Silicone pseudogel

Details Silicone pseudogel Silicone pseudogel

C - Chemistry, Metallurgy

08

L

C08L 83/04 (2006.01) A61L 27/18 (2006.01) C08L 83/07 (2006.01)

Patent

CA 2240163

A silicon gel-like material having a reduced content of extractable silicone fluid and having rheological properties approximating human tissue. The gel- like material or "pseudogel" is useful for filling an implantable prosthesis. The present filler material or pseudogel is produced by controlling the cross- linking of the silicone polymer network such that every polymer chain contains only terminal vinyl groups but not all of the reactive groups participate in the cross-linking reaction.

L'invention concerne un matériau de type gel de silicone à contenu réduit en fluide de silicone extractible, dont les propriétés rhéologiques équivalent approximativement à celles du tissu humain. Le matériau de type gel ou "pseudogel" peut être utilisé pour le remplissage d'une prothèse implantable. On fabrique cette matière d'apport, ou "pseudogel", en contrôlant la polymérisation du réseau polymère de silicone de sorte que chaque chaîne polymère contienne uniquement les groupes vinyle terminaux sans renfermer les groupes réactifs qui participent à la réaction de polymérisation.

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