US3968119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vic-triazole compounds
Assignee: Bayer AG
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Filing: 1974-01-04
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Granted: 1976-07-06
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Expires: 1994-01-04
Abstract
Abstract Vic-triazole compounds of the formula ##SPC1## Wherein X and Y stand for O or NR, R 1 stands for a mononuclear aromatically carbocyclic or aromatically heterocyclic radical, R stands for hydrogen, a (possibly substituted alkyl, aralkyl, cycloalkyl, aryl or alkoxycarbonyl radical, and Wherein the aromatic and heterocyclic radicals may contain further non-chromophoric substituents with the exception of the nitro-group, and A may additionally be fused by a 5- or 6-membered carbocyclic ring, Are useful as optical brightening agents for organic materials.
Inventors
- 👤 Horst Harnisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:44
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/04; D; D06; D06L; D06L4/00; D06L4/60; D06L4/614; D06L4/636
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
Vic-triazole compound of the formula ##SPC32## wherein B is unsubstituted; substituted by a fused unsubstituted benzene ring; monosubstituted by fluoro, chloro, bromo, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy; or disubstituted by fluoro, chloro, or bromo; and D is unsubstituted or monosubstituted by C 1 -C 4 -alkyl, fluoro, chloro, bromo, cyano, carboxylic acid C 1 -C 4 -alkyl ester, or carboxylic acid amide.
Claim 2
Dependent Claim
68 words
Vic-triazole compound of the formula ##SPC32## wherein B is unsubstituted; substituted by a fused unsubstituted benzene ring; monosubstituted by fluoro, chloro, bromo, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy; or disubstituted by fluoro, chloro, or bromo; and D is unsubstituted or monosubstituted by C 1 -C 4 -alkyl, fluoro, chloro, bromo, cyano, carboxylic acid C 1 -C 4 -alkyl ester, or carboxylic acid amide.
References Cited (Backward Citations)
US3839333A
Cited
US3657266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |