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US 2007/0182925 A1Published application
Methods and systems for leaching and releasing silicone hydrogel ophthalmic lenses in aqueous solution
OwnerDouglas Vanderlaan, Charmesh Dubey +2inventors
InventorsDouglas Vanderlaan, Charmesh Dubey, James Ford, Frank Molock
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Abstract
This invention includes methods and systems for processing hydrogel lenses using aqueous solutions as leaching aids and as release aids.
Claims20
A method for releasing an ophthalmic lens comprising silicone from a mold part, the method comprising:
- exposing said ophthalmic lens to a first aqueous solution comprising about 20% or more of a first release agent comprising Texapon 845;
- and
- heating said first aqueous solution to which the ophthalmic lens is exposed.
Dependencies are inferred from the claim text.