US2771492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of dodecanoyl peroxide
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1954-07-28
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Granted: 1956-11-20
•
Expires: 1974-07-28
Abstract
No abstract record available.
Inventors
- 👤 Chapman James
- 👤 Wynne William Allenby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:46
CPC Classifications
C; C07; C07C; C07C407/00; C07C407/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PROCESS FOR THE MANUFACTURE OF DODECANOYL PEROXIDE WHICH COMPRISES REACTING DODECANOYL CHLORIDE (C11H23COCL) WITH 0.4 TO 4 MOLES OF HYDROGEN PEROXIDE AND 0.9 TO 1.5 MOLES OF A CAUSTIC ALKALI SELECTED FROM THE GROUP CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE, THE HYDROGEN PEROXIDE BEING IN THE FORM OF AN AQUEOUS SOLUTION CONTAINING 20% TO 60% BY WEIGHT OF HYDROGEN PEROXIDE AND THE HYDROXIDE BEING IN THE FORM OF AN AQUEOUS SOLUTION CONTAINING 10% TO 45% BY WEIGHT OF HYDROXIDE WHEN THE LATTER IS SODIUM HYDROXIDE AND 14% TO 50% BY WEIGHT OF HYDROXIDE WHEN THE LATTER IS POTASSIUM HYDROXIDE, AT A TEMPERATURE IN THE RANGE OF -10* C. TO 5* C.
Claim 2
Dependent Claim
113 words
A PROCESS FOR THE MANUFACTURE OF DODECANOYL PEROXIDE WHICH COMPRISES REACTING DODECANOYL CHLORIDE (C11H23COCL) WITH 0.4 TO 4 MOLES OF HYDROGEN PEROXIDE AND 0.9 TO 1.5 MOLES OF A CAUSTIC ALKALI SELECTED FROM THE GROUP CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE, THE HYDROGEN PEROXIDE BEING IN THE FORM OF AN AQUEOUS SOLUTION CONTAINING 20% TO 60% BY WEIGHT OF HYDROGEN PEROXIDE AND THE HYDROXIDE BEING IN THE FORM OF AN AQUEOUS SOLUTION CONTAINING 10% TO 45% BY WEIGHT OF HYDROXIDE WHEN THE LATTER IS SODIUM HYDROXIDE AND 14% TO 50% BY WEIGHT OF HYDROXIDE WHEN THE LATTER IS POTASSIUM HYDROXIDE, AT A TEMPERATURE IN THE RANGE OF -10* C. TO 5* C.
References Cited (Backward Citations)
US1754914A
Cited
GB334531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |