US3148200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of carboxylic acid esters
Assignee: Monsanto Co
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Filing: 1961-12-29
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Granted: 1964-09-08
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 Robert H Mills
- 👤 Ruth T Weinkauff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:09
CPC Classifications
C; C10; C10M; C10M3/00; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/11; C08K5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A METHOD FOR THE PREPARATION OF AN ESTER OF AN ORGANIC CARBOXYLIC ACID OF THE FORMULA HOOC-R(-COO-R'')N-HM WHEREIN M AND N ARE UNLIKE INTEGERS FROM ZERO TO ONE, R'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL, AND R IS A DIVALENT RADICAL SELECTED FROM THE GROUP CONSISTING OF SATURATED AND OLEFINICALLY UNSATURATED ACYCLIC HYDROCARBONS, MONOCYCLIC AND BICYCLIC AROMATIC HYDROCARBONS, AND THE MONOHYDROXYL DERIVATIVES OF SAID ACYCLIC AND AROMATIC HYDROCARBONS, SAID METHOD COMPRISING REACTING ABOUT ONE MOL PROPORTION OF A DIHALOALKANE CONTAINING FROM 1 TO 20 CARBON ATOMS, THE HALOGEN OF SAID DIHALOALKANE BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, ABOUT TWO MOL PROPORTIONS OF A TRIALKYLAMINE CONTAINING A TOTAL OF 3 TO 24 CARBON ATOMS, AND ABOUT TWO MOL PROPORTIONS OF THE ORGANIC CARBOXYLIC ACID TO BE ESTERIFIED.
Claim 2
Independent Claim
135 words
A METHOD FOR THE PREPARATION OF AN ESTER OF AN ORGANIC CARBOXYLIC ACID OF THE FORMULA HOOC-R(-COO-R'')N-HM WHEREIN M AND N ARE UNLIKE INTEGERS FROM ZERO TO ONE, R'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL, AND R IS A DIVALENT RADICAL SELECTED FROM THE GROUP CONSISTING OF SATURATED AND OLEFINICALLY UNSATURATED ACYCLIC HYDROCARBONS, MONOCYCLIC AND BICYCLIC AROMATIC HYDROCARBONS, AND THE MONOHYDROXYL DERIVATIVES OF SAID ACYCLIC AND AROMATIC HYDROCARBONS, SAID METHOD COMPRISING REACTING ABOUT ONE MOL PROPORTION OF A DIHALOALKANE CONTAINING FROM 1 TO 20 CARBON ATOMS, THE HALOGEN OF SAID DIHALOALKANE BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, ABOUT TWO MOL PROPORTIONS OF A TRIALKYLAMINE CONTAINING A TOTAL OF 3 TO 24 CARBON ATOMS, AND ABOUT TWO MOL PROPORTIONS OF THE ORGANIC CARBOXYLIC ACID TO BE ESTERIFIED.
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |