Inventors:
Frank Molock - Orange Park FL, US
Khaled Chehab - Jacksonville FL, US
James Ford - Orange Park FL, US
Ture Kindt-Larsen - Holte, DK
Craig Walker - Jacksonville FL, US
Joe Wood - Jacksonville FL, US
Julieann Weber - Atlantic Beach FL, US
Gary Collins - Jacksonville FL, US
International Classification:
D06P005/00, D06P003/52
US Classification:
008/506000, 008/507000, 008/509000
Abstract:
The invention provides a colorant for use in tinting contact lenses in which the binding polymer used is capable of forming an interpenetrating polymer network with the lens material. When the colorants of the invention are applied to uncured lens material that is subsequently cured, the binding polymer forms an interpenetrating polymer network with the lens material embedding the colorant within the lens material resulting in a stable, tinted lens.