US3200157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buls etal alkylation process
Assignee: —
•
Filing: —
•
Granted: 1965-08-10
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Expires: 1982-08-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:39
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/16; C07C37/14; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C39/00; C07C39/02; C07C39/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
THE PROCESS FOR SELECTIVELY ALKYLATING A PHENOL WHICH COMPRISES MIXING A PHENOL HAVING A REPLACEABLE HYDROGEN ATOM ON THE RING CARBON ATOM PARA TO THE HYDROXYL GROUP QNE ON AT LEAST ONE OF THE RING CARBON ATOMS ORTHO TO THE HYDROXYL GROUP, FROM ABOUT 2 TO ABOUT 5 MOLES OF OLEFIN HAVING UP TO 10 CARBON ATOMS PER MOLE OF PHENOL; FROM ABOUT 0.001 MOLE TO ABOUT 0.20 MODE OF ALUMINUM TRIHALIDE PER MOLE OF PHENOL, AND FROM ABOUT 0.0006 TO ABOUT 0.01 MOLE OF WATER PER MOLE OF PHENOL; HEATING THE RESULTING MIXTURE COMPRISING ESSENTIALLY SAID PHENOL, SAID OLEFIN, SAID ALUMINUM TRIHALIDE AND SAID WATER AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 200*C. AND A PRESSURE FROM ABOUT 100 P.S.I.G. TO ABOUT 5000 P.S.I.G., AND SEPARATING ORTHO-ALKYLATED PHENOL FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
135 words
THE PROCESS FOR SELECTIVELY ALKYLATING A PHENOL WHICH COMPRISES MIXING A PHENOL HAVING A REPLACEABLE HYDROGEN ATOM ON THE RING CARBON ATOM PARA TO THE HYDROXYL GROUP QNE ON AT LEAST ONE OF THE RING CARBON ATOMS ORTHO TO THE HYDROXYL GROUP, FROM ABOUT 2 TO ABOUT 5 MOLES OF OLEFIN HAVING UP TO 10 CARBON ATOMS PER MOLE OF PHENOL; FROM ABOUT 0.001 MOLE TO ABOUT 0.20 MODE OF ALUMINUM TRIHALIDE PER MOLE OF PHENOL, AND FROM ABOUT 0.0006 TO ABOUT 0.01 MOLE OF WATER PER MOLE OF PHENOL; HEATING THE RESULTING MIXTURE COMPRISING ESSENTIALLY SAID PHENOL, SAID OLEFIN, SAID ALUMINUM TRIHALIDE AND SAID WATER AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 200*C. AND A PRESSURE FROM ABOUT 100 P.S.I.G. TO ABOUT 5000 P.S.I.G., AND SEPARATING ORTHO-ALKYLATED PHENOL 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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |