Shaped article and processes for its preparation
AssigneePharmacia Corporation
InventorsTomas Malson, Leif G. Ahrgren, Anthony N. de Belder
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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.
Claims14
A shaped article based upon cross-linked, possibly derivatized hyaluronic acid or a salt thereof, which in a substantially unswollen water-swellable state has a dry matter content of at least 65 percent by weight and a tensile strength greater than 100 N/cm.sup.2.
Dependencies are inferred from the claim text.