Oxygen permeable hard contact lens

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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351160R, 351160H, 528 32, C08F 3008

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active

045088845

ABSTRACT:
Oxygen permeable hard contact lenses from the copolymerization of ethylenically unsaturated silicone ester; sterically hindered or bulky aliphatic ester of ethylenically unsaturated carboxylic acid, and hydrophilic monomer; and method for the polymerization thereof.

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patent: 4424328 (1984-01-01), Ellis
WO84/00968, WO84/00969, PCT, Whitford et al., Mar. 15, 1984.

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