Polymerizable siloxane-quaternary amine copolymers

Details Polymerizable siloxane-quaternary amine copolymers Polymerizable siloxane-quaternary amine copolymers

C - Chemistry, Metallurgy

08

G

C08G 77/452 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2652075

The present invention relates to polymeric compositions useful in the manufacture of biocompatible medical devices. More particularly, the present invention relates to certain cationic monomers capable of polymerization to form polymeric compositions having desirable physical characteristics useful in the manufacture of ophthalmic devices. Such properties include the ability to extract the polymerized medical devices with water. This avoids the use of organic solvents as is typical in the art. The polymer compositions comprise polymerized silicon-containing monomers end-capped with polymerizable cationic hydrophilic groups.

L'invention concerne des compositions polymères utilisées dans la fabrication de dispositifs médicaux biocompatibles. L'invention concerne, en particulier, certains monomères cationiques pouvant être polymérisés de manière à former des compositions polymères présentant des caractéristiques physiques souhaitées, utilisées dans la fabrication de dispositifs ophtalmiques. Lesdites propriétés comprennent la possibilité d'extraire les dispositifs médicaux polymérisés avec de l'eau. Cela évite l'utilisation de solvants organiques utilisés dans la technique antérieure. Les compositions polymères comprennent des monomères polymérisés contenant du silicium, à extrémité coiffée par des groupes pouvant être polymérisés, cationiques et hydrophiles.

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