METHOD OF PLASTICIZING AND DENSIFYING HYDROPHILIC POLYMERIC BIOMATERIALS AND HYDROPHILIC POLYMERIC BIOMATERIALS
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United States of America Patent
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Issued Date -
Jun 16, 2022
app pub date -
May 18, 2020
filing date -
May 18, 2020
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Abstract
The present invention relates to a method of plasticizing and densifying hydrophilic polymeric biomaterial, said hydrophilic polymeric biomaterial having at least one surface, comprising the steps of softening the surface of the hydrophilic polymeric biomaterial to be compressed; compressing the hydrophilic polymeric biomaterial by applying an elevated pressure onto the softened surface of said hydrophilic polymeric biomaterial at an elevated temperature for a predetermined period of time; decreasing the temperature and thereafter the pressure applied to the hydrophilic polymeric biomaterial; wherein a plasticizing liquid is added to said surface of the hydrophilic polymeric biomaterial to be densified, the plasticizing liquid being a non-imidazolium-based ionic liquid (IL), an organic superbase or a Deep Eutectic Solvent (DES).
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