US2720530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ketonic epoxides
Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-01-19
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Granted: 1955-10-11
•
Expires: 1973-01-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Tracy M Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:50
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
18 words
A LIQUID MIXTURE OF ADDUCTS OF BUTADIENE MONOXIDE AND A SATURATED ALIPHATIC ALDEHYDE, SAID ADDUCTS HAVING THE FORMULA
Claim 2
Dependent Claim
18 words
A LIQUID MIXTURE OF ADDUCTS OF BUTADIENE MONOXIDE AND A SATURATED ALIPHATIC ALDEHYDE, SAID ADDUCTS HAVING THE FORMULA
Claim 3
Dependent Claim
69 words
THE PROCESS WHICH COMPRISES CONTACTING BUTADIENE MONOXIDE, IN THE PRESENCE OF A PEROXIDIC FREE RADICAL LIBERATING AGENT AS CATALYST, WITH A SATURATED ALIPHATIC ALDEHYDE HAVING THE FORMULA RCHO IN WHICH R IS AN ALKYL RADICAL OF FROM 1 TO 17 CARBON ATOMS AND RECOVERING FROM THE RESULTING REACTION PRODUCT AN ADDUCT IN WHICH ONE MOLE OF THE ALDEHYDE HAS COMBINED WITH FROM 1 TO 20 MOLES OF BUTADIENE MONOXIDE.
Claim 4
Dependent Claim
69 words
THE PROCESS WHICH COMPRISES CONTACTING BUTADIENE MONOXIDE, IN THE PRESENCE OF A PEROXIDIC FREE RADICAL LIBERATING AGENT AS CATALYST, WITH A SATURATED ALIPHATIC ALDEHYDE HAVING THE FORMULA RCHO IN WHICH R IS AN ALKYL RADICAL OF FROM 1 TO 17 CARBON ATOMS AND RECOVERING FROM THE RESULTING REACTION PRODUCT AN ADDUCT IN WHICH ONE MOLE OF THE ALDEHYDE HAS COMBINED WITH FROM 1 TO 20 MOLES OF BUTADIENE MONOXIDE.
References Cited (Backward Citations)
US2644794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |