PROCEDE DE POLYMERISATION ET/OU DURCISSEMENT D'UNE COMPOSITION DE MONOMERES ET APPLICATION A LA FABRICATION DE LENTILLES

摘要

The invention concerns a method which consists in providing a composition of polymerisable monomers in the cavity of a mould with two parts assembled by an adhesive tape, in carrying out a first step which consists in pre-polymerising the composition until a self-supporting gel is obtained without allowing the adhesive tape to lose its adhesive properties, and a step which consists in post-polymerising the gel by applying a UV radiation or by heat treatment for simultaneously causing the tape to lose its adhesive properties depending on whether the adhesive tape loses its adhesive properties under the action of UV radiation or under the action of the heat. The invention is useful for making ophthalmic lenses.