C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 77/04 (2006.01) C08G 77/26 (2006.01) C08G 77/388 (2006.01) C08G 77/46 (2006.01) G02B 1/04 (2006.01)
Patent
CA 2634241
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.
La présente invention concerne des formules polymères pouvant être employées dans la fabrication de dispositifs médicaux biocompatibles. Plus particulièrement, la présente invention concerne certains monomères cationiques susceptibles de polymériser pour former des préparations polymères présentant des caractéristiques physiques recherchées et utiles à la fabrication de dispositifs ophtalmiques. De telles propriétés incluent la capacité à extraire les dispositifs médicaux polymérisés avec de l'eau. Ceci évite l'emploi de solvants organiques décrits dans la littérature. Les formules polymères comprennent des monomères polymérisés contenant du silicium coiffés de groupements hydrophiles cationiques polymérisables.
Kunzler Jay
Linhardt Jeffrey G.
Salamone Joseph C.
Schorzman Derek
Bausch & Lomb Incorporated
Osler Hoskin & Harcourt Llp
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