Polyoxirane crosslinked polyvinyl alcohol hydrogel contact lens

Details Polyoxirane crosslinked polyvinyl alcohol hydrogel contact lens Polyoxirane crosslinked polyvinyl alcohol hydrogel contact lens

1985-01-22

1986-07-01

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

523106, 523406, 523409, 525115, 525118, 5253306, 525385, C08F 800

Patent

active

045981221

ABSTRACT:
Optically clear soft contact lenses of a polyoxirane crosslinked polyvinyl alcohol having a weight average molecular weight of at least 8,000 and degree of hydrolysis of at least 93% and their preparation are disclosed. The materials are characterized by their ability to be boiling water sterilized, and their high water content, high oxygen permeability and high optical clarity.

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T. Electrochem. Soc. (USA) vol. 129, No. 2, (Feb. 1982), Hsu & Sheibley.

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