US3754858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for continuous dyeing polyester fiber material with anthraquinone dyestuff
Assignee: Bayer AG
•
Filing: 1971-01-28
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Granted: 1973-08-28
•
Expires: 1991-01-28
Abstract
Abstract IN WHICH X, Y and n have the meaning given in the description below and are subsequently subjected to a heat treatment. There are obtained without originating waste waters dyeings which are characterised by excellent fastness properties. Process for the continuous dyeing of synthetic fibre materials from organic solvents wherein the fibre materials are impregnated with dye liquors containing anthraquinone dyestuffs of the formula
Inventors
- 👤 V Hederich
- 👤 G Gehrke
- 👤 M Groll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:45
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/90; D06P1/908; C; C09; C09B; C09B1/00; C09B1/50; C09B1/503; C09B1/54; C09B1/547; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922; Y10S8/938
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
115 words
The process of claim 1 in which X is -OR2, -COOR3, -O-COR4, -OCOOR5, -OSO2R6, or -O2-S-OR7; R2 is C1-C18-alkyl, cyclohexyl, methylcyclohexyl, benzyloxy, methylbenzyloxy, phenoxy or methylphenoxy; R3 is C1-C12-akyl, cyclohexyl, methylcyclohexyl, benzyl, methylbenzyl, phenyl, methylphenyl, ethylphenyl, propylphenyl, chlorophenyl, methoxyphenyl, isopropoxy-phenyl or chloro-methyl-phenyl; R4 is C1-C16-alkyl, cyclohexyl, methylcyclohexyl, benzyl, methylbenzyl, phenyl, methylphenyl, ethylphenyl, or naphthyl; R5 is C1-C8-alkyl, cyclohexyl, methylcyclohexyl, benzyl or methylbenzyl; R6 is C1-C18-alkyl, cyclohexyl, methylcyclohexyl, benzyl, methylbenzyl, phenyl, methylphenyl, ethyl-phenyl, propylphenyl, chlorophenyl, methoxyphenyl, or C1-C4-dialkylamino; R7 is phenyl or phenyl substituted with alkyl of up to nine carbon atoms, alkoxy of up to 3 carbon atoms or chloro; Y is halogen, C1-C12-alkyl or C1-C6-alkoxy; and n is a number from 0 to 3.
Claim 2
Dependent Claim
14 words
The process of claim 1 in which X is -OR, or -O-COR or -OSO2R1.
Claim 3
Dependent Claim
16 words
The process of claim 1 in which X is -O-COR or -O-SO2-R1; and n is 0.
Claim 4
Dependent Claim
24 words
The process of claim 1 in which said water-immiscible organic solvent is an aliphatic chlorohydrocarbon having a boiling point of between 40* and 150*C.
Claim 5
Dependent Claim
30 words
The process of claim 1 in which said water-immiscible organic solvent is selected from a chlorinated or a chlorofluorinated aliphatic organic solvent having a boiling point between 40* and 150*C.
Claim 6
Dependent Claim
17 words
The process of claim 1 in which said anthraquinone dyestuff is soluble in said water-immiscible organic solvent.
Claim 7
Dependent Claim
30 words
The process of claim 7 in which the dyed material is subjected to a subsequent step of (C) rinsing with water-immiscible organic solvent in which said anthraquinone dyestuff is soluble.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |