Polymeric compositions useful in oxygen permeable contact lenses

Details Polymeric compositions useful in oxygen permeable contact lenses Polymeric compositions useful in oxygen permeable contact lenses

1989-10-17

1991-07-16

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526279, 526318, 526325, 5263285, 526245, 526247, 526242, 350409, C08F 2210

Patent

active

050326589

ABSTRACT:
Carboxylic acid esters devoid of beta hydrogens are homopolymerized or copolymerized with contact lens organic materials to form desirable contact lens materials and contact lenses. These materials have good contact lens properties, including desirable DK values, hardness, machineability and a desirable refractive index of at least 1.

REFERENCES:
patent: 3923752 (1975-12-01), Guse et al.
patent: 4152508 (1979-05-01), Ellis et al.
patent: 4433125 (1984-02-01), Ichinohe et al.
patent: 4602074 (1986-07-01), Mizutani et al.
patent: 4686267 (1987-08-01), Ellis et al.
patent: 4868260 (1989-09-01), Kawaguchi

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