| abstract |
(A) Formula (I)n n n n n n n n 10 to 60 parts by weight of polybutylene glycol di (meth) acrylate represented byn n n (B) 20 to 80 parts by weight of a specific urethane poly (meth) acrylate or epoxy poly (meth) acrylaten n n (C) 5 to 60 parts by weight of specific mono (meth) acrylaten n n (D) 0 to 60 parts by weight of a compound having at least one polymerizable double bond in the moleculen n n A composition suitable for use in plastic lenses for use in various respects, including heat resistance, impact resistance, dyeing property, low water absorption, surface precision, and the like as the main component (the total of (A) to (D) components is 100 parts by weight). |