US3217020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for transalkylation and preparation of higher fatty acids from magnesium lower alkyl compounds
Assignee: ZIEGLER AG
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Filing: 1961-02-21
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Granted: 1965-11-09
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Expires: 1981-02-21
Abstract
No abstract record available.
Inventors
- 👤 Ziegler Karl
- 👤 Kaiser Wilhelm Platz
- 👤 Koster Roland
- 👤 Grimme Wolfram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:34
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/027; C07C; C07C51/00; C07C51/15; C07F3/00; C07F3/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
A PROCESS FOR THE PRODUCTION OF HIGHER CARBOYLIC ACIDS WHICH COMPRISES THE STEPS OF REACTING A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWER MAGNESIUM DIALKYLS AND LOWER ALKYL MAGNESIUM HALIDES WITH A HIGHER BORON TRIALKYL AT AN ELEVATED TEMPERATURE OF UP TO ABOUT 140*C. AND AT REDUCED PRESSURE, REMOVING THE LOWER BORON TRIALKYL WHICH IS FORMED FROM THE REACTION MIXTURE BY DISTILLATION, TREATING THE DISTILLATION RESIDUE WITH CARBON DIOXIDE TO FORM THE MAGNESIUM SALTS OF THE CORRESPONDING CARBOXYLIC ACIDS, REACTING SAID SALTS WITH ACID TO THEREBY PRODUCE THE FREE CARBOXYLIC ACIDS AND ISOLATING THE RESULTING HIGHER CARBOXYLIC ACIDS THUS PRODUCED.
Claim 2
Dependent Claim
101 words
A PROCESS FOR THE PRODUCTION OF HIGHER CARBOYLIC ACIDS WHICH COMPRISES THE STEPS OF REACTING A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWER MAGNESIUM DIALKYLS AND LOWER ALKYL MAGNESIUM HALIDES WITH A HIGHER BORON TRIALKYL AT AN ELEVATED TEMPERATURE OF UP TO ABOUT 140*C. AND AT REDUCED PRESSURE, REMOVING THE LOWER BORON TRIALKYL WHICH IS FORMED FROM THE REACTION MIXTURE BY DISTILLATION, TREATING THE DISTILLATION RESIDUE WITH CARBON DIOXIDE TO FORM THE MAGNESIUM SALTS OF THE CORRESPONDING CARBOXYLIC ACIDS, REACTING SAID SALTS WITH ACID TO THEREBY PRODUCE THE FREE CARBOXYLIC ACIDS AND ISOLATING THE RESULTING HIGHER CARBOXYLIC ACIDS THUS PRODUCED.
Claim 3
Dependent Claim
67 words
A PROCESS FOR THE TRANSALKYLATION OF MAGNESIUM ALKYL COMPOUNDS WHICH COMPRISES THE STEPS OF REACTING A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWR MAGNESIUM DIALKYLS, THE ALKYL RADICALS OF WHICH CONTAIN UP TO 6 CARBON ATOMS AND LOWER ALKYL MAGNESIUM HALIDES, THE ALKYL RADICALS OF WHICH CONTAIN FROM 2 TO 6 CARBON ATOMS, WITH A HIGHER BORON TRIALKYL, AND SEPARATELY RECOVERING THE TRANSALKYLATION PRODUCTS THEREBY PRODUCED.
Claim 4
Dependent Claim
67 words
A PROCESS FOR THE TRANSALKYLATION OF MAGNESIUM ALKYL COMPOUNDS WHICH COMPRISES THE STEPS OF REACTING A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWR MAGNESIUM DIALKYLS, THE ALKYL RADICALS OF WHICH CONTAIN UP TO 6 CARBON ATOMS AND LOWER ALKYL MAGNESIUM HALIDES, THE ALKYL RADICALS OF WHICH CONTAIN FROM 2 TO 6 CARBON ATOMS, WITH A HIGHER BORON TRIALKYL, AND SEPARATELY RECOVERING THE TRANSALKYLATION PRODUCTS THEREBY PRODUCED.
References Cited (Backward Citations)
DE1057600B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |