US3721714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decomposition of carbonates to form aldehydes
Assignee: Union Oil Company of California
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Filing: 1968-12-23
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Granted: 1973-03-20
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Expires: 1988-12-23
Abstract
Abstract A PROCESS FOR THE PREPARATION OF ALDEHYDES AND ALCOHOLS COMPRISING CONTACTING A DICARBOHYDRYL CARBONATE WITH A CATALYST COMPRISING A COMPLEX OF A GROUP VIII NOBLE METAL AND A BIPHYLLIC LIGAND AT A TEMPERATURE BETWEEN 150* C. AND 250*C. AND AT A PRESSURE SUFFICIENT TO AMINTAIN LIQUID PHASE REACTION CONDITIONS. THE ALDEHYDE AND ALCOHOL PRODUCTS PRODUCED ARE USEFUL AS INTERMEDIATES FOR A VARIETY OF PRODUCTS INCLUDING PLASTICIZERS, ACIDS AND RESINS, ETC.
Inventors
- 👤 D Fenton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:22
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/51; C07C45/54; C07C29/00; C07C29/09; C07C29/095
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) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |