Copolymer for soft contact lens, its preparation and soft contac

Details Copolymer for soft contact lens, its preparation and soft contac Copolymer for soft contact lens, its preparation and soft contac

1978-03-20

1979-02-13

Wong, Jr., Harry

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

20415922, 351160R, 526218, 526232, 526264, 526279, C08F22028, C08F23008, G02C 704

Patent

active

041395131

ABSTRACT:
A copolymer suitable for use as soft contact lenses, comprising a polymerization product of (a) at least one monomer selected from methyldi(trimethylsiloxy)sylylpropylglycerol methacrylate and methyldi(trimethylsiloxy)sylylpropylglycerolethyl methacrylate, (b) a hydrophilic monomer and (c) a cross-linking agent having at least two copolymerizable functional groups. Soft contact lens made of the above copolymer has excellent oxygen permeability in spite of low water content and can be comfortably worn continuously for a long term without a foreign body sensation and pain.

REFERENCES:
patent: 3787380 (1974-01-01), Stamberger
patent: 3937680 (1976-02-01), DE Carle
patent: 3951893 (1976-04-01), Gander
patent: 4022754 (1977-05-01), Howes et al.

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