US3014059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of dialkoxy boranes
Assignee: Callery Chemical Co
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Filing: 1954-07-06
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Granted: 1961-12-19
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Expires: 1974-07-06
Abstract
No abstract record available.
Inventors
- 👤 Jack D Bush
- 👤 Richard A Carpenter
- 👤 William H Schechter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:40
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A METHOD OF PREPARING A DIALKOXY BORANE, HB(OR)2, WHERE R IS A LOWER ALKYL RADICAL WHICH COMPRISES REACTING A TRIALKYL BORATE, B(OR)3, WHERE R IS A LOWER ALKYL RADICAL, AND A HYDRIDE COMPOUND OF THE GROUP CONSISTING OF MHX AND M(BHN(OR)4-N)X, WHERE M IS SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METALS, R IS A LOWER ALKYL RADICAL, X IS THE VALENCE OF M, AND N IS AN INTEGER FROM 1 TO 4, IN A MOLAR PROPORTION OF TRIALKYL BORATE TO HYDRIDE OF NOT LESS THAN THE STOICHIOMETRIC AMOUNT REQUIRED TO PRODUCE DIALKOXYBORANE BY HEATING AT A TEMPERATURE OF 30* TO 270*C. AND CONTINUOUSLY REMOVING AND RECOVERING THE DIALKOXY BORANE AS IT IS FORMED BY SUBJECTING THE REACTION MIXTURE TO DISTILLATION.
Claim 2
Independent Claim
124 words
A METHOD OF PREPARING A DIALKOXY BORANE, HB(OR)2, WHERE R IS A LOWER ALKYL RADICAL WHICH COMPRISES REACTING A TRIALKYL BORATE, B(OR)3, WHERE R IS A LOWER ALKYL RADICAL, AND A HYDRIDE COMPOUND OF THE GROUP CONSISTING OF MHX AND M(BHN(OR)4-N)X, WHERE M IS SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METALS, R IS A LOWER ALKYL RADICAL, X IS THE VALENCE OF M, AND N IS AN INTEGER FROM 1 TO 4, IN A MOLAR PROPORTION OF TRIALKYL BORATE TO HYDRIDE OF NOT LESS THAN THE STOICHIOMETRIC AMOUNT REQUIRED TO PRODUCE DIALKOXYBORANE BY HEATING AT A TEMPERATURE OF 30* TO 270*C. AND CONTINUOUSLY REMOVING AND RECOVERING THE DIALKOXY BORANE AS IT IS FORMED BY SUBJECTING THE REACTION MIXTURE TO DISTILLATION.
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) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |