Patent US3945793A successfully refreshed from Google Patents.
US3945793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the colouration of acid-modified synthetic textile fibers and acrylic fibers
Assignee: FMC Corp
•
Filing: 1974-01-23
•
Granted: 1976-03-23
•
Expires: 1994-01-23
Abstract
Abstract Process for the colouration of acid-modified synthetic textile fibres, particularly polyacrylonitrile fibres or basic dyeable polyester fibres, wherein said fibres are coloured with a cationic dye in the presence of a compound of the formula ##EQU1## wherein R is a chloro-substituted phenyl group, Z is hydrogen or methyl and n is an integer from 1 to 3, obtaining on said fibres a rapid fixation of the cationic dye and an outstanding colour yield.
Inventors
- 👤 George Samuel Anthony Corbishley
- 👤 Leonard Walter Burns
- 👤 James Jack
- 👤 John Francis Edmund Keenan
- 👤 Cyril Hobday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:34
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/70; D06P3/76; D06P1/00; D06P1/44; D06P1/60; D06P1/613; D06P1/6131; D06P1/6135; D06P1/64; D06P1/651; D06P1/65106; D06P3/34; D06P3/52; D06P3/522; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922; Y10S8/927
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
69 words
A process for the coloring of acidmodified polyester fibers or polyacrylonitrile fibers comprising treating said fibers with a preparation consisting essentially of an aqueous solution of a cationic dye and as dye carries an effective amount of at least one component having the formula Ia R -- O--CH.sub.2 CH.sub.2 O) .sub.n H (Ia) wherein R is a chloro-substituted phenyl group and n is an integer from 1 to 3.
Claim 2
Dependent Claim
69 words
A process for the coloring of acidmodified polyester fibers or polyacrylonitrile fibers comprising treating said fibers with a preparation consisting essentially of an aqueous solution of a cationic dye and as dye carries an effective amount of at least one component having the formula Ia R -- O--CH.sub.2 CH.sub.2 O) .sub.n H (Ia) wherein R is a chloro-substituted phenyl group and n is an integer from 1 to 3.
Claim 3
Dependent Claim
11 words
A process as described in claim 1 wherein n is 1.
Claim 4
Dependent Claim
37 words
A process as described in claim 1 wherein the compound of formula Ia is derived from an average of one mole of ethylene oxide per mole of a mixture of 20% of orthochlorophenol and 80% of para-chlorophenol.
Claim 5
Dependent Claim
25 words
A process as described in claim 1 wherein the acidmodified synthetic textile fibers are polyacrylonitrile fibers which contain at least 80% by weight of acrylonitrile.
Claim 6
Dependent Claim
59 words
A process as described in claim 4 comprising impregnating acrylic fibers at a temperature below te fixation temperature of the dyestuff with a dye impregnation liquor which contains a cationic dyestuff and a carrier consisting of at least one compound of the formula Ia, removing excess liquor from the impregnated acrylic fibers and steaming and rinsing the resulting dyeing.
Claim 7
Dependent Claim
57 words
A process as described in claim 5 comprising printing acrylic fibers at a temperature below the fixation temperature of the dyestuff with a printing mixture which contains a cationic dyestuff, a thickener and a carrier consisting of at least one compound of the formula Ia, removing excess liquor from the impregnated acrylic fibers and steaming and rinsing.
Claim 8
Dependent Claim
32 words
A process as described in claim 6 wherein the amount of compound having the formula Ia is from 1% to 5% by volume based on the total volume of the printing mixture.
Claim 9
Dependent Claim
32 words
A process as described in claim 7 wherein the amount of compound having the formula Ia is from 2% to 4% by volume based on the total volume of the printing mixture.
Claim 10
Dependent Claim
36 words
A process as described in claim 4 comprising dyeing polymeric or copolymeric acrylonitrile fibers with a dye liquor which contains a cationic dyestuff and a carrier consisting of at least one compound of the formula Ia.
Claim 11
Dependent Claim
32 words
A process as described in claim 9 wherein the amount of compound having the formula Ia is from 0.25% to 0.75% by volume based on the total volume of the dye liquor.
Claim 12
Dependent Claim
20 words
A process as described in claim 9 wherein the dye is applied at a temperature from 80°C to the boil.
Claim 13
Dependent Claim
19 words
A process as described in claim 11 wherein the acid-modified synthetic textile fibers is a basic dyeable polyester fiber.
Claim 14
Dependent Claim
34 words
A process as described in claim 12 comprising dyeing basic dyeable polyester fibers with a dye liquor whic contains a cationic dye and a carrier consisting of at least one compound of formula Ia.
Claim 15
Dependent Claim
32 words
A process as described in claim 13 wherein the amount of compound having the formula Ia is from 0.05% to 2% by volume based on the total volume of the dye liquor.
Claim 16
Dependent Claim
32 words
A process as described in claim 14 wherein the amount of compound having the formula Ia is from 0.25% to 0.75% by volume based on the total volume of the dye liquor.
Claim 17
Dependent Claim
21 words
A process as described in claim 15 wherein the dyeing is carried out at a temperature from 60°C to the boil.
Claim 18
Dependent Claim
20 words
A process as described in claim 16 wherein the dyeing is carried out at a temperature from 65°C to 85°C.
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) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |