Patent US2628252A successfully refreshed from Google Patents.
US2628252A
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Preparation of monomeric openchain delta, epsilon-unsaturated carbonyl compounds
Assignee: EIDP Inc
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Filing: 1950-12-07
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Granted: 1953-02-10
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Expires: 1970-12-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles J Albisetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:38
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/20; C07C49/203; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/69; C07C47/00; C07C47/20; C07C47/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PROCESS FOR THE ADDITION OF ONE MOLE OF A MONO-OLEFIN HAVING FROM 3 TO 8 CARBON ATOMS TO ONE MOLE OF AN ALPHA, BETA-UNSATURATED CARBONYL COMPOUND CONSISTING SOLELY OF HYDROCARBON OTHER THAN THE GROUP CONTAINING THE CARBONYL FUNCTION AND HAVING FROM 3 TO 12 CARBON ATOMS THROUGH THE BETA CARBON ATOM THEREOF TO FORM A MONOMERIC OPEN-CHAIN DELTA, EPSILON-UNSATURATED CARBONYL COMPOUND WHICH COMPRISES HEATING AT A TEMPERATURE OF 300* TO 350* C. FOR A PERIOD OF TIME NOT MORE THAN 15 MINUTES A REACTION MIXTURE FREE FROM A CATALYST AND CONTAINING SAID ALPHA, BETA-UNSATURATED CARBONYL COMPOUND AND AT LEAST TOW MOLAR EQUIVALENTS OF SAID MONOOLEFIN, THEN SEPARATING FROM SAID REACTION MIXTURE A MONOMERIC OPEN-CHAIN DELTA, EPSILON-UNSATURATED CARBONYL COMPOUND AS THE RESULTING PRODUCT
Claim 2
Dependent Claim
123 words
A PROCESS FOR THE ADDITION OF ONE MOLE OF A MONO-OLEFIN HAVING FROM 3 TO 8 CARBON ATOMS TO ONE MOLE OF AN ALPHA, BETA-UNSATURATED CARBONYL COMPOUND CONSISTING SOLELY OF HYDROCARBON OTHER THAN THE GROUP CONTAINING THE CARBONYL FUNCTION AND HAVING FROM 3 TO 12 CARBON ATOMS THROUGH THE BETA CARBON ATOM THEREOF TO FORM A MONOMERIC OPEN-CHAIN DELTA, EPSILON-UNSATURATED CARBONYL COMPOUND WHICH COMPRISES HEATING AT A TEMPERATURE OF 300* TO 350* C. FOR A PERIOD OF TIME NOT MORE THAN 15 MINUTES A REACTION MIXTURE FREE FROM A CATALYST AND CONTAINING SAID ALPHA, BETA-UNSATURATED CARBONYL COMPOUND AND AT LEAST TOW MOLAR EQUIVALENTS OF SAID MONOOLEFIN, THEN SEPARATING FROM SAID REACTION MIXTURE A MONOMERIC OPEN-CHAIN DELTA, EPSILON-UNSATURATED CARBONYL COMPOUND AS THE RESULTING PRODUCT
References Cited (Backward Citations)
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Cited
US2297039A
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US2387366A
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US2496358A
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US2514168A
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US2562849A
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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) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |