Rigid, gas-permeable polysiloxane contact lenses

Details Rigid, gas-permeable polysiloxane contact lenses Rigid, gas-permeable polysiloxane contact lenses

1989-04-26

1990-05-08

Foelak, Morton

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

Synthetic resins

Processes of preparing a desired or intentional composition...

521154, 522 97, 522 99, 526279, C08F 3008, C08F12008, C08F23008

Patent

active

049239066

ABSTRACT:
New polysiloxane contact lenses are described which are prepared from polysiloxanes bearing at least three polymerizable vinyl groups by copolymerization with acrylic comonomers. The new lens materials are characterized by a superior combination of high oxygen permeability and rigidity.

REFERENCES:
patent: 4837289 (1989-06-01), Mueller et al.

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