Patent US5727969A successfully refreshed from Google Patents.
Patent US2653982A successfully refreshed from Google Patents.
US2653982A
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Catalytic alkylation of isoparaffins with olefins
Assignee: Sunoco Inc
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Filing: 1951-03-30
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Granted: 1953-09-29
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Expires: 1971-03-30
Abstract
No abstract record available.
Inventors
- 👤 Robert M Kennedy
- 👤 Conard K Donnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:05
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/60; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
METHOD OF PREPARING BRANCHED CHAING PARAFFINS WHICH COMPRISES REACTING AT A TEMPERATURE OF FROM -120* C. TO 150* C., AN ISOPARAFFIN AND AN OLEFIN IN THE PRESENCE OF A CATALYST COMPRISING AN ADMIXTURE OF BF3 AND AN ALKYL FLUORIDE HAVING AT LEAST TWO CARBON ATOMS PER MOLECULE, SAID ADMIXTURE BEING PREPARED IN THE PRESENCE OF SAID ISOPARAFFIN AND SAID OLEFIN, WHEREIN THE MOLE RATIO OF BF3 TO SAID ALKYL FLUORIDE IS FROM 1 TO 10 AND WHEREIN THE AMOUNT OF BF3 IS AT LEAST 7 MOLE PERCENT OF THE REACTION MIXTURE.
Claim 2
Dependent Claim
91 words
METHOD OF PREPARING BRANCHED CHAING PARAFFINS WHICH COMPRISES REACTING AT A TEMPERATURE OF FROM -120* C. TO 150* C., AN ISOPARAFFIN AND AN OLEFIN IN THE PRESENCE OF A CATALYST COMPRISING AN ADMIXTURE OF BF3 AND AN ALKYL FLUORIDE HAVING AT LEAST TWO CARBON ATOMS PER MOLECULE, SAID ADMIXTURE BEING PREPARED IN THE PRESENCE OF SAID ISOPARAFFIN AND SAID OLEFIN, WHEREIN THE MOLE RATIO OF BF3 TO SAID ALKYL FLUORIDE IS FROM 1 TO 10 AND WHEREIN THE AMOUNT OF BF3 IS AT LEAST 7 MOLE PERCENT OF 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) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |