Patent US2668865A successfully refreshed from Google Patents.
US2668865A
Expired / Lapsed
US
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Alkylation of isoparaffins with naphthenes
Assignee: Sunoco Inc
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Filing: 1950-02-28
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Granted: 1954-02-09
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Expires: 1970-02-28
Abstract
No abstract record available.
Inventors
- 👤 Schneider Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:47
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
PROCESS FOR THE PREPARATION OF A POLYALKYL CYCLOHEXANE WHICH COMPRISES REACTING IN LIQUID PHASE AN ALKYL SUBSTITUTED CYCLOPENTANE WITH AN ISOPARAFFIN HAVING FROM 4 TO 6 CARBON ATOMS AND AT LEAST ONE TERTIARY HYDROGEN ATOM PER MOLECULE BY BRINING TOGEHER, IN CONTACT WITH AN ADMIXTURE OF SAID CYCLOPENTANE AND SAID ISOPARAFFIN, HYDROGEN FLUORIDE AND AN OLEFIN, WHEREBY REACTION BETWEEN SAID CYCLOPENTANE AND SAID ISOPARAFFIN OCCURS TO FORM A POLYALKYL CYCLOHEXANE HAVING THE SAME NUMBER OF CARBON ATOMS AS THE SUM OF THE CARBON ATOMS OF SAID CYCLOPENTANE AND SAID ISOPARAFFIN AND WHEREBY SAID OLEFIN IS CONVERTED TO A PARAFFIN HAVING THE SAME NUMBER OF CARBON ATOMS AS SAID OLEFIN, AND SEPARATING SAID POLYALKYL CYCLOHEXANE FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
118 words
PROCESS FOR THE PREPARATION OF A POLYALKYL CYCLOHEXANE WHICH COMPRISES REACTING IN LIQUID PHASE AN ALKYL SUBSTITUTED CYCLOPENTANE WITH AN ISOPARAFFIN HAVING FROM 4 TO 6 CARBON ATOMS AND AT LEAST ONE TERTIARY HYDROGEN ATOM PER MOLECULE BY BRINING TOGEHER, IN CONTACT WITH AN ADMIXTURE OF SAID CYCLOPENTANE AND SAID ISOPARAFFIN, HYDROGEN FLUORIDE AND AN OLEFIN, WHEREBY REACTION BETWEEN SAID CYCLOPENTANE AND SAID ISOPARAFFIN OCCURS TO FORM A POLYALKYL CYCLOHEXANE HAVING THE SAME NUMBER OF CARBON ATOMS AS THE SUM OF THE CARBON ATOMS OF SAID CYCLOPENTANE AND SAID ISOPARAFFIN AND WHEREBY SAID OLEFIN IS CONVERTED TO A PARAFFIN HAVING THE SAME NUMBER OF CARBON ATOMS AS SAID OLEFIN, AND SEPARATING SAID POLYALKYL CYCLOHEXANE FROM THE REACTION MIXTURE.
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) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |