Patent US3048621A successfully refreshed from Google Patents.
US3048621A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of acrylic acid esters
Assignee: BASF SE
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Filing: 1957-12-18
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Granted: 1962-08-07
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Expires: 1977-12-18
Abstract
No abstract record available.
Inventors
- 👤 Stadler Robert
- 👤 Becke Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:10
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/10; C07C51/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A PROCESS FOR THE PRODUCTION OF ACRYLIC ACID ESTERS BY THE INTERACTION OF ACETYLENE, CARABON MONOXIDE AND AN ALCOHOL SELECTED FROM THE GROUP CONSISTING OF A LOWER ALKANOL AND PHENOL AT A TEMPERATURE OF BETWEEN ABOUT 100*C. TO 250*C. AND A PRESSURE OF MORE THAN 5 ATMOSPHERES AND IN THE PRESENCE OF MINOR AMOUNTS OF NICKEL AND AN HALOGEN ION SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE IONS AS CATALYSTS AND IN THE PRESENCE OF A HEAVY METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND MERCURY AS ACTIVATOR, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE REACTION SUBSTANTIALLY IN THE ABSENCE OF AN INERT ORGANIC SOLVENT BUT IN THE PRESENCE OF FROM ABAOUT 1% TO ABOUT 14.5% BY WEIGHT WITH REFERENCE TO THE AMOUNT OF SAID ALCOHOL OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A LOWER HYDROCARBYL CARABOXYLIC ACID AND A LOWER HYDROCARBYL DICARBOXYLIC ACID.
Claim 2
Dependent Claim
151 words
IN A PROCESS FOR THE PRODUCTION OF ACRYLIC ACID ESTERS BY THE INTERACTION OF ACETYLENE, CARABON MONOXIDE AND AN ALCOHOL SELECTED FROM THE GROUP CONSISTING OF A LOWER ALKANOL AND PHENOL AT A TEMPERATURE OF BETWEEN ABOUT 100*C. TO 250*C. AND A PRESSURE OF MORE THAN 5 ATMOSPHERES AND IN THE PRESENCE OF MINOR AMOUNTS OF NICKEL AND AN HALOGEN ION SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE IONS AS CATALYSTS AND IN THE PRESENCE OF A HEAVY METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND MERCURY AS ACTIVATOR, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE REACTION SUBSTANTIALLY IN THE ABSENCE OF AN INERT ORGANIC SOLVENT BUT IN THE PRESENCE OF FROM ABAOUT 1% TO ABOUT 14.5% BY WEIGHT WITH REFERENCE TO THE AMOUNT OF SAID ALCOHOL OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A LOWER HYDROCARBYL CARABOXYLIC ACID AND A LOWER HYDROCARBYL DICARBOXYLIC ACID.
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) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |