Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1979-09-13
1981-06-30
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
20415913, 20415923, 20415924, 351160R, 351160H, 526270, 526279, 528 23, 528 24, 528 33, 528 26, 528 32, 556416, 556417, 556418, 556419, 556440, C08F 3008
Patent
active
042764025
ABSTRACT:
Monomeric polysiloxanes end-capped with activated unsaturated 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.
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Chromecek Richard C.
Deichert William G.
Falcetta Joseph J.
VanBuren Martin F.
Bausch & Lomb Incorporated
Marquis Melvyn I.
Parker Frank C.
Phipps Robert M.
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