Solvent used for dissolving polysaccharide and method for manufacturing molded article and polysaccharide derivative using this solvent
US9200085B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Mar 22, 2012 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Mar 22, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2301/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is provided a solvent that can uniformly dissolve a polysaccharide within a short time period regardless of the crystal form of the polysaccharide and without requiring any special pretreatment. The solvent includes a tetraalkylammonium acetate represented by the below-indicated formula; and an aprotic polar solvent. A content of the aprotic polar solvent is 35 wt % or more.In the formula, R1, R2, R3, and R4 each independently represent an alkyl group having 3 to 6 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.