Method of preparing a concentrated solution of a polyglucosamine
US6972285B2 · kind B2 · utility
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3References
20Claims
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Key dates
| Filing date | Apr 29, 2002 |
| Grant date | Dec 6, 2005 |
| Priority date | — |
| Expiry date | Jan 25, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/003
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A concentrated solution of a polyglucosamine such as chitin or chitosan is prepared by forming an aqueous slurry of said polyglucosamine with a peroxide, and adding copper ion to said slurry so as to solubulize said polyglucosamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.