HARD COATING SOLUTIONS FOR PLASTIC LENS AND PREPARATION METHOD THEREOF

摘要

A method for manufacturing a hard coating solution for a plastic lens, and the hard coating solution for a plastic lens prepared by the method are provided to obtain a high refractive index, an excellent surface hardness, an excellent adhesion and a high transmissivity. A method for manufacturing a hard coating solution for a plastic lens comprises the steps of reacting a titanium alkoxide and water in an alcohol solvent to prepare a titania nanosol in which the anatase or rutile nanoparticle having an average particle diameter of 1 ~ 50 nm is dispersed; and mixing a silane coupling agent, an alcohol and water with the nanosol to react them for 10 hours or more, thereby preparing a homogeneous solution.