Method for preparing pentaerythritol phosphate alcohol by mechanochemical synthesis
US6833467B2 · kind B2 · utility
1Cited by
4References
8Claims
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Key dates
| Filing date | Nov 12, 2002 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Jul 10, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/657145
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Mechanochemical synthesis of pentaerythritol phosphate alcohol is disclosed. The synthesis is carried out by ball milling a mixture containing P2O5, pentaerythritol, an alkyl benzene having one or two C1-C5 alkyl groups, and a metal halide catalyst, in a ball mill as a reactor and at a temperature of 70-150° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.