US2805248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of carboxylic a cids and their esters
Assignee: BASF SE
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Filing: 1954-04-06
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Granted: 1957-09-03
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Expires: 1974-04-06
Abstract
No abstract record available.
Inventors
- 👤 Friederich Herbert
- 👤 Hrubesch Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:09
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/10; C07C51/12; C07C51/54; C07C51/56; C07C67/00; C07C67/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
AN IMPROVED PROCESS FOR THE PRODUCTION OF CARBOXYLIC ACIDS AND THEIR ESTERS WHICH COMPRISES REACTING CARBON MONOXIDE WITH AN ALCOHOL SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL ALCOHOLS, LOWER ALKYL DIOLS, AND PHENYL-LOWER ALKYL-ALCOHOLS AT TEMPERATURES BETWEEN 70* AND 250*C. AND UNDER A PRESSURE OF FROM 50 TO 800 ATMOSPHERES IN THE PRESENCE OF A COBALT SALT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL CARBOXYLIC ACIDS AND PHENY-LOWER ALKYL-CARBOXYLIC ACIDS, A HALOGENIDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL CHLORIDES, PHENYL-LOWER ALKYL-CHLORIDES, LOWER ALKYL BROMIDES, AND PHENYL-LOWER ALKYL-BROMIDES, AND AN ACID AMIDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL CARBOXYLIC ACID AMIDES, AND PHENYL-LOWER ALKYL-CARBOXYLIC ACID AMIDES DERIVED FROM AN AMINE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, PHENYL-LOWER ALKYL, SATURATED HETEROCYCLIC, AND TOLYL PRIMARY AND SECONDARY AMINES.
Claim 2
Dependent Claim
136 words
AN IMPROVED PROCESS FOR THE PRODUCTION OF CARBOXYLIC ACIDS AND THEIR ESTERS WHICH COMPRISES REACTING CARBON MONOXIDE WITH AN ALCOHOL SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL ALCOHOLS, LOWER ALKYL DIOLS, AND PHENYL-LOWER ALKYL-ALCOHOLS AT TEMPERATURES BETWEEN 70* AND 250*C. AND UNDER A PRESSURE OF FROM 50 TO 800 ATMOSPHERES IN THE PRESENCE OF A COBALT SALT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL CARBOXYLIC ACIDS AND PHENY-LOWER ALKYL-CARBOXYLIC ACIDS, A HALOGENIDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL CHLORIDES, PHENYL-LOWER ALKYL-CHLORIDES, LOWER ALKYL BROMIDES, AND PHENYL-LOWER ALKYL-BROMIDES, AND AN ACID AMIDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL CARBOXYLIC ACID AMIDES, AND PHENYL-LOWER ALKYL-CARBOXYLIC ACID AMIDES DERIVED FROM AN AMINE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, PHENYL-LOWER ALKYL, SATURATED HETEROCYCLIC, AND TOLYL PRIMARY AND SECONDARY AMINES.
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) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |