US2564077A
Expired / Lapsed
US
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Alkenylation process
Assignee: Standard Oil Co
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Filing: 1948-12-11
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Granted: 1951-08-14
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Expires: 1968-12-11
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Proell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:32
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/70; C07C2531/00; C07C2531/02; C07C2531/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE ALKENYLATION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AROMATIC HYDROCARBONS OF THE BENZENE AND NAPHTHALENE SERIES WITH A CONJUGATED DIOLEFIN HAVING AT MOST SIX CARBON ATOMS PER MOLECULE COMPRISING REACTIONG THE SAID AROMTIC WITH THE DIOLEFIN FOR A PERIOD OF TIME SUFFICIENT TO EFFECT SUBSTANTIAL REACTION AST A TEMPERATURE BETWEEN 0* TO 150* C., AND IN THE PRESENCE OF ABOUT 5 TO 50 PERCENT, BY WEIGHT OF THE AROMATIC REACTANT, OF AN ALKANESULFONIC ACID HAVING AT MOST FIVE CARBON ATOMS PER MOLECULE.
Claim 2
Dependent Claim
85 words
THE ALKENYLATION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AROMATIC HYDROCARBONS OF THE BENZENE AND NAPHTHALENE SERIES WITH A CONJUGATED DIOLEFIN HAVING AT MOST SIX CARBON ATOMS PER MOLECULE COMPRISING REACTIONG THE SAID AROMTIC WITH THE DIOLEFIN FOR A PERIOD OF TIME SUFFICIENT TO EFFECT SUBSTANTIAL REACTION AST A TEMPERATURE BETWEEN 0* TO 150* C., AND IN THE PRESENCE OF ABOUT 5 TO 50 PERCENT, BY WEIGHT OF THE AROMATIC REACTANT, OF AN ALKANESULFONIC ACID HAVING AT MOST FIVE CARBON ATOMS PER MOLECULE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |