US3268569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing aluminum trialkyls
Assignee: Stamicarbon BV
•
Filing: 1960-10-11
•
Granted: 1966-08-23
•
Expires: 1980-10-11
Abstract
No abstract record available.
Inventors
- 👤 Harm N Mulder
- 👤 Jacobus P Schuhmacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:36
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
PROCESS FOR PREPARING ALUMINUM TRIALKYL, WHICH COMPRISES PASSING A LIQUID CONTAINING A DIALKYL ALUMINUM HYDRIDE DOWNWARDLY THROUGH AN ELONGATED REACTOR CONTAINING CONTACT DEVICES, INTRODUCING A GASEOUS OLEFIN INTO THE REACTOR BELOW THE LEVEL AT WHICH SAID LIQUID IS INTRODUCED SO THAT SAID LIQUID AND SAID GASEOUS OLEFIN ARE IN CONTACT, VENTING A GASEOUS PHASE FROM THE UPPER PORTION OF SAID REACTOR, PASSING THE REACTION PRODUCT FROM THE LOWER PORTION OF THE REACTION INTO A SEPARATION ZONE, AND SEPARATING ANY GASEOUS CONSTITUENTS FROM THE LIQUID PHASE OF THE REACTION PRODUCT CONTAINING THE PRODUCED ALUMINUM TRIALKYL.
Claim 2
Dependent Claim
94 words
PROCESS FOR PREPARING ALUMINUM TRIALKYL, WHICH COMPRISES PASSING A LIQUID CONTAINING A DIALKYL ALUMINUM HYDRIDE DOWNWARDLY THROUGH AN ELONGATED REACTOR CONTAINING CONTACT DEVICES, INTRODUCING A GASEOUS OLEFIN INTO THE REACTOR BELOW THE LEVEL AT WHICH SAID LIQUID IS INTRODUCED SO THAT SAID LIQUID AND SAID GASEOUS OLEFIN ARE IN CONTACT, VENTING A GASEOUS PHASE FROM THE UPPER PORTION OF SAID REACTOR, PASSING THE REACTION PRODUCT FROM THE LOWER PORTION OF THE REACTION INTO A SEPARATION ZONE, AND SEPARATING ANY GASEOUS CONSTITUENTS FROM THE LIQUID PHASE OF THE REACTION PRODUCT CONTAINING THE PRODUCED ALUMINUM TRIALKYL.
References Cited (Backward Citations)
US2826598A
Cited
US3013042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |