US2785192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparation of triethanolamine borate
Assignee: Westinghouse Electric Corp
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Filing: 1955-02-04
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Granted: 1957-03-12
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Expires: 1975-02-04
Abstract
No abstract record available.
Inventors
- 👤 Irving N Elbling
- 👤 Stanley H Langer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:56
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A PROCESS FOR PREPARING TRIETHANOLAMINE BORATE WHICH COMPRISES ADMIXING AND HEATING BORIC ACID AND TRIETHANOLAMINE IN THE PRESENCE OF A TWO-LIQUID SOLVENT SYSTEM, ONE OF THE LIQUIDS BEING A SOLVENT FOR THE REACTANTS AND THE OTHER LIQUID BEING A SOLVENT BOTH FOR THE REACTANTS AND THE PRODUCT, THE LIQUID SOLVENTS BEING IMMISCIBLE WITH WATER AND MISCIBLE WITH ONE ANOTHER AND THE LIQUID WHICH IS A SOLVENT FOR THE REACTANTS BEING A HYDROCARBON AND THE LIQUID WHICH IS A SOLVENT BOTH FOR THE REACTANTS AND THE PRODUCT BEING AT LEAST ONE SATURATED MONOHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF CYCLOALKYL AND ALKYL ALCOHOLS HAVING FROM 4 TO 8 CARBON ATOMS PER MOLECULE, SAID SOLVENTS BEING EMPLOYED IN AMOUNTS OF FROM 10 MOLS HYDROCARBON:1 MOL OF ALCOHOL TO 7 MOLS ALCOHOL:1 MOL HYDROCARBON, HEATING THE REACTANTS AT TEMPERATURES UP TO ABOUT 170*C. TO REMOVE THE WATER FORMED IN THE REACTION AND SUBSTANTIALLY ALL THE LIQUID SOLVENTS, AND RECOVERING CRYSTALS OF TRIETHANOLAMINE BORATE FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
165 words
A PROCESS FOR PREPARING TRIETHANOLAMINE BORATE WHICH COMPRISES ADMIXING AND HEATING BORIC ACID AND TRIETHANOLAMINE IN THE PRESENCE OF A TWO-LIQUID SOLVENT SYSTEM, ONE OF THE LIQUIDS BEING A SOLVENT FOR THE REACTANTS AND THE OTHER LIQUID BEING A SOLVENT BOTH FOR THE REACTANTS AND THE PRODUCT, THE LIQUID SOLVENTS BEING IMMISCIBLE WITH WATER AND MISCIBLE WITH ONE ANOTHER AND THE LIQUID WHICH IS A SOLVENT FOR THE REACTANTS BEING A HYDROCARBON AND THE LIQUID WHICH IS A SOLVENT BOTH FOR THE REACTANTS AND THE PRODUCT BEING AT LEAST ONE SATURATED MONOHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF CYCLOALKYL AND ALKYL ALCOHOLS HAVING FROM 4 TO 8 CARBON ATOMS PER MOLECULE, SAID SOLVENTS BEING EMPLOYED IN AMOUNTS OF FROM 10 MOLS HYDROCARBON:1 MOL OF ALCOHOL TO 7 MOLS ALCOHOL:1 MOL HYDROCARBON, HEATING THE REACTANTS AT TEMPERATURES UP TO ABOUT 170*C. TO REMOVE THE WATER FORMED IN THE REACTION AND SUBSTANTIALLY ALL THE LIQUID SOLVENTS, AND RECOVERING CRYSTALS OF TRIETHANOLAMINE BORATE FROM THE REACTION MIXTURE.
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) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |