Patent US3553110A successfully refreshed from Google Patents.
US3553110A
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US
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Perfume compositions containing unconjugated octanitriles
Assignee: International Flavors and Fragrances Inc
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Filing: 1967-02-02
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Granted: 1971-01-05
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Expires: 1987-02-02
Abstract
Abstract THIS DISCLOSURE DESCRIBES METHODS FOR THE PREPARATION AND ISOLATION OF A VARIETY OF 7-METHYL-2,6-OCTADIENENITRILES BY CONDENSATION OR CYANOACETIC ACID WITH 2-METHYLHEPT-2-ENE-6-ONE IN THE PRESENCE OF AN AMINE OR AN ACID ADDITION SALT OF AN AMINE AT A TEMPERATURE OF FROM ABOUT 40*C. TO 180*C. A MIXTURE OF NITRILES IS PRODUCED IN THE CONDENSATION REACTION. THE RELATIVE PROPORTION OF EACH NITRILE IN THE MIXTURE CAN BE CONTROLLED BY CONTROL OF THE ALKALINITY OF THE REACTION MEDIUM. THE COMPOUNDS AND MIXTURES ARE USEFUL AS OLFACTORY AGENTS.
Inventors
- 👤 Peter W D Mitchell
- 👤 Jack H Blumenthal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:58
CPC Classifications
C; C07; C07C; C07C255/00; C11; C11B; C11B9/00; C11B9/0007; C11B9/0023
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |