Fabrication of soft contact lens and composition therefor

Details Fabrication of soft contact lens and composition therefor Fabrication of soft contact lens and composition therefor

B - Operations, Transporting

29

C

18/106, 18/1198

B29C 1/02 (1980.01) B29C 1/04 (1980.01)

Patent

CA 1089611

Abstract of the Disclosure The invention is a mold for casting and polymerizing a polymer pre-mix which polymerizes in the absence of oxygen and is inhibited from polymerizing in the presence of oxygen. The mold comprises an oxygen- absorbent outer cylindrical tube, an oxygen non-absorbent spiral coil of film inert to the polymer and its pre-mix, for lining the interior of the tube and a removable, non-oxygen absorbent fluid-tight closure for each end of the tube.

315466

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