US4593143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxyalkoxy norbornyl ethers
Assignee: International Flavors and Fragrances Inc
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Filing: 1984-08-31
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Granted: 1986-06-03
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Expires: 2004-08-31
Abstract
Abstract Described are the hydroxyalkoxy norbornyl ethers or mixtures of same having the structure: ##STR1## wherein one of R 1 or R 2 is methyl and the other of R 1 or R 2 is hydrogen and wherein one of the dashed lines represents a carbon-carbon bond and the other of the dashed lines represents no bond as well as methods for augmenting or enhancing the aroma of consumable materials including perfumes, colognes and perfumed articles by adding thereto an aroma augmenting or enhancing quantity of at least one of said hydroxyalkoxy norbornyl ethers.
Inventors
- 👤 Futoshi Fujioka
- 👤 Richard M. Boden
- 👤 William L. Schreiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:02
CPC Classifications
C; C11; C11B; C11B9/00; C11B9/0042; C11B9/0046; A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/30; A24B15/34; A24B15/345; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/14; C07C43/178; C07C43/18; C07C43/196; C07C43/20; C07C43/23; C07C45/00; C07C45/49; C07C47/00; C07C47/02; C07C47/198; C07C47/20; C07C47/277
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A mixture of compounds having the structures: ##STR54## produced according to the process of reacting ethylidene norbornene having the structure: ##STR55## with 1,3-dihydroxy butane having the structure: ##STR56## in the presence of a mineral acid catalyst or a Lewis acid catalyst at a temperature in the range of from about 25° C. up to about 120° C., the mole ratio of acid catalyst to ethylidene norbornene varying from about 1:99 up to about 1:10; the mole ratio of ethylidene norbornene:1,3-butanediol varying from about 1:1 up to about 1:2 and then recovering said mixture by means of fractional distillation.
Claim 2
Dependent Claim
98 words
A mixture of compounds having the structures: ##STR54## produced according to the process of reacting ethylidene norbornene having the structure: ##STR55## with 1,3-dihydroxy butane having the structure: ##STR56## in the presence of a mineral acid catalyst or a Lewis acid catalyst at a temperature in the range of from about 25° C. up to about 120° C., the mole ratio of acid catalyst to ethylidene norbornene varying from about 1:99 up to about 1:10; the mole ratio of ethylidene norbornene:1,3-butanediol varying from about 1:1 up to about 1:2 and then recovering said mixture by means of fractional distillation.
References Cited (Backward Citations)
US4393247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |