OXYGEN-PERMEABLE TRANSPARENT POLYMER COMPOSITIONS FOR CONTACT LENSES OF THE RIGID TYPE

摘要

An oxygen-permeable transparent polymer composition for contact lenses of the rigid type comprises at least a first constituent having ethylene double bonds of the type which is polymerizable in a rigid matrix, and a second constituent formed by a silane monomer containing at least two silyl -SiH groups per molecule. The composition can include a third constituent of the polyorganosiloxysilane type.