Barnes-Hind, Inc.

Other

Chidambar L Kulkarni

Drahoslav Lim

Praful Doshi

James Edward Fox

Philip Gareth Bentley

Jagvi Ramesh Patel

Dennis A Repella

Stephen D Halbe

Hananiah J Dalton

The present invention recognizes that lenses, such as contact lenses, can be pigmented using an ink that includes oligomers, polymers or polymerizable monomers. The ink can be used to make images on or within the lens. Images made using these inks are may be digital or analogue and can be used in a variety of printing methods, including ink-jet printing.

Tinted lenses and methods of manufacture

Disclosed are a novel monomer, and oxygen-permeable copolymers made therefrom, as well as contact lenses made from said copolymers, wherein the novel monomer has the formula: ##STR1##

Novel siloxanyl acrylic monomer and gas-permeable contact lenses made

An interpenetrating network polymer is obtained by mixing hydrophilic monomer vinyl pyrrolidone and hydrophobic monomer (5-alkylene-m-dioxanyl) acrylic ester in the presence of at least two crosslinking agents and, optionally, hydroxyalkyl acrylic ester and catalysts and causing polymerization to occur. Contact lenses made from the polymer have high tensile strength and can absorb a high degree of water.

Hydrophilic polymers and contact lenses made therefrom

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San Diego, CA, United States of America

Chidambar L Kulkarni