Shaped article and processes for its preparation
US4772419A · kind A · utility
106Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1986 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Feb 21, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/0072
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A shaped article based upon cross-linked, possibly derivatized hyaluronic acid or a salt thereof is characterized in that it has a dry matter content of at least 65 percent by weight and a tensile strength of at least 2 N/cm.sup.2. The shaped article may be prepared by pressure-drying or freeze-drying a corresponding hyaluronic acid gel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.