Crosslinked siloxane-urethane polymer contact lens

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

1988-09-28

1991-01-08

Jacobs, Lewis T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 33, 525474, C08G 77388

Patent

active

049837028

ABSTRACT:
A contact lens is described which is synthesized by reaction in a mold of a 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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