Highly refractive copolymer for lens and a lens prepared...

Details Highly refractive copolymer for lens and a lens prepared... Highly refractive copolymer for lens and a lens prepared...

C - Chemistry, Metallurgy

08

F

402/347, 402/404

C08F 220/20 (2006.01) B29C 33/00 (2006.01) C08F 212/04 (2006.01) C08F 220/10 (2006.01) C08F 220/30 (2006.01) G02B 1/04 (2006.01)

Patent

CA 1150898

ABSTRACT OF THE DISCLOSURE The present invention relates to a copolymer for high refractive lenses having a refractive index equal to or higher than 1.55, obtained by copolymerization of one or more of a first monomer component having the formula (I) Image (I) wherein R1 signifies hydrogen atom or methyl radical, R2 signifies hydrogen atom or methyl radical, and m and n signify integers 0 to 4 in total, with one or more of a radically polymerizable second monomer component, the homo-polymer of which has a refractive index equal to or higher than 1.55 and, if necessary, with a radically polymerizable third monomer component, the homo-polymer of which has a refractive index lower than 1.55 and to the lenses prepared from said copolymer.

331448

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