Process for the production of lens molds manufacturing systems and process for the continuous or semi-continuous production of soft contact lens blocks processes for the preparation of soft contact lens blocks and process for maintaining oxygen levels

摘要

The present invention provides a process for providing essentially fully degassed complementary concave and convex lens molds to filling and mold assembly stations, respectively, in a continuous or semicontinuous automated soft contact lens manufacturing system comprising injection molding said lens molds, immediately transferring said lens molds to an inert gas atmosphere, degassing said lens molds, and filling said lens molds with a polymerizable monomer under said inert gas prior to mold assembly. IMAGE