Ionic hydrogels with controlled aqueous fluid absorption
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United States of America Patent
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Issued Date -
Mar 30, 2006
app pub date -
May 20, 2003
filing date -
May 20, 2002
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Abstract
A cross-linked plasticised polymeric hydrogel suitable for use in mammalian body tissue (e.g. skin) contacting applications, which comprises a cross-linked copolymer formed from a first monomer comprising one or more pendant anionic group and a second monomer comprising one or more pendant cationic group, the relative amounts of the said monomers in the copolymer being such that the anionic groups and cationic groups are present in essentially equimolar quantities.
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