PLASTIC LENS MATERIAL, PLASTIC LENS COMPOSITION, PLASTIC LENS OBTAINED BY CURING THE COMPOSITION AND PROCESS FOR PRODUCING THE PLASTIC LENS

摘要

A plastic lens material comprising at least one group having formula (1) as a terminal group and a group having formula (2) as a repeating unit wherein each R<1> independently represents an allyl group or a methallyl group and each A<1> is an independent organic residue and represents one or more organic residues derived from a divalent carboxylic acid or dicarboxylic anhydride having an alicyclic structure and/or an aromatic ring structure; wherein each A<2> is an independent organic residue and represents one or more organic residues derived from a divalent carboxylic acid or dicarboxylic anhydride having an alicyclic structure and/or an aromatic ring structure, and each X is an independent organic residue and represents one or more organic residues derived from a polyhydric alcohol having an ether bond within the molecule, provided that X can further have a branched structure having a group of formula (1) as a terminal group and a group of formula (2) as a repeating unit.