METHOD FOR MAKING SILICONE HYDROGEL CONTACT LENSES WITH GOOD COATING DURABILITY

The invention provides a cost-effective method for making a silicone hydrogel contact lens by casting a lens from a material which comprises a non-crosslinkable hydrophilic polymer, applying an LbL coating comprising at least one layer of a polyionic material wherein the non-crosslinkable hydrophili...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	WINTERTON, LYNN COOK
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS 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 TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention provides a cost-effective method for making a silicone hydrogel contact lens by casting a lens from a material which comprises a non-crosslinkable hydrophilic polymer, applying an LbL coating comprising at least one layer of a polyionic material wherein the non-crosslinkable hydrophilic polymer promotes entanglement of the non-crosslinkable hydrophilic polymer with the coating materials so as to obtain a silicone hydrogel contact lens which has a wettable surface coating with a good coating durability. L'invention concerne un procédé rentable de fabrication de lentilles de contact en hydrogel de silicone qui possèdent un bon revêtement mouillable avec une bonne durabilité.