Preparation of ammonium or phosphonium borate salts
US10479804B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Jan 27, 2017 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Jan 27, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A process for preparing an ammonium or phosphonium borate salt KA containing a cation K and an anion A. The process includes providing a melt of a borate salt K1A, and adding a solution of an ammonium or phosphonium salt KA1 in a solvent or solvent mixture (i), wherein K is an organic ammonium or phosphonium cation, and A is a borate anion of formula (Ia) or (Ib).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.