Coated article

Abstract

To provide a plastic spectacle lens which has a very durable hard coat layer and primer layer and prevents the cracking and peeling off of the layer and a reduction in the hardness of the layer, and other coated articles. This coated article has a coat layer containing titanium oxide and an organic Co(II)compound on the surface of a substrate.

1 . A plastic lens comprising a plastic lens substrate having a refractive index of 1.50 or more, a primer layer which is formed on the surface of the substrate, and a hard coat layer which is formed on the surface of the primer layer and comprises a silicon resin as a resin component, the primer layer comprising: 
 (1) 2 to 70 wt % of titanium oxide or a composite oxide thereof having a particle diameter of 1.0 to 100 nm, the titanium oxide containing at least one titanium oxide selected from the group consisting of rutile type titanium oxide and anatase type titanium oxide in an amount of 50 wt % or more;    (2) 1 to 10 wt % of a chelate compound or fatty acid salt containing Co(II); and    (3) 20 to 97.9 wt % of an urethane resin, and having a refractive index of 1.48 or more and a thickness of 0.5 to 5 μm, the weight percentages of the above components (1), (2) and (3) being based on 100 wt % of the total weight of the components (1), (2) and (3).    
     
     
         2 . The plastic lens of  claim 1  which further has an anti-reflection layer on the exterior surface of the hard coat layer.  
     
     
         3 . The plastic lens of  claim 1 , wherein the primer layer has been formed from a solution composition comprising: 
 (1) 2 to 70 wt % of titanium oxide or a composite oxide thereof having a particle diameter of 1.0 to 100 nm, the titanium oxide containing at least one titanium oxide selected from the group consisting of rutile type titanium oxide and anatase type titanium oxide in an amount of 50 wt % or more;    (2) 1 to 10 wt % of a chelate compound or fatty acid salt containing Co(II);    (3) 10 to 87.9 wt % of a polyol; and    (4) 10 to 87.9 wt % of a polyisocyante, the weight percentages of the above components (1), (2), (3) and (4) being based on 100% of the total weight of all the above components