Patent ID: 9492951
Filing Date: 2016-11-15
CPC Classification: A45C,B29C,B29D,B29K,B29L,B65D,C08L,G02B,G02C

Claim Text:
1. A method of manufacturing an ophthalmic device, comprising: (a) providing at least one unmodified water-soluble vinyl alcohol copolymer and wherein the at least one unmodified water-soluble vinyl alcohol copolymer is a vinyl alcohol copolymer essentially free of ethylene units; (b) using the at least one unmodified water-soluble vinyl alcohol copolymer to form at least one of a first mold member and a second mold member, the first mold member comprising a molding surface configured to mold an anterior surface of the ophthalmic device and the second mold member comprising a molding surface configured to mold a posterior surface of an ophthalmic device, the first mold member and the second mold member configured to form an ophthalmic device-shaped cavity therebetween when combined as a mold assembly; (c) placing a polymerizable composition comprising at least one hydrophilic monomer in the first mold member or the second mold member; (d) assembling the mold assembly by contacting the first mold member and the second mold member so as to form the ophthalmic device-shaped cavity therebetween with the polymerizable composition contained in the ophthalmic device-shaped cavity of the mold assembly; and (e) curing the polymerizable composition in the mold assembly to form a cast-molded polymerized reaction product in the ophthalmic device-shaped cavity of the mold assembly, the polymerized reaction product comprising a polymeric ophthalmic device body.