C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
88/40, 400/5102,
C08G 77/00 (2006.01) C08F 283/12 (2006.01) C08G 77/50 (2006.01) C08L 43/04 (2006.01) G02B 1/04 (2006.01)
Patent
CA 1133178
ABSTRACT OF THE DISCLOSURE Monomeric polysiloxanes end-capped with activated unsatur- ated groups polymerized with acrylic acid and a comonomer comprising a polycyclic ester of acrylic acid or methacrylic acid to form a hydrophilic, water absorbing contact lens is disclosed. These polysiloxane polymer contact lenses are unexpectedly capable upon hydration of retaining from 1 percent to about 99 percent by weight of water, based upon the total weight of the dry, i.e., unhydrated polymer.
359169
Chromecek Richard C.
Deichert William G.
Falcetta Joseph J.
Van Buren Martin F.
Bausch & Lomb Incorporated
Gowling Lafleur Henderson Llp
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