Manufacture of soft contact lens

Abstract

Abstract PURPOSE:To obtain the titled lens having a high water content and superior strength by mixing alkoxy polyethylene glycol mono(meth)acrylate with a specified monomer and/or a post-cross-linkable polymer and an org. solvent, and polymerizing and molding the mixture. CONSTITUTION:Alkoxy polyethylene glycol mono(meth)acrylate (A) represented by the formula (where (n) is >=4, R1 is H or methyl, and R2 is 1-4C alkoxy) is mixed with one or more kinds of monomers (B) selected from alkyl esters of (meth)acrylic acid such as methyl acrylate and/or a post-cross-linkable polymer (B) contg. said monomer as one of the constituent components and having polymerizable double bonds in the molecule and an org. solvent (C) so as to regulate the polymn. ratio of A:B to 95:5-10:90 and the content of the component C to 5-90wt%. The mixture is polymerized, and simultaneously it is molded to obtain the desired soft contact lens.

Inventors

• 👤 Mitsuru Yokota
• 👤 満 横田
• 👤 Hiroko Fujino
• 👤 藤野　裕子
• 👤 Shuji Fujioka
• 👤 藤岡　修二

Bibliographic Details