Hydrogels containing siloxane comonomers

Details Hydrogels containing siloxane comonomers Hydrogels containing siloxane comonomers

1986-01-07

1987-02-03

Lilling, Herbert J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524547, 524806, 526264, 526279, A61K 610, C08L 4300, C08L 4304, C08F23008

Patent

active

046409416

ABSTRACT:
Hydrogel polymeric material, suitable for preparing optical devices such as contact lenses. The material is of improved oxygen permeability and mechanical properties in comparison with conventional hydrogels. It comprises, in addition to the hydrogel material, from about 5% to about 60% by weight of a siloxane comonomer containing both an aromatic ring and vinyl functionality. Its cooperation and combination of performance characteristics with traditional hydrogel forming monomers provides a very useful polymeric material for making lenses of the soft hydrogel type.

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