Crosslinking of hyaluronan solutions and nanofiberous membranes made therefrom
US7323425B2 · kind B2 · utility
6Cited by
2References
2Claims
0Family size
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Key dates
| Filing date | Aug 27, 2004 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | May 16, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/607
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for producing a non-chemically crosslinked hyaluronan is provided which involves contacting a sample of hyaluronan with an acidic solvent/water mixture for a period of time and at a temperature sufficient to effect crosslinking, wherein the acidic solvent/water mixture has a content of a solvent sufficient to prevent dissolution of said hyaluronan and wherein the solvent is miscible with water, and an amount of an acid sufficient to effect crosslinking of the hyaluronan, and the crosslinked, water resistant non-woven hyaluronan resulting therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.