US2539668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of a 1-fluoro-3, 3-dimethylalkane by reacting ethylene, a tertiary alkanol and hydrogen fluoride
Assignee: Universal Oil Products Co
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Filing: 1948-09-29
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Granted: 1951-01-30
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Expires: 1968-09-29
Abstract
No abstract record available.
Inventors
- 👤 Carl B Linn
- 👤 Schmerling Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:17
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26; C07C17/263
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
40 words
A PROCESS WHICH COMPRISES REACTING ETHYLENE, A TERTIARY ALKANOL, AND HYDROGEN FLUORIDE AT A TEMPERATURE OF FROM ABOUT -50* C. TO ABOUT 100* C. TO FORM A 1-FLUORO-3,3-DIALKYLALKANE HAVING TWO CARBON ATOMS MORE PER MOLECULE THAN THE TERTIARY ALKANOL CHARGED.
Claim 2
Dependent Claim
40 words
A PROCESS WHICH COMPRISES REACTING ETHYLENE, A TERTIARY ALKANOL, AND HYDROGEN FLUORIDE AT A TEMPERATURE OF FROM ABOUT -50* C. TO ABOUT 100* C. TO FORM A 1-FLUORO-3,3-DIALKYLALKANE HAVING TWO CARBON ATOMS MORE PER MOLECULE THAN THE TERTIARY ALKANOL CHARGED.
Claim 3
Dependent Claim
38 words
A PROCESS FOR PRODUCING A 1-FLUORO-3,3-DIALKYLALKANE AND A HYDROCARBON ALKYLATE WHICH COMPRISES REACTING A MIXTURE OF ETHYLENE, A TERTIARY ALKANOL, AND AN ISOPARAFFIN WITH HYDROGEN FLUORIDE AT A TEMPERATURE OF FROM ABOUT -50* C. TO ABOUT 100* C.
Claim 4
Dependent Claim
38 words
A PROCESS FOR PRODUCING A 1-FLUORO-3,3-DIALKYLALKANE AND A HYDROCARBON ALKYLATE WHICH COMPRISES REACTING A MIXTURE OF ETHYLENE, A TERTIARY ALKANOL, AND AN ISOPARAFFIN WITH HYDROGEN FLUORIDE AT A TEMPERATURE OF FROM ABOUT -50* C. TO ABOUT 100* C.
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) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |