Thermally crosslinked poly(glucuronic acid)-chitosan films with high oxygen and water vapor barrier properties
US12351664B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Sep 30, 2020 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Jul 4, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W90/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are films and materials comprising poly(alkylene glycol)-chitosan and/or chitin-poly(glucuronic acid) and chitosan and/or chitin-poly(glucuronic acid). Methods of making such films, particularly involving thermally crosslinking poly(glucuronic acid) with chitosan, are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.