CURABLE COMPOSITION

摘要

A curable composition which comprises 1 to 50 parts by weight of an inorganic compound (A) having a sulfur or selenium atom and 50 to 99 parts by weight of a compound (B) represented by the general formula (1): [wherein m is an integer of 0 to 4; and n is an integer of 0 to 2] (with the proviso that the total amount of the compounds (A) and (B) is 100 parts by weight) and which further contains at least one compound (C) selected from the group consisting of thiol compounds each having one SH group and disulfide compounds (except the compound (B)) each having one or more disulfide linkages in an amount of 1 to 20 parts by weight per 100 parts by weight of the total amount of the compounds (A) and (B). The curable composition little causes viscosity increase in prepolymerization or deaeration, and can be therefore cast-polymerized by easy operation into optical elements and so on.