US3759963A
Expired / Lapsed
US
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Water insoluble anthraquinone dyes for cellulosic and synthetic fibers
Assignee: EIDP Inc
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Filing: 1971-07-30
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Granted: 1973-09-18
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Expires: 1991-07-30
Abstract
Abstract Essentially water insoluble, non-vattable, blue to green 1nitroaroylamino-5,8-di(N-substituted)aminoanthraquinone dyes, for example, 1-(p-nitrobenzamide)-5,8-bis(p-toluidino)-anthraquinone, useful for dyeing water swellable cellulosic fibers, for example, cotton fibers, or synthetic fibers, for example, polyester fibers, or blends or mixtures thereof, said dyed fibers being fast to light, washing, drycleaning and sublimation.
Inventors
- 👤 Guire T Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:00
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/58; D06P3/60; D06P3/6033; D06P3/6041; C; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/36; C09B1/42; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
14 words
The dye of claim 1 wherein each X is p-toluidino and R1 is p-nitrophenyl.
Claim 2
Dependent Claim
11 words
The dye of claim 2 containing a minor amount of 1-(p-nitrobenzamido)-4,5,8-tris(p-toluidino)anthraquinone.
Claim 3
Dependent Claim
23 words
The dye of claim 1 wherein each X is m-chloroanilino and R1 is p-nitrophenyl, which dye contains up to 15 percent of 1-(p-nitrobenzamido-4,5,8-tris(m-chloroanilino)anthraquinone.
Claim 4
Dependent Claim
14 words
The dye of claim 1 wherein each X is p-n-butylanilino and R1 is p-nitrophenyl.
Claim 5
Dependent Claim
14 words
The dye of claim 1 wherein each X is xylidino and R1 is p-nitrophenyl.
Claim 6
Dependent Claim
14 words
The dye of claim 1 wherein each X is cyclohexylamino and R1 iS p-nitrophenyl.
References Cited (Backward Citations)
GB1147110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |