US2863894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of aluminium alkyls
Assignee: Imperial Chemical Industries Ltd
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Filing: 1955-01-10
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Granted: 1958-12-09
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Expires: 1975-01-10
Abstract
No abstract record available.
Inventors
- 👤 Smith Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:14
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/064; C07F5/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS FOR THE PRODUCITON OF AN ALUMINUM ALKYL WHICH COMPRISES REACTING ALUMINUM WITH AT LEAST ONE PRIMARY ALKYL HALIDE SELECTED FROM THE GROUP CONSISTING OF METHYL CHLORIDE, METHYL BROMIDE, METHYL IODIDE, ETHYL CHLORIDE, ETHYL BROMIDE, ETHYL IODIDE, PROPYL BROMIDE, PROPYL IODIDE, N-BUTYL BROMIDE, N-BUTYL IODIDE, AND ISOBUTYL IODIDE, IN THE PRESENCE OF AN INERT AROMATIC-FREE SOLVENT TO FORM A SOLUTION OF SEQQUIHALIDE DISSOLVED IN SAID INERT SOLVENT AND THEREAFTER REACTING SAID SEQUIHALIDE WITH AN ALKALI METAL, WITHOUT ISOLATING SAID SESQUIHALIDE FROM SAID SOLUTION, TO FORM SAID ALUMINUM ALKYL.
Claim 2
Dependent Claim
89 words
A PROCESS FOR THE PRODUCITON OF AN ALUMINUM ALKYL WHICH COMPRISES REACTING ALUMINUM WITH AT LEAST ONE PRIMARY ALKYL HALIDE SELECTED FROM THE GROUP CONSISTING OF METHYL CHLORIDE, METHYL BROMIDE, METHYL IODIDE, ETHYL CHLORIDE, ETHYL BROMIDE, ETHYL IODIDE, PROPYL BROMIDE, PROPYL IODIDE, N-BUTYL BROMIDE, N-BUTYL IODIDE, AND ISOBUTYL IODIDE, IN THE PRESENCE OF AN INERT AROMATIC-FREE SOLVENT TO FORM A SOLUTION OF SEQQUIHALIDE DISSOLVED IN SAID INERT SOLVENT AND THEREAFTER REACTING SAID SEQUIHALIDE WITH AN ALKALI METAL, WITHOUT ISOLATING SAID SESQUIHALIDE FROM SAID SOLUTION, TO FORM SAID ALUMINUM ALKYL.
References Cited (Backward Citations)
US2744127A
Cited
US2691668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |