Ionic hydrogels with controlled aqueous fluid absorption

Details Ionic hydrogels with controlled aqueous fluid absorption Ionic hydrogels with controlled aqueous fluid absorption

A - Human Necessities

61

L

A61L 15/60 (2006.01) A61L 15/42 (2006.01) A61L 15/58 (2006.01) A61L 24/00 (2006.01) A61L 26/00 (2006.01)

Patent

CA 2486639

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.

L'invention concerne un hydrogel polymère plastifié, réticulé, destiné à être utilisé dans des application dans lesquelles il y a un contact avec un tissu organique (la peau, par exemple) d'un mammifère. Cet hydrogel contient un copolymère réticulé composé d'un premier monomère comprenant un ou plusieurs groupes anioniques latéraux et d'un second monomère comprenant un ou plusieurs groupes cationiques latéraux, la teneur relative en monomères du copolymère étant dosée de façon que les groupes anioniques et les groupes cationiques soient présents en quantités sensiblement équimolaires.

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