Optical material

Details Optical material Optical material

C - Chemistry, Metallurgy

08

F

C08F 222/40 (2006.01) B29D 11/00 (2006.01) C08F 210/00 (2006.01) G02B 1/04 (2006.01) C08F 210/02 (2006.01)

Patent

CA 2049439

An optical material, comprising a resin composed of a polymer constituted of 10 of 95 mol %, based on the polymer, of a first structural unit represented by the formula (I) and 90 to 5 mol %, based on the polymer, of a second structural unit represented by the formula (II), and having a weight-average molecular weight of from 1 x 3 to 5 x 10 6 in polystyrene equivalent: (see formula 1) The optical material has a Tg value not less than 120°C, a light transmittance value not less than 85 %, and a pencil hardness not lower than H.

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