Isoidide manufacture and purification
US10100376B2 · kind B2 · utility
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3Claims
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Key dates
| Filing date | Feb 19, 2016 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Feb 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods are provided for the purification of isoidide. The methods comprise subjecting an at least partially deionized isoidide composition comprising isoidide and other isohexides to chromatographic separation of isoidide from other isohexides, removal of solvent from the isoidide, and crystallization of the isoidide. Isoidide of monomer-grade purity is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.