公开(公告)号：JPH0641336A

公开(公告)日：1994-02-15

申请号：JP19692992

申请日：1992-07-23

Applicant: TORAY INDUSTRIES

Inventor： ITO SHIN ,  YOKOTA MITSURU

IPC: A61L27/00 ,  C07F7/02 ,  C08F8/00 ,  C08F20/10 ,  C08F30/08 ,  C08F220/12 ,  C08F230/08 ,  C08G77/38 ,  C08J7/12 ,  G02B1/04 ,  G02C7/04

Abstract: PURPOSE:To obtain the formed article having excellent hardness, rigidity, transparency, gas-permeability, hydrophilicity and water-wettability and useful for contact lens, etc., by immersing a formed plastic article containing Si atom in an alkaline solution. CONSTITUTION:The formed article having an oxygen permeability constant of 10X10 cm (STP)cm/cm .sec.mmHg or higher is produced by immersing a formed plastic article containing silicon atom, e.g. a copolymer of a siloxane compound having double bond [e.g. tris(trimethylsiloxy)silylpropyl methacrylate] and a compound having (meth)acryloyl group [e.g. methyl (meth)acrylate] in an alkaline solution such as an aqueous solution of sodium hydroxide.

公开(公告)号：JPS6420208A

公开(公告)日：1989-01-24

申请号：JP17681187

申请日：1987-07-14

Applicant: TORAY INDUSTRIES

Inventor： ITO SHIN

IPC: C08F6/08 ,  C08F6/00 ,  C08F38/00 ,  C08G85/00

Abstract: PURPOSE:To produce a highly pure high-molecular compound which has a very low catalyst residue content and can be used for, e.g., biomedical use, by treating a high-molecular compound made by using a Lewis acid catalyst with water and a base after polymerization. CONSTITUTION:In the solution polymerization of a high-molecular compound (e.g., acetylene polymer) made by using a Lewis acid catalyst, the high-molecular compound is purified by treatment with water and a base (e.g., triethylamine) after polymerization. It is possible to obtain a highly pure high-molecular compound which is remarkably low in a catalyst residue content and can be applied to products applicable to living body such as contact lenses and artificial blood vessels.