Patent US6078979A successfully refreshed from Google Patents.
Patent US3048126A successfully refreshed from Google Patents.
Patent US3015669A successfully refreshed from Google Patents.
US3015669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialkyl aluminum hydrides and their production
Assignee: ZIEGLER AG
•
Filing: 1955-06-21
•
Granted: 1962-01-02
•
Expires: 1975-06-21
Abstract
No abstract record available.
Inventors
- 👤 Ziegler Karl
- 👤 Gellert Hans-Georg
- 👤 Bonitz Eckard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:03
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/065
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
67 words
PROCESS FOR THE PRODUCTION OF DIALKYL ALUMINUM HYDRIDES WHICH COMPRISES HEATING A REACTANT SUBSTANTIALLY SOLEY CONSISTING OF AN ALUMINUM TRIALKYL, THE ALKYL COMPONENT OF WHICH HAS AT LEAST TWO CARBON ATOMS, TO A TEMPERATURE BETWEEN ABOUT 50 AND 200*C. AT WHICH THE ALUMINUM TRIALKYL IS THERMALLY DECOMPOSED SPLITTING OFF ONE MOLECULE OF AN OLEFIN, AND RECOVERING THE CONVERTED REACTANT COMPRISING A MAJOR PORTION OF DIALKYL ALUMINUM DYDRIDE.
Claim 2
Dependent Claim
67 words
PROCESS FOR THE PRODUCTION OF DIALKYL ALUMINUM HYDRIDES WHICH COMPRISES HEATING A REACTANT SUBSTANTIALLY SOLEY CONSISTING OF AN ALUMINUM TRIALKYL, THE ALKYL COMPONENT OF WHICH HAS AT LEAST TWO CARBON ATOMS, TO A TEMPERATURE BETWEEN ABOUT 50 AND 200*C. AT WHICH THE ALUMINUM TRIALKYL IS THERMALLY DECOMPOSED SPLITTING OFF ONE MOLECULE OF AN OLEFIN, AND RECOVERING THE CONVERTED REACTANT COMPRISING A MAJOR PORTION OF DIALKYL ALUMINUM DYDRIDE.
Claim 3
Dependent Claim
24 words
A DIALKYL ALUMINUM HYDRIDE OF THE GENERAL FORMULA HAIR2 IN WHICH R REPRESENTS A PRIMARY BRANCHED ALKYL RADICAL HAVING AT LEAST FOUR CARBON ATOMS.
Claim 4
Dependent Claim
24 words
A DIALKYL ALUMINUM HYDRIDE OF THE GENERAL FORMULA HAIR2 IN WHICH R REPRESENTS A PRIMARY BRANCHED ALKYL RADICAL HAVING AT LEAST FOUR CARBON ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |