulphur atom and m is a number from 1 to 2, obtaining on said fibres a rapid fixation of the cationic dye and a high colour yield.
Inventors
- 👤 Brian Hewitt
- 👤 Cyril Hobday
- 👤 James Jack
- 👤 John Francis Edmund Keenan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:33
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/6421; D06P1/651; D06P1/65106; D06P1/65131; D06P3/00; D06P3/70; D06P3/76; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
53 words
A process for the colouration of polyacrylonitrile fibres which comprises printing or pad-steaming said fibres with a cationic dye in the presence of a carrier consisting of at least one compound having the formula ##EQU3## in which Y is an oxygen or sulphur atom and m is a number from 1 to 2.
Claim 2
Dependent Claim
53 words
A process for the colouration of polyacrylonitrile fibres which comprises printing or pad-steaming said fibres with a cationic dye in the presence of a carrier consisting of at least one compound having the formula ##EQU3## in which Y is an oxygen or sulphur atom and m is a number from 1 to 2.
Claim 3
Dependent Claim
17 words
A process as claimed in claim 1, wherein the polyacrylonitrile fibres are coloured by a printing process.
Claim 4
Dependent Claim
22 words
A process as claimed in claim 1, wherein Y is oxygen and m has an average value of from 1 to 1.5.
Claim 5
Dependent Claim
13 words
A process as claimed in claim 1, wherein m is 1 or 2.
Claim 6
Dependent Claim
15 words
A process as claimed in claim 1, wherein the compound of formula (1) is 3-(2'-phenoxyethoxy)propionitrile.
Claim 7
Dependent Claim
17 words
A process as claimed in claim 1, wherein the compound of the formula (1) is 3-[2'-(2"-phenoxyethoxy)ethoxy] propionitrile.
Claim 8
Dependent Claim
15 words
A process as claimed in claim 1, wherein the compound of formula (1) is 3-[2'-(phenylthio)ethoxy]propionitrile.
Claim 9
Dependent Claim
38 words
A process as claimed in claim 1, wherein the amount of the compound having the formula (1) used is from 0.5% to 10% by weight based on the total weight of the print paste or the pad liquor.
Claim 10
Dependent Claim
38 words
A process as claimed in claim 8, wherein the amount of the compound having the formula (1) used is from 1% to 5% by weight based on the total weight of the print paste or the pad liquor.
Claim 11
Dependent Claim
27 words
A process as claimed in claim 1, wherein the polyacrylonitrile textile fibres are polymeric or copolymeric acrylonitrile fibres which contains at least 80% by weight of acrylonitrile.
Claim 12
Dependent Claim
61 words
A process as claimed in claim 1 comprising printing textile polyacrylonitrile fibres at a temperature below the fixation temperature of the dyestuff with a printing paste which contains a cationic dyestuff, a thickener and a carrier consisting of at least one compound of the formula (1), removing excess paste from the impregnated polyacrylonitrile fibres and steaming and rinsing the resulting print.
Claim 13
Dependent Claim
59 words
A process as claimed in claim 1 comprising padding textile polyacrylonitrile fibres at a temperature below the fixation temperature of the dyestuff with a pad liquor which contains a cationic dyestuff and a carrier consisting of at least one compound of the formula (1), removing excess liquor from the impregnated polyacrylonitrile fibres and steaming and rinsing the resulting dyeing.
Claim 14
Dependent Claim
20 words
A process as claimed in claim 11 whenever the steaming is carried out at a temperature from 100° to 110°C.
Claim 15
Dependent Claim
16 words
A process as claimed in claim 12 whenever the steaming is carried out at atmospheric pressure.
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) | 1979-05-18 | 1979-11-17 | 1980-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-18 | 1983-11-17 | 1984-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-18 | 1987-11-17 | 1988-05-18 | $7700.00 | Window Closed / Lapsed |