US2853526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of trialkylboranes
Assignee: Olin Corp
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Filing: 1957-07-29
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Granted: 1958-09-23
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Expires: 1977-07-29
Abstract
No abstract record available.
Inventors
- 👤 Jr John C Perrine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:29
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A METHOD FOR THE PRODUCTION OF A TRIALKYLBORANE WHICH COMPRISES REACTING A TRIALKYLBOROXINE OF THE FORMULA R3B3O3 AND A COMPOUND OF THE CLASS R''AIXX'' AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 0*. TO ABOUT 150*C., R AND R'' BEING ALKYL RADICALS CONTAINING FROM 1 TO 4 CARBON X AND X'' BEING SELECTED FROM THE GROUP CONSISTING OF HALOGEN ATOMS AND ALKYL RADICALS CONTAINING FRO 1 TO 4 CARBON ATOMS, AND THE RATIO OF THE NUMBER OF ALKYL RADICALS INTRODUCED INTO THE REACTION ZONE IN THE R''AIXX'' TO THE NUMBER OF BORON ATOMS INTRODUCED INTO THE REACTION ZONE IN THE TRIALKYLBOROXINE BEING WITHIN THE RANGE FROM 0.5 TO 8.
Claim 2
Independent Claim
109 words
A METHOD FOR THE PRODUCTION OF A TRIALKYLBORANE WHICH COMPRISES REACTING A TRIALKYLBOROXINE OF THE FORMULA R3B3O3 AND A COMPOUND OF THE CLASS R''AIXX'' AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 0*. TO ABOUT 150*C., R AND R'' BEING ALKYL RADICALS CONTAINING FROM 1 TO 4 CARBON X AND X'' BEING SELECTED FROM THE GROUP CONSISTING OF HALOGEN ATOMS AND ALKYL RADICALS CONTAINING FRO 1 TO 4 CARBON ATOMS, AND THE RATIO OF THE NUMBER OF ALKYL RADICALS INTRODUCED INTO THE REACTION ZONE IN THE R''AIXX'' TO THE NUMBER OF BORON ATOMS INTRODUCED INTO THE REACTION ZONE IN THE TRIALKYLBOROXINE BEING WITHIN THE RANGE FROM 0.5 TO 8.
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) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |