Bausch-lomb Incorporated

John B Melpolder

Gary D Friends

Joon S Park

William G Deichert

Jay Friedrich Kunzler

Dye monomers of the general chemical formula ##STR1## where X denotes an unsaturated polymerizable organic radical; and

Polymerizable dye

The surface wetting characteristics of polysiloxanes prepared from monomeric polysiloxanes endcapped with activated unsaturated groups and modulus modifiers are improved by the inclusion of small amounts of an N-alkenoyl trialkylsilyl aminate. The improved polymeric compositions can be used to form hard, gas permeable contact lenses and other biomedical devices.

Polysiloxane composition with improved surface wetting characteristics

Monomeric polysiloxanes endcapped with activated unsaturated groups are copolymerized with polycyclic modulus modifiers and tear film stabilizers to form hard, gas permeable, polysiloxane contact lenses and other biomedical devices.

Polysiloxane with polycyclic modifier composition and biomedical devices

Monomeric polysiloxanes endcapped with activated unsaturated groups are copolymerized with a modulus modifier and tear film stabilizers to form hard, gas permeable, polysiloxane contact lenses and other biomedical devices.

Polysiloxane composition and biomedical devices

Monomeric polysiloxanes endcapped with activated unsaturated groups are copolymerized with cycloalkyl modulus modifiers and tear film stabilizers to form hard, gas permeable, polysiloxane contact lenses and other biomedical devices.

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Hilton, NY, United States of America

John B Melpolder