Ciba-geigy Corporation

Other

Ciga-geigy Corporation

Ciba-geigy Corproation

Frank F Molock

Kai C Su

J Richard Robertson, Jr

Hydrophilic modifier monomers of the formula [X-T].sub.z' H' are disclosed wherein X is a reactive group, H' is a hydrophilic group and T is a divalent linking group, z' being a number up to the available valence of H', excess H' valences being taken up by hydrogen. The monomers of the invention can be used to boost the hydrophilic nature of a wide variety of polymeric materials or be polymerized themselves with varying degrees of copolymerizable monomers. They are particularly suited for making hydrophilic contact lens materials.

Hydrophilic modifier monomers

Contact lenses which are optically clear, wettable, flexible, and of high oxygen permeability in the aqueous ocular environment of use, of a polymer containing polyoxyalkylene backbone units are disclosed, as well as the preparation thereof and methods of treating vision defects therewith.

Wettable, flexible, oxygen permeable, contact lens containing

Hydrophilic modifier monomers of the formula [X--T].sub.z 'G' are disclosed wherein X is a reactive group, G' is a hydrophilic group and T is a divalent linking group, z' being a number up to the available valence of G', excess G' valences being taken up by hydrogen. The monomers of the invention can be used to boost the hydrophilic nature of a wide variety of polymeric materials or be polymerized themselves with varying degrees of copolymerizable monomers. They are particularly suited for making hydrophilic contact lens materials.

Glutarimido and succinimido derivatives

Contact lenses which are optically clear, wettable, flexible, of high oxygen permeability and substantially non-swellable in the aqueous ocular environment of use, of a polymer containing polyoxyalkylene backbone units are disclosed, as well as the preparation thereof and methods of treating vision defects therewith.

Wettable, flexible, oxygen permeable, substantially non-swellable

Hydrophilic modifier monomers of the formula [X-T].sub.z' G are disclosed wherein X is a reactive group, G is a hydrophilic group and T is a divalent linking group, z' being a number up to the available valence of G, excess G valences being taken up by hydrogen. The monomers of the invention can be used to boost the hydrophilic nature of a wide variety of polymeric materials or be polymerized themselves with varying degrees of copolymerizable monomers. They are particularly suited for making hydrophilic contact lens materials.

Hydrophilic modifier monomers of the formula [X-T].sub.z 'G are disclosed wherein X is a reactive group, G is a hydrophilic group and T is a divalent linking group, z' being a number up to the available valence of G, excess G valences being taken up by hydrogen. The monomers of the invention can be used to boost the hydrophilic nature of a wide variety of polymeric materials or be polymerized themselves with varying degrees of copolymerizable monomers. They are particularly suited for making hydrophilic contact lens materials.

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Lawrenceville, GA, United States of America

Frank F Molock