US2880242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of trisubstituted boranes
Assignee: Olin Corp
•
Filing: 1956-05-09
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Granted: 1959-03-31
•
Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 George F Hennion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:56
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD FOR THE MANUFACTURE OF BORANES OF THE FORMULA R3B WHICH COMPRISES INTRODUCING AN ETHER SOLUTION OF BOTH A COMPOUND OF THE FORMULA BX3 AND A COMPOUND OF THE FORMULA RY INTO A MIXTURE OF ALKALI METAL AND AN ETHER MAINTAINED AT A TEMPERATURE OF ABOUT 20*C. TO 60*C., R BEING A HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL RADICALS, ALICYCLIC RADICALS HAVING FROM 5 TO 6 CARBON ATOMS, AND AROMATIC RADICALS HAVING FROM 6 TO 11 CARBON ATOMS, AND X AND Y BEING HALOGEN ATOMS.
Claim 2
Independent Claim
90 words
A METHOD FOR THE MANUFACTURE OF BORANES OF THE FORMULA R3B WHICH COMPRISES INTRODUCING AN ETHER SOLUTION OF BOTH A COMPOUND OF THE FORMULA BX3 AND A COMPOUND OF THE FORMULA RY INTO A MIXTURE OF ALKALI METAL AND AN ETHER MAINTAINED AT A TEMPERATURE OF ABOUT 20*C. TO 60*C., R BEING A HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL RADICALS, ALICYCLIC RADICALS HAVING FROM 5 TO 6 CARBON ATOMS, AND AROMATIC RADICALS HAVING FROM 6 TO 11 CARBON ATOMS, AND X AND Y BEING HALOGEN ATOMS.
References Cited (Backward Citations)
US2446008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |