US3022338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of unsaturated monocarboxylic acid esters
Assignee: Wacker Chemie AG
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Filing: 1959-06-23
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Granted: 1962-02-20
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Expires: 1979-06-23
Abstract
No abstract record available.
Inventors
- 👤 Enk Eduard
- 👤 Knorr Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:09
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/30; C07C67/317; C07C67/327
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR THE PRODUCTION OF A,B-UNSATURATED MONOCARBOXYLIC ACID ESTERS WHICH COMPRISES CONTACTING A B-ALKOXY MONOCARBOXYLIC ACID ESTER WITH A CATALYST COMPRISING AN ALKALINE EARTH METAL PHOSPHATE AND A COMPOUND OF A TRANSITION ELEMENT OF GROUP I TO GROUP VIII OF THE PERIODIC SYSTEM SELECTED FROM THE GROUP CONSISTING OF COPPER, CERIUM, THORIUM, VANADIUM, CHROMIUM, ION AND NICKEL AT A TEMPERATURE BETWEEN 250 AND 380* C. TO FORM AN A,B-UNSATURATED CARBOXYLIC ACID ESTER AND AN ALCOHOL.
Claim 2
Dependent Claim
76 words
A PROCESS FOR THE PRODUCTION OF A,B-UNSATURATED MONOCARBOXYLIC ACID ESTERS WHICH COMPRISES CONTACTING A B-ALKOXY MONOCARBOXYLIC ACID ESTER WITH A CATALYST COMPRISING AN ALKALINE EARTH METAL PHOSPHATE AND A COMPOUND OF A TRANSITION ELEMENT OF GROUP I TO GROUP VIII OF THE PERIODIC SYSTEM SELECTED FROM THE GROUP CONSISTING OF COPPER, CERIUM, THORIUM, VANADIUM, CHROMIUM, ION AND NICKEL AT A TEMPERATURE BETWEEN 250 AND 380* C. TO FORM AN A,B-UNSATURATED CARBOXYLIC ACID ESTER AND AN ALCOHOL.
References Cited (Backward Citations)
US2376704A
Cited
US2457225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |