Patent US3765831A successfully refreshed from Google Patents.
US3765831A
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Treatment of polypeptide fibres
Assignee: PRODUITS CHIMIQUES UGINE KUKLMANN
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Filing: 1971-11-02
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Granted: 1973-10-16
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Expires: 1991-11-02
Abstract
Abstract The present invention provides a process for dyeing polypeptide fibres which comprises dyeing said fibres with an anionic dyestuff in the presence of (1) at least one polyoxyalkylenated non-ionic dispersing agent resulting from the condensation of an alkylene oxide with an aliphatic alcohol or an alkylphenol and (2) at least one polyoxyalkylenated condensate resulting from the condensation of an alkylene oxide with an aliphatic amine containing 12 to 20 carbon atoms and esterification with an oxygen-containing polyacid. There are also provided compositions comprising said dispersing agents and said polyoxyalkylenated condensates.
Inventors
- 👤 C Senez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:02
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/60; D06P1/613; D06P1/6131; D06P1/6133; D06P1/607; D06P1/6076; D06P1/6135; D06P3/00; D06P3/02; D06P3/04; D06P3/06; D06P3/82; D06P3/8204; D06P3/8209; D06P5/00; D06P5/001; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
70 words
A process as claimed in claim 1 wherein the fibres are first treated in an aqueous bath containing at least one anionic dispersing agent (1) and at least one polyoxyalkylenated ester (2) at a pH near to the isoelectric point of the fibres and at a temperature between 40* and 85* C., the dyestuff is then added and dyeing is effected at an approximately constant temperature not exceeding 85* C.
Claim 2
Dependent Claim
61 words
A composition comprising an aqueous mixture of (1) at least one polyoxyalkylenated non-ionic dispersing agent resulting from the condensation of an alkylene oxide with an aliphatic alcohol or an alkylphenol and (2) at least one polyoxyalkylenated condensate resulting from the condensation of an alkylene oxide with an aliphatic amine containing 12 to 20 carbon atoms and esterification with an oxygen-containing polyacid.
Claim 3
Dependent Claim
15 words
A composition as claimed in claim 3 wherein the ester (2) is of the formula:
Claim 4
Dependent Claim
47 words
A composition as claimed in claim 3 wherein the non-ionic dispersing agent (1) is of the formula: R'' (-OCH2 - CH2)q - OH wherein R'' represents an aliphatic or alkylphenyl radical containing 10 to 22 carbon atoms and q is a whole number from 10 to 50.
Claim 5
Dependent Claim
30 words
A composition as claimed in claim 3 wherein the ratio of the amount of non-ionic dispersing agent used to the amount of polyoxyalkylenated condensate used is between 0.6 and five.
Claim 6
Dependent Claim
17 words
A composition as claimed in claim 3 wherein the polyoxyalkylenated condensate is the compound of the formula:
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 |