US3060228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of methyl acrylate
Assignee: Lonza Electric and Chemical Works Ltd
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Filing: 1962-02-01
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Granted: 1962-10-23
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Expires: 1982-02-01
Abstract
No abstract record available.
Inventors
- 👤 Pino Piero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:36
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/36; C07C67/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A PROCESS FOR THE PREPARATION OF METHYL ACRYLATE CONTAINING LESS THAN 1 PERCENT OF METHYL PROPIONATE, BY THE REACTIONS OF ACETYLENE WITH CARBON MONOXIDE AND METHANOL IN THE PRESENCE OF A CATALYST AT A TEMPERATURE OF 80 TO 200*C. AND AT A PRESSURE OF ABOUT 50 TO 500 ATMOSPHERES IN THE PRESENCE OF LIQUIDS IN WHICH THE ACETYLENE IN THE GAS PHASE HAS A LOW PARTIAL PRESSURE, SAID PROCESS COMPRISING PROVIDING A SOLUTION CONTAINING AT MOST 0.5 MOLE OF ACETYLENE PER LITER OF METHANOL AND 1 TO 10 PER THOUSAND BY WEIGHT OF DICOBALT ACTACARBONYL, FORCING CARBON MONOXIDE INTO SAID SOLUTION UNTIL THE REACTION PRESSURE IS OBTAINED, HEATING TO REACTION TEMPERATURE, AND RECOVERING METHYL ACRYLATE FROM THE OBTAINED REACTION PRODUCT BY RECTIFICATION.
Claim 2
Dependent Claim
122 words
A PROCESS FOR THE PREPARATION OF METHYL ACRYLATE CONTAINING LESS THAN 1 PERCENT OF METHYL PROPIONATE, BY THE REACTIONS OF ACETYLENE WITH CARBON MONOXIDE AND METHANOL IN THE PRESENCE OF A CATALYST AT A TEMPERATURE OF 80 TO 200*C. AND AT A PRESSURE OF ABOUT 50 TO 500 ATMOSPHERES IN THE PRESENCE OF LIQUIDS IN WHICH THE ACETYLENE IN THE GAS PHASE HAS A LOW PARTIAL PRESSURE, SAID PROCESS COMPRISING PROVIDING A SOLUTION CONTAINING AT MOST 0.5 MOLE OF ACETYLENE PER LITER OF METHANOL AND 1 TO 10 PER THOUSAND BY WEIGHT OF DICOBALT ACTACARBONYL, FORCING CARBON MONOXIDE INTO SAID SOLUTION UNTIL THE REACTION PRESSURE IS OBTAINED, HEATING TO REACTION TEMPERATURE, AND RECOVERING METHYL ACRYLATE FROM THE OBTAINED REACTION PRODUCT BY RECTIFICATION.
References Cited (Backward Citations)
No citation records indexed.
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 |