Patent US2813907A successfully refreshed from Google Patents.
US2813907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of aralkyl hydroperoxides
Assignee: Shell Development Co
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Filing: 1955-09-19
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Granted: 1957-11-19
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Expires: 1975-09-19
Abstract
No abstract record available.
Inventors
- 👤 Johannes C Vlugter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:37
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
78 words
IN A PROCESS FOR THE PRODUCTION OF AN ALPHA-ALKYL BENZYL HYDROPEROXIDE-CONTAINING REACTION MIXTURE BY THE REACTION OF AN ALPHA-ALKYL METHYL BENZENE HYDROCARBON WITH OXYGEN, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID ALPHA-ALKYL METHYL BENZENE HYDROCARBON WITH SILICEOUS CRACKING CATALYST IN THE PRESENCE OF FROM ABOUT 0.01 TO ABOUT 1% BY WEIGHT, BASED UPON SAID ALPHA-ALKYL METHYL BENZENE HYDROCARBON, OF PROPYLENE AT A TEMPERATURE OF FROM ABOUT 150 TO ABOUT 350*C. BEFORE REACTING SAID ALPHA-ALKYL METHYL BENZENE HYDROCARBON WITH OXYGEN.
Claim 2
Dependent Claim
78 words
IN A PROCESS FOR THE PRODUCTION OF AN ALPHA-ALKYL BENZYL HYDROPEROXIDE-CONTAINING REACTION MIXTURE BY THE REACTION OF AN ALPHA-ALKYL METHYL BENZENE HYDROCARBON WITH OXYGEN, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID ALPHA-ALKYL METHYL BENZENE HYDROCARBON WITH SILICEOUS CRACKING CATALYST IN THE PRESENCE OF FROM ABOUT 0.01 TO ABOUT 1% BY WEIGHT, BASED UPON SAID ALPHA-ALKYL METHYL BENZENE HYDROCARBON, OF PROPYLENE AT A TEMPERATURE OF FROM ABOUT 150 TO ABOUT 350*C. BEFORE REACTING SAID ALPHA-ALKYL METHYL BENZENE HYDROCARBON WITH OXYGEN.
References Cited (Backward Citations)
GB719895A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |