METHOD FOR FABRICATING SILICONE-CONTAINING COPOLYMER MOLDED ARTICLE HAVING HYDROPHILIC SURFACE AND SILICONE-HYDROGEL CONTACT LENS HAVING HYDROPHILIC SURFACE

A method permits the fabrication of a silicone-containing copolymer molded article having a hydrophilic surface by cast molding and without employing a high-molecular-weight hydrophilic polymer even when employing a polypropylene mold. The method polymerizes a monomer solution containing a silicone...

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1. Verfasser:	IMAFUKU Suguru
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON CONTACT LENSES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method permits the fabrication of a silicone-containing copolymer molded article having a hydrophilic surface by cast molding and without employing a high-molecular-weight hydrophilic polymer even when employing a polypropylene mold. The method polymerizes a monomer solution containing a silicone monomer having a (meth)acryloyl group; a hydrophilic monomer having a vinyl group; a crosslinkable monomer; and a polymerization initiator in a cavity of a mold having a hydrophobic cavity surface. The polymerization initiator has a 10-hour half-life temperature of 70° C. or higher and 100° C. or lower, and the polymerization is conducted by maintaining a temperature within a range of from the temperature of the polymerization initiator contained in the monomer solution to 35° C. below the temperature for one hour or more; and maintaining a temperature higher than the temperature of the polymerization initiator contained in the monomer solution for one hour or more.