Abstract

A polymerizable liquid composition including semi-conductive nanoparticles for the manufacture of ophthalmic lenses. Specifically, polymerizable composition has at least one monomer or oligomer; at least one catalyst for initiating the polymerization of the monomer or oligomer; and semi-conductive nanoparticles, which are dispersed in the monomer or oligomer. The absorbance through a 2-millimeter-thick layer of the polymerizable composition is higher than 0.5 for each light wavelength ranging from 350 to λcut, λcut being in the visible range, preferably in the range from 400 nm to 480 nm.

IPC Classes  ?

• G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
• C08F 20/28 - Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
• C08F 18/24 - Esters of carbonic or haloformic acids
• C08G 77/18 - Polysiloxanes containing silicon bound to oxygen-containing groups to alkoxy or aryloxy groups
• C08K 9/02 - Ingredients treated with inorganic substances
• C08K 9/04 - Ingredients treated with organic substances