US2992072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of diborane
Assignee: Callery Chemical Co
•
Filing: 1958-10-24
•
Granted: 1961-07-11
•
Expires: 1978-10-24
Abstract
No abstract record available.
Inventors
- 👤 George F Huff
- 👤 William H Schechter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:55
CPC Classifications
C; C01; C01B; C01B6/00; C01B6/06; C01B6/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A METHOD OF PREPARING DIBORANE WHICH COMPRISES REACTING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRI-LOWERALKYL BORATES, B(OR)3, AND TRILOWERALKOXY BOROXINES, B3O3(OR)3, WHERE R IS A LOWER ALKYL RADICAL, WITH AT LEAST ONE HYDRIDE COMPOUND SELECTED FROM THE GROUP CONSISTING OF MH AND MBHN(OR)4-N, WHERE M IS AN ALKALI METAL, R IS A LOWER ALKYL RADICAL AND N IS AN INTEGER FROM 1 TO 4, IN A VERTICAL REACTION ZONE, USING A MOLECULAR PROPORTION OF SAID REACTANTS WHEREBY A REATION MIXTURE CONTAINING HB(OR)2, WHERE R IS A LOWER ALKYL RADICAL, IS PRODUCED, SUBJECTING SAID MIXTURE TO A SUPERATMOSPHERIC PRESSURE AND TOTAL REFLUX FOR ALL COMPONENTS PRESENT OTHER THAN DIBORANE, AND CONTINUOUSLY REMOVING THE DIBORANE THUS FORMED FROM THE TOP OF SAID REACTION ZONE.
Claim 2
Independent Claim
126 words
A METHOD OF PREPARING DIBORANE WHICH COMPRISES REACTING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRI-LOWERALKYL BORATES, B(OR)3, AND TRILOWERALKOXY BOROXINES, B3O3(OR)3, WHERE R IS A LOWER ALKYL RADICAL, WITH AT LEAST ONE HYDRIDE COMPOUND SELECTED FROM THE GROUP CONSISTING OF MH AND MBHN(OR)4-N, WHERE M IS AN ALKALI METAL, R IS A LOWER ALKYL RADICAL AND N IS AN INTEGER FROM 1 TO 4, IN A VERTICAL REACTION ZONE, USING A MOLECULAR PROPORTION OF SAID REACTANTS WHEREBY A REATION MIXTURE CONTAINING HB(OR)2, WHERE R IS A LOWER ALKYL RADICAL, IS PRODUCED, SUBJECTING SAID MIXTURE TO A SUPERATMOSPHERIC PRESSURE AND TOTAL REFLUX FOR ALL COMPONENTS PRESENT OTHER THAN DIBORANE, AND CONTINUOUSLY REMOVING THE DIBORANE THUS FORMED FROM THE TOP OF SAID REACTION ZONE.
References Cited (Backward Citations)
US2494968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |