Patent US3217031A successfully refreshed from Google Patents.
US3217031A
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Preparation of pure 11, 12-bis-(acetoxy methyl) carborane
Assignee: ATK Launch Systems LLC
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Filing: 1961-10-30
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Granted: 1965-11-09
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Expires: 1981-10-30
Abstract
No abstract record available.
Inventors
- 👤 Marvin M Fein
- 👤 John E Paustian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:22
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/02; C06B47/10; C07; C07F; C07F5/00; C07F5/02; C07F5/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
THE METHOD OF MAKING HIGH PURITY 11, 12-BIS(ACETOXYMETHYL)CARBORANE WHICH COMPRISES HEATING A MIXTURE OF BIS-(ACETONITRILO)DECABORANE AND 1,4-DIACETOXY-2-BUTYNE TO FORM A REACTION PRODUCT CONTAINING 11,12-BIS-(ACETOXYMETHYL)CARBORANE, ADDING A LOWER ALKANOL TO SAID REACTION PRODUCT AND HEATING TO CONVERT TO LOWER ALKYL BORATE ANY BORANES OTHER THAN SAID CARBORANE PRESENT IN SAID MIXTURE, DISTILLING SAID ALKYL BORATE AND EXCESS ALKANOL FROM THE MIXTURE TO LEAVE A RESIDUE CONTAINING SAID CARBORANE, AND RECOVERING SAID CARBORANE FROM SAID RESIDUE.
Claim 2
Independent Claim
74 words
THE METHOD OF MAKING HIGH PURITY 11, 12-BIS(ACETOXYMETHYL)CARBORANE WHICH COMPRISES HEATING A MIXTURE OF BIS-(ACETONITRILO)DECABORANE AND 1,4-DIACETOXY-2-BUTYNE TO FORM A REACTION PRODUCT CONTAINING 11,12-BIS-(ACETOXYMETHYL)CARBORANE, ADDING A LOWER ALKANOL TO SAID REACTION PRODUCT AND HEATING TO CONVERT TO LOWER ALKYL BORATE ANY BORANES OTHER THAN SAID CARBORANE PRESENT IN SAID MIXTURE, DISTILLING SAID ALKYL BORATE AND EXCESS ALKANOL FROM THE MIXTURE TO LEAVE A RESIDUE CONTAINING SAID CARBORANE, AND RECOVERING SAID CARBORANE FROM SAID RESIDUE.
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |