Plastic lens and production process thereof

Details Plastic lens and production process thereof Plastic lens and production process thereof

C - Chemistry, Metallurgy

08

F

C08F 220/28 (2006.01) C08F 20/62 (2006.01) C08F 222/10 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2188915

Disclosed is a plastic lens formed of a crosslinked polymer obtained by polymerizing or copolymerizing a monomer composition comprising as essential component the following component (A) and/or the following component (B), and optionally a component (C) composed of at least one monomer copolymerizable with the essential component comprising the component (A) and/or the component (B): Component (A): an ester obtained from (1)(a) a diol which is obtained by reducing a dimer of an unsaturated fatty acid having 16- 18 carbon atoms and/or (b) a diol which is obtained by reducing a dimer of a lower alcohol ester of an unsaturated fatty acid having 16-18 carbon atoms, and (2) acrylic acid or methacrylic acid; and Component (B): an ester obtained from (1)(a) a triol which is obtained by reducing a trimer of an unsaturated fatty acid having 16-18 carbon atoms and/or (b) a triol which is obtained by reducing a trimer of a lower alcohol ester of an unsaturated fatty acid having 16-18 carbon atoms, and (2) acrylic acid or methacrylic acid. The plastic lens is high in density of crosslinking and low in specific gravity and has good optical properties.

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