| abstract |
The polymerizable composition for an optical material of the present invention comprises (A) at least one isocyanate having two or more isocyanato groups, which comprises an aromatic isocyanate, (B) at least one alcohol having two or more hydroxyl groups, (C) an acidic phosphate ester represented by the following general formula (1), and (D) a benzotriazole-based compound, wherein the total amount of hydroxyl groups of the primary hydroxyl group and the secondary hydroxyl group contained in the alcohol (B) And the benzotriazole compound (D) is contained in an amount of 1 to 11 parts by weight based on 100 parts by weight of the total of the isocyanate (A) and the alcohol (B). |