METHOD FOR MAKING EMBEDDED HYDROGEL CONTACT LENSES
The invention is directed to a cast molding method for making embedded hydrogel contact lenses. The method comprises a step of actinically curing a lens-forming composition in specific locations in molding assemblies each of which is formed from one male lens mold half and one female insert mold hal...
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| creator | Lu, Honghui Reece, Daryl Stanescu, Tudor Aguayo, Justin Joel Kolluru, Chandana Lisk, JR., James Reid Bassampour, Zahra An, Thae Hoon Leathley-Andrew, Aaron Luke |
| description | The invention is directed to a cast molding method for making embedded hydrogel contact lenses. The method comprises a step of actinically curing a lens-forming composition in specific locations in molding assemblies each of which is formed from one male lens mold half and one female insert mold half having a molded insert adhered thereon and comprises the lens-forming composition filling a gap between the back surface of the mold insert and the molding surface of the male lens mold half. This tack curing step ensures molded inserts adhered through multiple spots to the molding surface of each male lens mold halves which in turn will be used together with a female lens mold half in cast-molding of a lens forming composition to form an embedded silicone hydrogel contact lens. |
| format | Patent |
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The method comprises a step of actinically curing a lens-forming composition in specific locations in molding assemblies each of which is formed from one male lens mold half and one female insert mold half having a molded insert adhered thereon and comprises the lens-forming composition filling a gap between the back surface of the mold insert and the molding surface of the male lens mold half. 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The method comprises a step of actinically curing a lens-forming composition in specific locations in molding assemblies each of which is formed from one male lens mold half and one female insert mold half having a molded insert adhered thereon and comprises the lens-forming composition filling a gap between the back surface of the mold insert and the molding surface of the male lens mold half. This tack curing step ensures molded inserts adhered through multiple spots to the molding surface of each male lens mold halves which in turn will be used together with a female lens mold half in cast-molding of a lens forming composition to form an embedded silicone hydrogel contact lens.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES 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 THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP |
| title | METHOD FOR MAKING EMBEDDED HYDROGEL CONTACT LENSES |
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