Process for making water-soluble derivatives of quinones
US5728898A · kind A · utility
2Cited by
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7Claims
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Key dates
| Filing date | Jun 27, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Jun 27, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2602/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for making water-soluble hydroquinone salts by reacting an aqueous liquid solution of (a) a formamidinesulfinic acid and (b) an alkali metal or quaternary ammonium hydroxide in which is dispersed a (c) quinone and water-soluble hydroquinone salts made thereby.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.