Additives for improved isohexide products
US9266900B2 · kind B2 · utility
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1References
17Claims
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Key dates
| Filing date | Oct 4, 2013 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Oct 4, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/34
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Reduced color and improved color stability isohexide products are enabled through adding one or more antioxidants to a crude dehydration product mixture from an acid-catalyzed dehydration of a corresponding hexitol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.