| 摘要 |
<p>Oxygen-permeable contact lens comprising a polymer having a polyorganosiloxane skeleton and a three-dimensional crosslinkage structure, the polymer having the structural units of (A) a tri-functional isocyanato residue, (B) a residue of at least one compound selected from among an unsaturated carboxylic acid, an alkyl ester of an unsaturated carboxylic acid, a hydroxyalkyl ester of an unsaturated carboxylic acid, methacrylamide, a vinyl ether, and a styrene derivative, (C) a polydimethylsiloxane residue modified with a functional group having active hydrogen, and (D) a residue of at least one compound selected from among an alkyl (meth)acrylate, a fluorine-containing (meth)acrylate, a (meth)acrylate having alicyclic hydrocarbyl residue, an aryl (meth)acrylate, a halogen-containing aryl (meth)acrylate, styrene and its derivative, and an alkyl ester of an unsaturated carboxylic acid, and a process for producing the lens.</p> |
