Method for making silicone hydrogel contact lenses with good...

Details Method for making silicone hydrogel contact lenses with good... Method for making silicone hydrogel contact lenses with good...

B - Operations, Transporting

29

D

B29D 11/00 (2006.01) B29C 44/34 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2644791

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.

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