Esterified polysaccharide products and &bgr;-lactone ring opened ketene dimer products containing the compositions, and process of making the same
US6624298B2 · kind B2 · utility
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2References
32Claims
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Key dates
| Filing date | Feb 6, 2002 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Feb 6, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/0096
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Esterified polysaccharides and the process of making such products are disclosed. The process can be enzymatic where an enzyme is used as a catalyst for the reaction. The process can also be chemical where no enzyme is used. Novel Products are obtained through lipase-catalyzed &bgr;-lactone ring opening alcoholysis of ketene dimers and the process of making such compositions containing products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.