Ophthalmic device formed of a copolymer plastic material from et

Details Ophthalmic device formed of a copolymer plastic material from et Ophthalmic device formed of a copolymer plastic material from et

1990-06-04

1992-03-03

Henderson, Christopher

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526273, 526279, 351159, 351160R, C08F22400, C08F23008

Patent

active

050934473

ABSTRACT:
Comfortable, oxygen permeable hard and semi-hard contact lenses are made from the copolymer of ethylenically unsaturated siloxanylalkoxy ester monomer, ethylenically unsaturated fluorocarbon ester monomer and ethylenically unsaturated sulfone monomer; the copolymer plastic can be modified by the incorporation of hardening, stability and wettability agents and methods for the manufacture thereof.

REFERENCES:
patent: 2538100 (1951-01-01), Irany
patent: 2793223 (1957-05-01), Merker
patent: 3594353 (1971-07-01), Domba
patent: 4182822 (1980-01-01), Chang
patent: 4216303 (1980-08-01), Novicky
patent: 4246389 (1981-01-01), LeBoeuf
patent: 4424328 (1984-01-01), Ellis
patent: 4500695 (1985-02-01), Ivani
patent: 4508884 (1985-04-01), Wittmann
patent: 4525563 (1985-06-01), Shibata
patent: 4540761 (1985-09-01), Kawamura
patent: 4614777 (1986-09-01), Kania

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