US4035380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain benzazol-2-ylthio compounds
Assignee: Novartis AG
•
Filing: 1970-07-14
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Granted: 1977-07-12
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Expires: 1990-07-14
Abstract
Abstract Water-insoluble styryl dyestuffs of the formula ##STR1## in which X represents a cyano, carbo-lower alkoxy or phenylsulphone group, Y 1 and Y 2 each represents a hydrogen atom, an lower alkyl or lower alkoxy or phenoxy group, R represents a lower alkyl, phenyl-lower-alkyl, cyano-lower-alkyl, lower alkoxyalkyl or acyloxyalkyl group or a radical of the formula --A--S--B, and A represent a lower alkylene group that may be substituted by a lower alkanoyloxy or a benzoyloxy group and B represents a heterocyclic radical.
Inventors
- 👤 Richard Peter
- 👤 Walter Jenny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:08
CPC Classifications
C; C07; C07C; C07C255/00; C07D; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/28; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/74; C09; C09B; C09B23/00; C09B23/14; C09B23/143
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
130 words
A water insoluble styryl dyestuff of the formula ##STR32## in which X represents a cyano, carbalkoxy containing up to 3 carbon atoms or phenylsulphone group, Y 1 and Y 2 each represents a hydrogen atom, methyl or methoxy group, R represents C 1 to C 4 alkyl, phenylalkyl containing up to 8 carbon atoms, cyanoethyl, alkoxyalkyl containing up to 6 carbon atoms, or fatty acid acyloxyalkyl group up to 3 carbon atoms, or a radical of the formula --A--S--B, and A represents alkylene group containing up to 3 carbon atoms that may be substituted by a fatty acid acyloxy containing up to 2 carbon atoms or a benzoyloxy group and B represents either a benzthiazolyl radical which may be substituted by chlorine, methyl, methoxy, ethoxy or a benzoxazolyl-2- or benzoimidazolyl-2.
Claim 2
Dependent Claim
130 words
A water insoluble styryl dyestuff of the formula ##STR32## in which X represents a cyano, carbalkoxy containing up to 3 carbon atoms or phenylsulphone group, Y 1 and Y 2 each represents a hydrogen atom, methyl or methoxy group, R represents C 1 to C 4 alkyl, phenylalkyl containing up to 8 carbon atoms, cyanoethyl, alkoxyalkyl containing up to 6 carbon atoms, or fatty acid acyloxyalkyl group up to 3 carbon atoms, or a radical of the formula --A--S--B, and A represents alkylene group containing up to 3 carbon atoms that may be substituted by a fatty acid acyloxy containing up to 2 carbon atoms or a benzoyloxy group and B represents either a benzthiazolyl radical which may be substituted by chlorine, methyl, methoxy, ethoxy or a benzoxazolyl-2- or benzoimidazolyl-2.
Claim 3
Dependent Claim
80 words
A dyestuff according to claim 1, of the formula ##STR33## in which X represents a cyano, carbalkoxy containing up to 3 carbon atoms or phenylsulphone group, B' represents benzthiazolyl, which may be substituted by chlorine, methyl, methoxy or ethoxy, X 1 is a direct bond or a group of the formula ##STR34## in which R 2 is methyl or phenyl and R 1 is C 1 -C 4 -alkyl or a radical of the formula --CH 2 CH 2 --S--B'.
Claim 4
Dependent Claim
10 words
The dyestuff claimed in claim 1 of the formula ##STR35##
Claim 5
Dependent Claim
1 words
##STR36##
Claim 6
Dependent Claim
1 words
##STR36##
References Cited (Backward Citations)
US2120401A
Cited
US3635957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |