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US3278576A
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Method for reacting hydrogen cyanide with olefins
Assignee: EIDP Inc
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Filing: 1963-10-23
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Granted: 1966-10-11
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Expires: 1983-10-23
Abstract
No abstract record available.
Inventors
- 👤 Davis Darwin Darrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:32
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/08; C07C253/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A METHOD FOR THE PRODUCTION OF ORGANIC NITRILES WHICH COMPRISES CONTACTING A MIXTURE OF A LOWER ALIPHATIC OLEFIN AND HYDROGEN CYANIDE WITH A CATALYST CONSISTING OF FINELY DIVIDED METALLIC PALLADIUM ON A GAMMA ALUMINA CATALYST SUPPORT AT A TEMPERATURE IN THE RANGE BETWEEN 250*C. AND 400*C. AND THEREAFTER RECOVERING FROM THE REACTION PRODUCT AN ORGANIC NITRILE RESULTING FROM THE ADDITION OF THE SAID HYDROGEN CYANIDE TO THE SAID LOWER ALIPHATIC OLEFIN.
Claim 2
Independent Claim
71 words
A METHOD FOR THE PRODUCTION OF ORGANIC NITRILES WHICH COMPRISES CONTACTING A MIXTURE OF A LOWER ALIPHATIC OLEFIN AND HYDROGEN CYANIDE WITH A CATALYST CONSISTING OF FINELY DIVIDED METALLIC PALLADIUM ON A GAMMA ALUMINA CATALYST SUPPORT AT A TEMPERATURE IN THE RANGE BETWEEN 250*C. AND 400*C. AND THEREAFTER RECOVERING FROM THE REACTION PRODUCT AN ORGANIC NITRILE RESULTING FROM THE ADDITION OF THE SAID HYDROGEN CYANIDE TO THE SAID LOWER ALIPHATIC OLEFIN.
References Cited (Backward Citations)
US3062860A
Cited
US3057906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |