Crosslinked siloxane-urethane polymer contact lens

Details Crosslinked siloxane-urethane polymer contact lens Crosslinked siloxane-urethane polymer contact lens

C - Chemistry, Metallurgy

08

G

402/15, 402/23,

C08G 18/61 (2006.01) C08G 77/54 (2006.01) C08L 75/04 (2006.01) G02B 1/04 (2006.01)

Patent

CA 1331068

CROSSLINKED SILOXANE-URETHANE POLYMER CONTACT LENS Abstract of the disclosure A contact lens is described which is synthesized by reaction in a mold of an isocyanate capped poly(dialkylsiloxane) prepolymer with a poly(dialkylsiloxane) di- or polyalkanol. The clear polyurethane rubber contact lens is readily made completely wettable by a transfer-grafting process or post- treatment and has a high oxygen permeability.

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