Production of ophthalmic devices based on photo-induced step growth polymerization
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United States of America Patent
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Dec 17, 2013
Grant Date -
May 2, 2013
app pub date -
Dec 12, 2012
filing date -
Dec 13, 2006
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Abstract
The invention provide a new lens curing method for making hydrogel contact lenses. The new lens curing method is based on actinically-induced step-growth polymerization. The invention also provides hydrogel contact lenses prepared from the method of the invention and fluid compositions for making hydrogel contact lenses based on the new lens curing method. In addition, the invention provide prepolymers capable of undergoing actinically-induced step-growth polymerization to form hydrogel contact lenses.
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