Urea and urethane monomers for contact lens materials

Details Urea and urethane monomers for contact lens materials Urea and urethane monomers for contact lens materials

C - Chemistry, Metallurgy

07

C

C07C 271/08 (2006.01) B29D 11/00 (2006.01) C07C 271/20 (2006.01) C07C 271/24 (2006.01) C07C 275/26 (2006.01) C08F 20/36 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2178196

Urea- and urethane-containing monomers selected from compounds of general formula (I) or (II), wherein each X is independently -O- or -NH-, for contact lens materials are disclosed.

L'invention concerne des monomères contenant de l'urée et de l'uréthane sélectionnés parmi des composés des formules générales (I) ou (II) dans lesquelles chaque X représente indépendamment -O- ou -NH-; ces monomères étant utilisés dans des matériaux pour lentilles de contact.

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