US4140683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyes from thienylazo compounds and cyclohexylaminoacylanilide couplers
Assignee: Novartis Corp
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Filing: 1977-07-25
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Granted: 1979-02-20
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Expires: 1997-07-25
Abstract
Abstract Substituted thienylazo compounds having a cyclohexylaminoacylanilide coupling component are useful as dyes for polyester textile materials on which the compounds exhibit improved dyeability, fastness to light, resistance to sublimation and improved brightness.
Inventors
- 👤 Max A. Weaver
- 👤 James M. Straley
- 👤 William H. Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:03
CPC Classifications
C; C09; C09B; C09B31/00; C09B31/02; C09B31/04; C09B31/043; C09B29/00; C09B29/0025; C09B29/06; C09B29/08; C09B29/0805; C09B29/0807; C09B29/0809
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
A water-insoluble azo compound having the formula ##STR9## wherein R is a 2-thienyl radical; A is formyl; lower alkanoyl; lower alkanoyl substituted with halogen, cyano, lower alkoxy, hydroxy, lower alkylsulfonyl, phenyl, lower alkylphenyl, lower alkoxyphenyl or halophenyl; benzoyl, benzoyl substituted with lower alkyl, lower alkoxy or halogen, cyclohexylcarbonyl; lower alkoxycarbonyl; lower alkoxycarbonyl substituted with hydroxy or cyano; or furoyl; R 1 is hydrogen, lower alkyl, or lower alkoxy; R 2 is hydrogen, lower alkyl; or lower alkyl substituted lower alkoxy, with cyano, lower alkanoyloxy, or cyclohexyl; R 3 is lower alkyl; and n is 0, 1, 2 or 3.
Claim 2
Dependent Claim
99 words
A water-insoluble azo compound having the formula ##STR9## wherein R is a 2-thienyl radical; A is formyl; lower alkanoyl; lower alkanoyl substituted with halogen, cyano, lower alkoxy, hydroxy, lower alkylsulfonyl, phenyl, lower alkylphenyl, lower alkoxyphenyl or halophenyl; benzoyl, benzoyl substituted with lower alkyl, lower alkoxy or halogen, cyclohexylcarbonyl; lower alkoxycarbonyl; lower alkoxycarbonyl substituted with hydroxy or cyano; or furoyl; R 1 is hydrogen, lower alkyl, or lower alkoxy; R 2 is hydrogen, lower alkyl; or lower alkyl substituted lower alkoxy, with cyano, lower alkanoyloxy, or cyclohexyl; R 3 is lower alkyl; and n is 0, 1, 2 or 3.
Claim 3
Dependent Claim
24 words
A compound according to claim 1 wherein R is ##STR10## wherein R 12 is lower alkanoyl, benzoyl, lower alkylbenzoyl, lower alkoxybenzoyl, halobenzoyl or nitrobenzoyl.
Claim 4
Dependent Claim
16 words
A compound according to claim 2 wherein R 12 is lower alkanoyl, benzoyl, or substituted benzoyl.
Claim 5
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR11##
Claim 6
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR12##
Claim 7
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR13##
Claim 8
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR14##
Claim 9
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR15##
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) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |