US3595852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoazo dyestuffs containing a thiazolylmercaptoalkylamino group
Assignee: Sandoz AG
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Filing: 1968-07-01
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Granted: 1971-07-27
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Expires: 1988-07-01
Abstract
Abstract DISPERSE DYES OF THE MONAZO SERIES WITH A HETEROCYCLIC DIAZOLO COMPONENT AND A THIAZOLYL-MECAPTO-ALKYLAMINO SUBSITITUTED COUPLING COMPONENT OF THE BENZENE SERIES, HAVING OUTSTANDING FASTNESS PROPERTIES, ESPECIALLY EXCELLENT THERMOFIXATION FASTNESS. THE DYES BUILD UP EXCELLENTLY FROM AQUEOUS DISPERSIONS ON TEXTILES OF FULLY SNYTHETIC OR SEMISYNTHETIC HYDROPHOBIC ORGANIC SUBSTANCES OF HIGH MOLECULAR WEIGHT. THEY ARE USEFUL FOR DYEING FIBERS OF LINEAR AROMATIC POLYESTER, CELLULOSE ACETATE, CELLULOSE TRIACETATE, SYNTHETIC POLYAMIDE, POLYOLEFINS, ACRYLONITRILE COPOLYMERS AND POLYVINYL COMPOUNDS.
Inventors
- 👤 Rasso Hahn
- 👤 Curt Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:08
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/002; C09B62/006; C09B62/008; C09B62/0081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |