CONTACT LENS MATERIAL

• Main Authors: Morrison Peter W J, Courtis Andrew
• Format: Patent
• Language: English
• Published: 22.06.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; CONTACT LENSES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention relates to a method of manufacturing a contact lens material comprising: (i) providing a composition comprising: a tris(siloxy)silyl group-containing monomer and/or a tetrakis(siloxy)disiloxane monomer; and a polymeric monomer having the formula: (I) wherein R = H, alkyl or aryl; R1 = H or alkyl; x can be 0 if y is an integer; and y can be 0 if x is an integer; and (ii) curing the composition.