RESIN COMPOSITION AND ARTICLES MOLDED THEREFROM

摘要

A resin composition having a high refractive index and a low dispersion, which is composed of carbonate residues, phosphonic acid residues of the structural formula (1), and divalent phenol residues of the structural formula (2), with the molar fractions of phosphonic acid residues and carbonate residues satisfying the relationship (3): (1) (2) (a)/[(a)+(b)]>/=0.5 (3) [wherein (a) is the number of moles of phosphonic acid residues, and (b) is that of carbonate residues].