Patent ID: 6011082
Filing Date: 2000-01-04
Classification: A61L,C08J,G02B,Y10S,Y10T

Abstract:
A process for producing an ocular lens by modifying the surface of a polymer substrate to provide a semi-interpenetrating polymer network therein suitable for coupling with a surface modification agent, said process comprising the steps of:absorbing a swelling monomer into the surface of a silicon polymer substrate to swell said silicon polymer substrate surface;polymerizing said absorbed swelling monomer within said polymer substrate surface to produce an semi-interpenetrating network of polymerized swelling monomer having free ends including reactive functional groups extending from said surface wherein said swelling monomer is selected from the group consisting of: reactive functional acrylamindes, substituted reactive functional acrylamides, reactive functional acrylates, substituted reactive functional acrylates, reactive functional allyl crosslinkers, and reactive functional vinyl crosslinkers;bonding a surface modification agent to said extending functional groups.