Process for rendering silicone rubber contact lenses hydrophilic

Details Process for rendering silicone rubber contact lenses hydrophilic Process for rendering silicone rubber contact lenses hydrophilic

1980-07-18

1982-06-01

Morgenstern, Norman

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

264 14, 351160H, 427 2, 427 40, 427164, 427169, 427340, 427341, 427387, 427400, 525479, 528 14, 528 23, 528 31, 528 32, C08L 4304, B05D 506

Patent

active

043329225

ABSTRACT:
Process for rendering silicone rubber contact lenses hydrophilic by first reacting the silicone rubber with an oligomeric siloxane containing SiH groups in the presence of a catalyst and then subjecting the resulting equilibrated silicone rubber to a reaction with an aqueous base; or a silane addition reaction with a reactant containing C.dbd.C double bonds.

REFERENCES:
patent: 3935342 (1976-01-01), Lim
patent: 4053680 (1977-10-01), Wasserman et al.
patent: 4143949 (1979-03-01), Chen
patent: 4182723 (1980-01-01), Covington
patent: 4189546 (1980-02-01), Deichert et al.

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