Patent US3344046A successfully refreshed from Google Patents.
US3344046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic preparation of organic carbonates
Assignee: Sunoco Inc
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Filing: 1964-10-23
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Granted: 1967-09-26
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Expires: 1984-10-23
Abstract
No abstract record available.
Inventors
- 👤 William C Neikam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:33
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/10; C07D317/32; C07D317/34; C07D317/36; C25; C25B; C25B3/00; C25B3/01; C25B3/03; C25B3/20; C25B3/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
METHOD WHICH COMPRISES ELECTROLYZING A SUBSTITUTED AROMATIC HYDROCARBON CHARACTERIZED IN THAT IT CONTAINS EXACTLY ONE ARYL NUCLEUS, THE NUCLEAR CARBON ATOMS OF SAID NUCLEUS HAVING ATTACHED THERETO ONLY OTHER NUCLEAR CARBON ATOMS, HYDROGEN, SATURATED ALIPHATIC RADICALS, AND MONOOLEFINIC ALIPHATIC RADICALS, THERE BEING PRESENT AT LEAST ONE MONOOLEFINIC ALIPHATIC RADICAL IN WHICH THE DOUBLE BOND IS CONJUGATED WITH UNSATURATION IN AN ARYL RING OF SAID NUCLEUS, SAID ELECTROLYZING BEING (1) IN AN ELETROLYTIC CELL CONTAINING AN ANODE AND CATHODE, (2) AT A POTENTIAL MORE NEGATIVE THAN THE HALF-WAVE POTENTIAL OF SAID HYDROCARBON, (3) IN THE PRESENCE OF AN ELECTROLYTE, (4) IN THE PRESENCE OF A MUTUAL SOLVENT FOR SAID ELECTROLYTE AND SAID HYDROCARBON, AND (5) IN THE PRESENCE OF CO2, SAID HYDROCARBON BEING PRESENT AT THE SURFACE OF SAID CATHODE DURING SAID ELECTROLYSIS, WHEREBY THERE IS FORMED A 1-ARYL-1,2-ALKYLENE CARBONATE, AND SEPARATING SAID CARBONATE FROM SAID ELECTROLYTE AND SOLVENT.
Claim 2
Dependent Claim
148 words
METHOD WHICH COMPRISES ELECTROLYZING A SUBSTITUTED AROMATIC HYDROCARBON CHARACTERIZED IN THAT IT CONTAINS EXACTLY ONE ARYL NUCLEUS, THE NUCLEAR CARBON ATOMS OF SAID NUCLEUS HAVING ATTACHED THERETO ONLY OTHER NUCLEAR CARBON ATOMS, HYDROGEN, SATURATED ALIPHATIC RADICALS, AND MONOOLEFINIC ALIPHATIC RADICALS, THERE BEING PRESENT AT LEAST ONE MONOOLEFINIC ALIPHATIC RADICAL IN WHICH THE DOUBLE BOND IS CONJUGATED WITH UNSATURATION IN AN ARYL RING OF SAID NUCLEUS, SAID ELECTROLYZING BEING (1) IN AN ELETROLYTIC CELL CONTAINING AN ANODE AND CATHODE, (2) AT A POTENTIAL MORE NEGATIVE THAN THE HALF-WAVE POTENTIAL OF SAID HYDROCARBON, (3) IN THE PRESENCE OF AN ELECTROLYTE, (4) IN THE PRESENCE OF A MUTUAL SOLVENT FOR SAID ELECTROLYTE AND SAID HYDROCARBON, AND (5) IN THE PRESENCE OF CO2, SAID HYDROCARBON BEING PRESENT AT THE SURFACE OF SAID CATHODE DURING SAID ELECTROLYSIS, WHEREBY THERE IS FORMED A 1-ARYL-1,2-ALKYLENE CARBONATE, AND SEPARATING SAID CARBONATE FROM SAID ELECTROLYTE AND SOLVENT.
References Cited (Backward Citations)
US3214356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |