Method for treating the surface of an oxygen permeable hard cont

Details Method for treating the surface of an oxygen permeable hard cont Method for treating the surface of an oxygen permeable hard cont

1990-04-27

1990-12-25

Pianalto, Bernard

Coating processes

Pretreatment, per se, or post-treatment, per se

427 39, 427296, 427322, B05D 306

Patent

active

049802089

ABSTRACT:
A method for treating the surface of an oxygen permeable hard contact lens, which comprises applying high-frequency glow discharge treatment to an oxygen permeable hard contact lens made of a copolymer consisting essentially of a silicone-containing (meth)acrylate and/or a fluorine-containing (meth)acrylate, in a gas atmosphere of at least one member selected from the group consisting of helium, neon, argon and nitrogen gas, containing substantially no oxygen.

REFERENCES:
patent: 3925178 (1975-12-01), Gesser et al.
patent: 4214014 (1980-07-01), Hofer et al.
patent: 4409258 (1983-10-01), Feurer et al.

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