Fluorine containing polymeric compositions useful in contact len

Details Fluorine containing polymeric compositions useful in contact len Fluorine containing polymeric compositions useful in contact len

1989-12-12

1991-02-26

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526246, 351160R, 351160H, C08F 3008

Patent

active

049962752

ABSTRACT:
Improved contact lens compositions are achieved through incorporation of a fluorine containing mono or diester of itaconic acid in siloxane polymeric contact lens compositions. Copolymers include components which modify contact lens mechanical, optical and transport properties as well as surface characteristics to achieve at least some compositions having an oxygen permeability of at least DK35 with a refractive index of from 1.35 to 1.5 and a percent hydration below 2 percent of total weight. Contact lenses made of materials of this invention are highly permeable to oxygen and resistant to the deposition of tear components providing extended wear capability through improved biocompatibility.

REFERENCES:
patent: 3594353 (1971-07-01), Domba
patent: 3671574 (1972-06-01), Knell et al.
patent: 3868408 (1975-02-01), Holland et al.
patent: 4152508 (1979-05-01), Ellis et al.
patent: 4433125 (1984-02-01), Ichinohe
patent: 4440918 (1984-04-01), Rice et al.
patent: 4486577 (1984-12-01), Mueller et al.
patent: 4602074 (1986-07-01), Mizutani
patent: 4625007 (1986-11-01), Ellis et al.
patent: 4686267 (1987-08-01), Ellis

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