Polyurethan Zusammensetzung für schlagfeste optische Linsen

摘要

An impact strength synthetic resin lens is provided in which transparency of a synthetic resin lens material of a polyurethane and releasability are improved to improve productivity and no stria are produced. The impact strength synthetic resin lens is manufactured by casting and curing a polyurethane resin composition which a polyurethane resin composition for molding optical lenses, comprising, as essential components, a prepolymer obtained by reacting an alicyclic polyisocyate having two or more isocyanate groups with a polyol having two or more hydroxy groups, an internal mold lubricant and a decolored aromatic diamine.