| abstract |
To provide a transparent plastic substrate having a high cut rate of blue light, a plastic lens and a transparent plastic member, the invention provides a transparent plastic substrate comprising(i) a resin component constituting the transparent plastic substrate, selected from a thiourethane resin formed of a combination of a polythiol compound containing 1,2-bis(2-mercaptoethylthio)-3-mercaptopropane and a polyisocyanate compound containing an alicyclic isocyanate, provided that isophorone diisocyanate is excluded; and(ii) 0.10-2.00 parts by mass, per 100 parts by mass of the resin component constituting the transparent plastic substrate, of a benzotriazole compound of the formula (1-1):wherein R<sub>1</sub> is C<sub>1-3</sub>-alkyl or C<sub>1-3</sub>-alkoxy, m is 0 or 1, and R<sub>2</sub> is C<sub>1-12</sub>-alkyl or C<sub>1-12</sub>-alkoxy.Also provided is a plastic lens comprising the above transparent plastic substrate. |