Patent ID: 9529119
Filing Date: 2016-12-27
CPC Classification: B29C,B29D,B29K,B29L,C08F,G02B,G02C

Claim Text:
1. A method for fabricating a silicone-containing copolymer molded article comprising a silicone monomer unit, hydrophilic monomer unit, and crosslinking monomer unit, and having a hydrophilic surface; by polymerizing a monomer solution containing (a) at least one silicone monomer comprising a (meth)acryloyl group; (b) at least one hydrophilic monomer comprising a vinyl group; (c) at least one crosslinkable monomer; and (d) at least one polymerization initiator; in a cavity of a mold having a hydrophobic cavity surface; wherein the polymerization initiator has a 10-hour half-life temperature (abbreviated to T10 hereinafter) of 70° C. or higher and 100° C. or lower, and the polymerization is conducted by means of a step P1 of maintaining a temperature within a range of from the T10 of the polymerization initiator contained in the monomer solution to 35° C. below T10 for one hour or more; and a step P2 of maintaining a temperature higher than the T10 of the polymerization initiator contained in the monomer solution for one hour or more.