Composition for plastic lenses.

摘要

Disclosed is a composition comprising (A) 10 to 60 parts by weight of a polybutylene glycol di(meth)acrylate represented by the general formula (I): <CHEM> (B) 20 to 80 parts by weight of a specific urethane poly(meth)acrylate or epoxy poly(meth)acrylate, (C) 5 to 60 parts by weight of a specific mono(meth)acrylate, and (D) 0 to 60 parts by weight of a compound having at least one polymerizable double bond in the molecule, with the total amount of components (A), (B), (C) and (D) being 100 parts by weight. This composition is suitable for the making of plastic lenses because of its excellent properties such as high thermal resistance, high imapct resistance, good dyeability, low water absorption and high surface accuracy.