US3732324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing oil-soluble sulfonate feedstock
Assignee: ConocoPhillips Co
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Filing: 1971-04-02
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Granted: 1973-05-08
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Expires: 1991-04-02
Abstract
Abstract AN OLEFINIC MATERIAL CONTAINING FROM ABOUT 20 TO ABOUT 36 CARBON TOMS IS CONTACTED WITH AN ARENE COMPOUND IN THE PRESENCE OF A CATALYST SYSTEM WHICH INCLUDES A COMPLEX OF ALUMINUM CHLORIDE AND NITROMETHANE TO THEREBY ALKYLATE THE ARENE COMPOUND. THE PRODUCT IS FRACTIONED TO YIELD AN ALKYLATE HAVING A BOILING POINT OF AT LEAST 200*C. AT 20 MM. HG PRESSURE, WHICH ALKYLATE IS USEFUL AS A FEEDSTOCK FOR PRODUCING OIL-SOLUBLE SULFONATES.
Inventors
- 👤 S Mcguire
- 👤 C Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:31
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/02; C07C15/107; B; B01; B01J; B01J31/00; B01J31/02; B01J31/0234; B01J31/0235; B01J31/26; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/20; C07C2/22; C07C2/54; C07C2/64; C07C2/66; C07C2/68; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/323; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126; C07C2531/00; C07C2531/02
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |