Patent US2632774A successfully refreshed from Google Patents.
US2632774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxioation of aromatic hydrocarbons
Assignee: Hercules Powder Co
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Filing: 1949-11-18
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Granted: 1953-03-24
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Expires: 1969-11-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Joshua C Conner
- 👤 Arthur D Lohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:34
CPC Classifications
C; C07; C07C; C07C409/00; C07C409/02; C07C409/04; C07C409/08; C07C409/10; C07C407/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
THE PROCESS OF OXIDIZING AN ALKYL-SUBSTITUTED AROMATIC ORGANIC COMPOUND TO A HIGH YIELD OF A TERTIARY ORGANIC HYDROPEROXIDE WHICH COMPRISES PASSING WITH INTIMATE CONTACT AND UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AN OXYGEN-CONTAINING GAS THROUGH A REACTION MIXTURE COMPRISING ESSENTIALLY SAID AROMATIC ORGANIC COMPOUND IN LIQUID STATE AT A RATE OF INPUT SUCH THAT AT LEAST THE THEORETICAL AMOUNT OF OXYGEN IS SUPPLIED AT ALL TIMES THROUGHOUT THE OXIDATION REACTION, IN THE PRESENCE OF A CATALYST OF THE GROUP CONSISTING OF ALKALI METAL AND ALKALINE EARTH METAL OXIDES AND HYDROXIDES, AND MIXTURES THEREOF, AT A TEMPERATURE BETWEEN ABOUT 90* AND ABOUT 145* C. FOR A TIME WHICH IS BETWEEN 0.1 HOUR AND A TIME WHICH IS NO GREATER AT ANY PARTICULAR TEMPERATURE THAN THAT DEFINED BY THE EQUATION LOGE A=11.672-0.0774T, WHERE A=TIME IN HOURS AND T=TEMPERATURE IN SAID AROMATIC ORGANIC COMPOUND AND SAID HYDROPEROXIDE HAVING, RESPECTIVELY, THE STRUCTURAL FORMULAE
Claim 2
Dependent Claim
147 words
THE PROCESS OF OXIDIZING AN ALKYL-SUBSTITUTED AROMATIC ORGANIC COMPOUND TO A HIGH YIELD OF A TERTIARY ORGANIC HYDROPEROXIDE WHICH COMPRISES PASSING WITH INTIMATE CONTACT AND UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AN OXYGEN-CONTAINING GAS THROUGH A REACTION MIXTURE COMPRISING ESSENTIALLY SAID AROMATIC ORGANIC COMPOUND IN LIQUID STATE AT A RATE OF INPUT SUCH THAT AT LEAST THE THEORETICAL AMOUNT OF OXYGEN IS SUPPLIED AT ALL TIMES THROUGHOUT THE OXIDATION REACTION, IN THE PRESENCE OF A CATALYST OF THE GROUP CONSISTING OF ALKALI METAL AND ALKALINE EARTH METAL OXIDES AND HYDROXIDES, AND MIXTURES THEREOF, AT A TEMPERATURE BETWEEN ABOUT 90* AND ABOUT 145* C. FOR A TIME WHICH IS BETWEEN 0.1 HOUR AND A TIME WHICH IS NO GREATER AT ANY PARTICULAR TEMPERATURE THAN THAT DEFINED BY THE EQUATION LOGE A=11.672-0.0774T, WHERE A=TIME IN HOURS AND T=TEMPERATURE IN SAID AROMATIC ORGANIC COMPOUND AND SAID HYDROPEROXIDE HAVING, RESPECTIVELY, THE STRUCTURAL FORMULAE
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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) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |