Oxygen permeable hard contact lens

Details Oxygen permeable hard contact lens Oxygen permeable hard contact lens

1990-03-01

1992-11-10

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

526245, C08F 2022

Patent

active

051623919

ABSTRACT:
The hard contact lenses of the present invention are, being formed of copolymers comprising as its essential components a siloxanylalkylamide unit and a monomer unit containing fluorine, excellent in oxygen permeability, wettability with water, resistance to soiling by protein, lipids or the like, transparency and mechanical strength.

REFERENCES:
patent: 4327203 (1982-03-01), Deichert et al.
patent: 4633003 (1986-12-01), Falcetta et al.
patent: 4652622 (1987-03-01), Friends et al.
patent: 4711943 (1987-12-01), Harvey, III
patent: 4829137 (1989-05-01), Stuyan
patent: 4911986 (1990-03-01), Keryk et al.

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