US3275680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of organic acetates in presence of a noble metal catalyst and oxygen
Assignee: Bayer AG
•
Filing: 1963-01-23
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Granted: 1966-09-27
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Expires: 1983-01-23
Abstract
No abstract record available.
Inventors
- 👤 Holzrichter Hermann
- 👤 Kronig Walter
- 👤 Frenz Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:13
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/04; C07C67/05; C07C67/055; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/44; C07C67/035; B01J21/00; B01J21/06; B01J21/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
46 words
A PROCESS FOR THE PRODUCTION OF VINYL ACETATE WHICH COMPRISES REACTING ETHYLENE WITH OXYGEN AND ACETIC ACID IN THE PRESENCE OF AT LEAST A CATALYTIC AMOUNT OF A NOBLE METAL AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 50250*C., AND RECOVERING THE VINYL ACETATE THUS PRODUCED.
Claim 2
Dependent Claim
46 words
A PROCESS FOR THE PRODUCTION OF VINYL ACETATE WHICH COMPRISES REACTING ETHYLENE WITH OXYGEN AND ACETIC ACID IN THE PRESENCE OF AT LEAST A CATALYTIC AMOUNT OF A NOBLE METAL AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 50250*C., AND RECOVERING THE VINYL ACETATE THUS PRODUCED.
Claim 3
Dependent Claim
46 words
A PROCESS FOR THE PRODUCTION OF VINYL ACETATE WHICH COMPRISES PASSING A STREAM OF REACTANTS ESSENTIALLY CONSISTING OF OXYGEN, AQUEOUS ACETIC ACID AND ETYLENE IN CONTACT WITH A NOBLE METAL CATALYST AT A TEMPERATURE BETWEEN ABOUT 50 AND 250*C. AND RECOVERING THE VINYL ACETATE THUS PRODUCED.
Claim 4
Dependent Claim
46 words
A PROCESS FOR THE PRODUCTION OF VINYL ACETATE WHICH COMPRISES PASSING A STREAM OF REACTANTS ESSENTIALLY CONSISTING OF OXYGEN, AQUEOUS ACETIC ACID AND ETYLENE IN CONTACT WITH A NOBLE METAL CATALYST AT A TEMPERATURE BETWEEN ABOUT 50 AND 250*C. AND RECOVERING THE VINYL ACETATE THUS PRODUCED.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |