Patent US3765839A successfully refreshed from Google Patents.
US3765839A
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US
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Process for improving the wet fastness properties of dyeings on polyamide fibre material
Assignee: Novartis AG
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Filing: 1971-08-24
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Granted: 1973-10-16
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Expires: 1991-08-24
Abstract
Abstract A process for improving the wet fastness properties of dyeings on synthetic polyamide fiber material is provided. The process is characterized in that preparations are applied to the fiber material at temperatures of 20* to 120*C, which contain a watersoluble fixing agent with affinity for the fiber, an organic solvent or solvent mixture and at most 10 percent of water, relative to the preparation, and also, optionally an organosoluble dispersing agent. The fiber material thus treated shows very good fastness properties and no deterioration of handle.
Inventors
- 👤 V Mueller
- 👤 H Berendt
- 👤 M Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:47
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/928; D06P1/44; D06P1/52; D06P1/56; D06P1/922; D06P5/00; D06P5/02; D06P5/04; Y; Y10; Y10S; Y10S8/00; Y10S8/903
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
23 words
Process according to claim 1, wherein the fixing agents are condensation products of diarylsulphones, possessing at least one phenolic hydroxyl group, with formaldehyde.
Claim 2
Dependent Claim
19 words
Process according to claim 1, wherein the fixing agents are diarylsulphones which are derived from monocyclic hydroxy aryl compounds.
Claim 3
Dependent Claim
16 words
Process according to claim 1, wherein the fixing agents are condensation products of dihydroxy-diphenylsulphones with formaldehyde.
Claim 4
Dependent Claim
19 words
Process according to claim 1, wherein the fixing agents are condensation products of sulphonic acids of dihydroxy-diphenylsulphones with formaldehyde.
Claim 5
Dependent Claim
14 words
Process according to claim 1, wherein the organic solvents are 1,1,1-trichloroethane, trichloroethylene and/or perchloroethylene.
Claim 6
Dependent Claim
14 words
Process according to claim 1, wherein the preparation additionally contains an organo-soluble dispersing agent.
Claim 7
Dependent Claim
35 words
Process according to claim 7, wherein the dispersing agents are surface-active, organo-soluble non-ionic or anionic compounds, which in particular are obtained by addition of ethylene oxide to long-chain amines, alcohols, phenols or fatty acid esters.
Claim 8
Dependent Claim
20 words
Process according to claim 1, wherein the amounts of fixing agent are 0.1 to 10 percent relative to the fibres.
Claim 9
Dependent Claim
49 words
A stable fixing agent preparation for carrying out the process according to claim 1, which contains as fixing agent water-soluble, anionic polycondensation products of arylsulphonic acids, and/or diarylsulphones with formaldehyde and an organic solvent or solvent mixture and at most 10 percent of water, relative to the total preparation.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |