Transparent plastic substrate and plastic lens

Abstract

To provide a transparent plastic substrate having a high cut rate of blue light, a plastic lens and a transparent plastic member. A transparent plastic substrate containing a benzotriazole compound represented by the formula (1), a plastic lens containing the transparent plastic substrate, and a transparent plastic member containing a benzotriazole compound represented by the formula (1).

1 . A transparent plastic substrate comprising a benzotriazole compound represented by the following formula (1): 
       
         
           
           
               
               
           
         
       
       wherein R 1  represents an alkyl group having from 1 to 3 carbon atoms or an alkoxy group having from 1 to 3 carbon atoms; m represents an integer of 0 or 1; R 2  represents an alkyl group having from 1 to 12 carbon atoms or an alkoxy group having from 1 to 12 carbon atoms; R 3  represents a hydrogen atom or a divalent hydrocarbon group having from 1 to 8 carbon atoms; n represents a valence of the group represented by R 3 , which is 1 or 2, provided that in the case where m is 1, R 1  and R 2  may be the same as or different from each other; and X represents a group imparting a mesomeric effect. 
     
     
         2 . The transparent plastic substrate according to  claim 1 , wherein X in the benzotriazole compound is at least one selected from the group consisting of a chlorine atom, a bromine atom, a fluorine atom, an iodine atom, a sulfo group, a carboxyl group, a nitrile group, an alkoxy group, a hydroxyl group and an amino group. 
     
     
         3 . The transparent plastic substrate according to  claim 1 , wherein the benzotriazole compound is represented by the following general formula (1-1): 
       
         
           
           
               
               
           
         
       
       wherein R 1  represents an alkyl group having from 1 to 3 carbon atoms or an alkoxy group having from 1 to 3 carbon atoms; m represents an integer of 0 or 1; and R 2  represents an alkyl group having from 1 to 12 carbon atoms or an alkoxy group having from 1 to 12 carbon atoms, provided that in the case where m is 1, R 1  and R 2  may be the same as or different from each other. 
     
     
         4 . The transparent plastic substrate according to  claim 1 , wherein the transparent plastic substrate contains the benzotriazole compound in an amount in a range of from 0.05 to 3.00 parts by mass per 100 parts by mass of a resin component comprising the transparent plastic substrate. 
     
     
         5 . The transparent plastic substrate according to  claim 1 , wherein the benzotriazole compound is at least one selected from 2-(3-tert-butyl-2-hydroxy-5-methylphenyl)-5-chloro-2H-benzotriazole, 2-(3-tert-butyl-2-hydroxy-5-ethylphenyl)-5-chloro-2H-benzotriazole, 2-(4-ethoxy-2-hydroxyphenyl)-5-chloro-2H-benzotriazole and 2-(4-butoxy-2-hydroxyphenyl)-5-chloro-2H-benzotriazole. 
     
     
         6 . The transparent plastic substrate according to  claim 1 , wherein the transparent plastic substrate has a cut rate of light in a wavelength range of from 380 to 500 nm of 35% or more. 
     
     
         7 . The transparent plastic substrate according to  claim 1 , wherein the transparent plastic substrate has a cut rate of light having a wavelength of 410 nm of 50% or more. 
     
     
         8 . The transparent plastic substrate according to  claim 1 , wherein a resin component constituting the transparent plastic substrate is at least one selected from the group consisting of a (thio)urethane resin, an episulfide resin, a polycarbonate resin, a polyamide resin, an acrylic resin, a vinyl resin and a polyester resin. 
     
     
         9 . A plastic lens comprising the transparent plastic substrate according to  claim 1 . 
     
     
         10 . The plastic lens comprising the transparent plastic substrate according to  claim 9 , wherein a resin component constituting the transparent plastic substrate is a (thio)urethane resin and/or an episulfide resin. 
     
     
         11 . The plastic lens according to  claim 10 , wherein a monomer forming the transparent plastic substrate is a combination of an aliphatic polyisocyanate compound and/or an alicyclic polyisocyanate compound, and a polythiol compound. 
     
     
         12 . A transparent plastic member comprising a benzotriazole compound represented by the following formula (1): 
       
         
           
           
               
               
           
         
       
       wherein R 1  represents an alkyl group having from 1 to 3 carbon atoms or an alkoxy group having from 1 to 3 carbon atoms; m represents an integer of 0 or 1; R 2  represents an alkyl group having from 1 to 12 carbon atoms or an alkoxy group having from 1 to 12 carbon atoms; R 3  represents a hydrogen atom or a divalent hydrocarbon group having from 1 to 8 carbon atoms; n represents a valence of the group represented by R 3 , which is 1 or 2, provided that in the case where m is 1, R 1  and R 2  may be the same as or different from each other; and X represents a group imparting a mesomeric effect. 
     
     
         13 . The transparent plastic member according to  claim 12 , wherein a transparent plastic member comprises a transparent plastic substrate and a functional layer, and the benzotriazole compound represented by the formula (1) is contained in any of the transparent plastic substrate and the functional layer.