US2789143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of alkyl phenols
Assignee: Texaco Inc
•
Filing: 1954-08-17
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Granted: 1957-04-16
•
Expires: 1974-08-17
Abstract
No abstract record available.
Inventors
- 👤 George B Arnold
- 👤 Herman D Kluge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:09
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/14; C07C37/68; C07C37/70; C07C37/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS FOR THE MANUFACTIRE OF ALKYLATED PHENOL WHICH COMPRISES SUBJECTING A MIXTURE CONTAINING A PHENOL AND AN OLEFIN TO REACTION TO FORM A REACTION ADMIXTURE CONTAINING RESULTING ALKYLATED PHENOL AND UNREACTED OLEFIN, CONTACTING SAID REACTION ADMIXTURE WITH A SELECTIVE SOLVENT FOR SAID ALKYLATED PHENOL SELECTED FROM THE GROUP CONSISTING OF A NITRAOALKANE, A MIXTURE OF A NITROALKANE AND A LOW MOLECULAR WEIGHT ALCOHOL AND A HIGH BOILING ALKYLATED PHENOL FRACTION RECOVERED FROM THE ALKYLATED PHENOL PRODUCT MENTIONED BELOW TO FORM AN EXTRACT PHASE CONTAINING SAID ALKYLATED PHENOL DISSOLVED IS SAID SELECTIVE SOLVENT, RECOVERING SAID EXTRACT PHASE AND REMOVING SAID SELECTIVE SOLVENT FROM SAID EXTRACT PHASE TO PRODUCE AN ALKYLATED PHENOL PRODUCT HAVING A REDUCED PROPORTION OF UNREACTED OLEFIN WITH RESPECT TO SAID REACTION ADMIXTURE.
Claim 2
Dependent Claim
125 words
A PROCESS FOR THE MANUFACTIRE OF ALKYLATED PHENOL WHICH COMPRISES SUBJECTING A MIXTURE CONTAINING A PHENOL AND AN OLEFIN TO REACTION TO FORM A REACTION ADMIXTURE CONTAINING RESULTING ALKYLATED PHENOL AND UNREACTED OLEFIN, CONTACTING SAID REACTION ADMIXTURE WITH A SELECTIVE SOLVENT FOR SAID ALKYLATED PHENOL SELECTED FROM THE GROUP CONSISTING OF A NITRAOALKANE, A MIXTURE OF A NITROALKANE AND A LOW MOLECULAR WEIGHT ALCOHOL AND A HIGH BOILING ALKYLATED PHENOL FRACTION RECOVERED FROM THE ALKYLATED PHENOL PRODUCT MENTIONED BELOW TO FORM AN EXTRACT PHASE CONTAINING SAID ALKYLATED PHENOL DISSOLVED IS SAID SELECTIVE SOLVENT, RECOVERING SAID EXTRACT PHASE AND REMOVING SAID SELECTIVE SOLVENT FROM SAID EXTRACT PHASE TO PRODUCE AN ALKYLATED PHENOL PRODUCT HAVING A REDUCED PROPORTION OF UNREACTED OLEFIN WITH RESPECT TO SAID REACTION ADMIXTURE.
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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) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |