US4033993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cycloalkyl carbonates
Assignee: Henkel AG and Co KGaA
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Filing: 1976-04-14
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Granted: 1977-07-05
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Expires: 1996-04-14
Abstract
Abstract Carbonic acid esters of the formula ##STR1## wherein R 1 is a member having from 8 to 12 carbon atoms selected from the group consisting of alkylcyclohexyl, alkenylcyclohexyl, alkynylcyclohexyl and cycloalkyl, and R 2 is a member selected from the group consisting of alkyl having from 1 to 5 carbon atoms, alkenyl having from 2 to 5 carbon atoms and alkynyl having from 2 to 5 carbon atoms, which compounds have pleasing and persistent scents, as well as processes for producing them and perfume compositions containing them.
Inventors
- 👤 Klaus Bruns
- 👤 Peter Meins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:36
CPC Classifications
C; C11; C11B; C11B9/00; C11B9/0026
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
57 words
A carbonic acid ester of the formula ##STR7## wherein R 1 is cycloalkyl having from 8 to 12 carbon atoms, and R 2 is a member selected from the group consisting of alkyl having from 1 to 5 carbon atoms, alkenyl having from 2 to 5 carbon atoms and alkynyl having from 2 to 5 carbon atoms.
Claim 2
Dependent Claim
57 words
A carbonic acid ester of the formula ##STR7## wherein R 1 is cycloalkyl having from 8 to 12 carbon atoms, and R 2 is a member selected from the group consisting of alkyl having from 1 to 5 carbon atoms, alkenyl having from 2 to 5 carbon atoms and alkynyl having from 2 to 5 carbon atoms.
Claim 3
Dependent Claim
22 words
The carbonic acid ester of claim 1 wherein R 1 is a member selected from the group consisting of cyclooctyl and cyclododecyl.
Claim 4
Dependent Claim
22 words
The carbonic acid ester of claim 1 wherein R 2 is a member selected from the group consisting of methyl and ethyl.
Claim 5
Dependent Claim
17 words
The cabonic acid ester of claim 1 wherein R 1 is methyl and R 2 is cyclooctyl.
Claim 6
Dependent Claim
17 words
The carbonic acid ester of claim 1 wherein R 1 is ethyl and R 2 is cyclooctyl.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |