POLYMERIZABLE COMPOSITION FOR COLORING CONTACT LENSES
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United States of America Patent
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Nov 1, 2016
Grant Date -
Nov 10, 2016
app pub date -
Oct 20, 2015
filing date -
May 4, 2015
priority date (Note) -
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Abstract
The disclosure is related to a polymerizable composition for coloring contact lens, comprising a composite colorant and at least one hydrophilic monomer. The composite colorant is produced by a reaction of a colorant precursor and a (methyl)methacryloxy group-containing shine coupling agent. The colorant precursor is produced by a reaction of a metal oxide and a siloxane compound under alkaline solution.
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