US3994873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azo dyestuffs containing sulfonylamino-sulfonyl groups
Assignee: Bayer AG
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Filing: 1975-05-08
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Granted: 1976-11-30
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Expires: 1995-05-08
Abstract
Abstract Dyestuffs of the formula WHEREIN R1 denotes H, NO2, CN, R8R8 CON ANGLE , -SO2N ANGLE R9R9 or COOR10, R2 denotes H, alkyl, alkoxy, aryl, halogen or NO2, R3 denotes H, halogen, alkyl, alkoxy, aryl or R8 -SO2N ANGLE R9 R4 denotes H, alkyl or -SO2-aryl, R5 denotes H, halogen, alkyl, aryl or alkoxy, R6 denotes H or alkyl, R7 denotes alkyl, aryl or dialkylamino and R8 and R9 denote H, alkyl, aryl, aralkyl or hetaryl or can, together with the N atom, form the radical of a heterocyclic structure, R10 denotes alkyl and N DENOTES 1 OR 2, THE OR4 radical is in the ortho-position or paraposition relative to the azo group and THE -SO2-NH-SO2-R7- radical is present in place of R1 in the ring A or in place of R3 in the ring B1 are suitable for dyeing and printing natural and synthetic fibrous materials containing amide groups.
Inventors
- 👤 Richard Sommer
- 👤 Herbert Hugl
- 👤 Gerhard Wolfrum
- 👤 Karl-Heinz Schundehutte
- 👤 Kersten Trautner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:17
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/10; C09B51/00; D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
442 words
Azo dyestuff which in the form of the free acid corresponds to the formula ##SPC26## wherein R 1 is H; No 2 ; CN; ##EQU3## or COOR 10 ; R 2 is H; C 1 -C 4 -alkyl; C 1 -C 4 -alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; C 1 -C 4 -alkoxy; phenyl; phenyl substituted by Cl, Br, F, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy; Cl; Br; F; or NO 2 ; R 3 is H; Cl; Br; F; C 1 -C 4 -alkyl; C 1 -C 4 -alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; C 1 -C 4 -alkoxy; phenyl; phenyl substituted by Cl, Br, F, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy; or ##EQU4## R 4 is H; C 1 -C 5 -alkyl; C 1 -C 5 -alkyl substituted by OH, phenyl, C 1 -C 4 -alkoxy, C 2 -C 4 -alkenylcarbonyloxy or C 1 -C 4 -alkenylcarbonyloxy; SO 2 -phenyl; SO 2 -naphthyl; or SO 2 -phenyl and SO 2 -naphthyl substituted by C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, Cl, Br, F, CN or NO 2 ; R 5 is H; Cl; Br; F; C 1 -C 4 -alkyl; C 1 -C 4 -alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; C 1 -C 4 -alkoxy; phenyl; or phenyl substituted by Cl, Br, F, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy; R 6 is H; C 1 -C 4 -alkyl; C 1 -C 4 -alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; R 7 is C 1 -C 4 -alkyl; phenyl; naphthyl; phenyl or naphthyl substituted by C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, Cl, Br, F, CN or NO 2 ; diethylamino; dimethylamino; or dibutylamino; R 8 and R 9 are H; alkyl; alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; phenyl; phenyl substituted by C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, Cl, Br, F, CN or NO 2 ; benzyl; or phenethyl; R 10 is C 1 -C 4 -alkyl or C 1 -C 4 -alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; n is 1 or 2; and the OR 4 radical is in the ortho- or para-position relative to the azo group and the SO 2 -NH-SO 2 -R 7 radical is present in place or R 1 or R 3 .
Claim 2
Dependent Claim
442 words
Azo dyestuff which in the form of the free acid corresponds to the formula ##SPC26## wherein R 1 is H; No 2 ; CN; ##EQU3## or COOR 10 ; R 2 is H; C 1 -C 4 -alkyl; C 1 -C 4 -alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; C 1 -C 4 -alkoxy; phenyl; phenyl substituted by Cl, Br, F, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy; Cl; Br; F; or NO 2 ; R 3 is H; Cl; Br; F; C 1 -C 4 -alkyl; C 1 -C 4 -alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; C 1 -C 4 -alkoxy; phenyl; phenyl substituted by Cl, Br, F, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy; or ##EQU4## R 4 is H; C 1 -C 5 -alkyl; C 1 -C 5 -alkyl substituted by OH, phenyl, C 1 -C 4 -alkoxy, C 2 -C 4 -alkenylcarbonyloxy or C 1 -C 4 -alkenylcarbonyloxy; SO 2 -phenyl; SO 2 -naphthyl; or SO 2 -phenyl and SO 2 -naphthyl substituted by C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, Cl, Br, F, CN or NO 2 ; R 5 is H; Cl; Br; F; C 1 -C 4 -alkyl; C 1 -C 4 -alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; C 1 -C 4 -alkoxy; phenyl; or phenyl substituted by Cl, Br, F, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy; R 6 is H; C 1 -C 4 -alkyl; C 1 -C 4 -alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; R 7 is C 1 -C 4 -alkyl; phenyl; naphthyl; phenyl or naphthyl substituted by C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, Cl, Br, F, CN or NO 2 ; diethylamino; dimethylamino; or dibutylamino; R 8 and R 9 are H; alkyl; alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; phenyl; phenyl substituted by C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, Cl, Br, F, CN or NO 2 ; benzyl; or phenethyl; R 10 is C 1 -C 4 -alkyl or C 1 -C 4 -alkyl substituted by OH, CN, Cl, Br, F or C 1 -C 4 -alkoxy; n is 1 or 2; and the OR 4 radical is in the ortho- or para-position relative to the azo group and the SO 2 -NH-SO 2 -R 7 radical is present in place or R 1 or R 3 .
Claim 3
Dependent Claim
84 words
Azo dyestuff of Claim 1 which in the form of the free acid corresponds to the formula ##SPC27## wherein R 1 ' is H, NO 2 or ##STR157## R 4 ' is H, methyl, ethyl, propyl, butyl, 2-hydroxyethyl, 2-hydroxypropyl, 2-hydroxybutyl, 1-methyl-2-hydroxypropyl, 2-hydroxy-2-phenylethyl or 2,3-dihydroxypropyl; R 5 ' is H, C 1 -C 4 -alkyl or phenyl: R 7 ' has the meaning indicated in claim 1; and R 8 ' and R 9 ' are H, C 1 -C 4 -alkyl, phenyl or benzyl.
Claim 4
Dependent Claim
66 words
Azo dyestuff of claim 1 which in form of the free acid corresponds to the formula ##SPC28## wherein R 3 ' is H, Cl, Br, F, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or ##STR158## n is 1 or 2; and R 4 ', R 5 ', R 7 ' R 8 ' and R 9' have the meaning indicated in claim 2.
Claim 5
Dependent Claim
73 words
Azo dyestuffs according to claim 1, which in the form of the free acid correspond to the formula ##SPC29## wherein R 4 " represents H, methyl, ethyl, propyl, 2-hydroxyethyl, 2-hydroxypropyl or 2-hydroxybutyl, R 5 " represents H, methyl, ethyl, tert.-butyl or phenyl and R 7 " represents methyl, ethyl, propyl, butyl, phenyl or o- or p-tolyl and the --OR 4 " radical is in the o-position or p-position relative to the azo bridge.
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) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |