Silicone Hydrogel Contact Lenses With High Freezable Water Content
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United States of America Patent
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Issued Date -
Aug 30, 2012
app pub date -
Feb 24, 2012
filing date -
Feb 28, 2011
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Abstract
Silicone hydrogel contact lenses that are derived from a polymerizable composition including at least one siloxane monomer and at least one hydrophilic monomer are described. These silicone hydrogel contact lenses have, when fully hydrated, has an equilibrium freezable water content of at least 25% wt/wt as determined by differential scanning calorimetry (DSC). Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.
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