US3060227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of acrylic acid esters
Assignee: BASF SE
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Filing: 1961-05-05
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Granted: 1962-10-23
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Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
- 👤 Stadler Robert
- 👤 Lautenschlager Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:57
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/36; C07C67/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
IN A PROCESS FOR THE PRODUCTION OF ACRYLIC ACID ESTERS BY THE INTERACTION OF ACETYLENE, CARBON MONOXIDE AND LOWER ALKANOLS AT A TEMPERATURE OF BETWEEN 100 AND 250*C. AND AT A PRESSURE OF BETWEEN 5 AND 80 ATMOSPHERES, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE REACTION WITH AN INITIAL REACTION MEDIUM OF SAID LOWER ALKANOL CONTAINING FROM 4 TO 12 PERCENT BY WEIGHT, WITH REFERENCE TO THE AMOUNT OF THE LOWER ALKANOL, OF WATER, 0.1 TO 1 PERCENT BY WEIGHT, WITH REFERENCE TO THE AMOUNT OF THE LOWER ALKANOL, OF A CATALYST CONSISTING ESSENTIALLY OF NICKEL IONS AND HALOGEN IONS, SAID HALOGEN BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE AND 3 TO 20 PERCENT BY WEIGHT, WITH REFERENCE TO THE AMOUNT OF THE CATALYST OF A HEAVY METAL AS ACTIVATOR, SAID HEAVY METAL BEING SELECTED FORM THE GROUP CONSISTING OF COPPER, MERCURY, ZINC, CADMIUM, LEAD, AND CHOMIUM, AND IN THE ABSENCE OF AN INERT ORGANIC SOLVENT BUT IN THE PRESENCE OF ACRYLIC ACID WHICH IS FORMED DURING THE REACTION FROM SAID WATER IN THE REACTION MEDIUM.
Claim 2
Dependent Claim
180 words
IN A PROCESS FOR THE PRODUCTION OF ACRYLIC ACID ESTERS BY THE INTERACTION OF ACETYLENE, CARBON MONOXIDE AND LOWER ALKANOLS AT A TEMPERATURE OF BETWEEN 100 AND 250*C. AND AT A PRESSURE OF BETWEEN 5 AND 80 ATMOSPHERES, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE REACTION WITH AN INITIAL REACTION MEDIUM OF SAID LOWER ALKANOL CONTAINING FROM 4 TO 12 PERCENT BY WEIGHT, WITH REFERENCE TO THE AMOUNT OF THE LOWER ALKANOL, OF WATER, 0.1 TO 1 PERCENT BY WEIGHT, WITH REFERENCE TO THE AMOUNT OF THE LOWER ALKANOL, OF A CATALYST CONSISTING ESSENTIALLY OF NICKEL IONS AND HALOGEN IONS, SAID HALOGEN BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE AND 3 TO 20 PERCENT BY WEIGHT, WITH REFERENCE TO THE AMOUNT OF THE CATALYST OF A HEAVY METAL AS ACTIVATOR, SAID HEAVY METAL BEING SELECTED FORM THE GROUP CONSISTING OF COPPER, MERCURY, ZINC, CADMIUM, LEAD, AND CHOMIUM, AND IN THE ABSENCE OF AN INERT ORGANIC SOLVENT BUT IN THE PRESENCE OF ACRYLIC ACID WHICH IS FORMED DURING THE REACTION FROM SAID WATER IN THE REACTION MEDIUM.
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) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |