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US 2014/0200287 A1Published application
Reactive Dyes For Contact Lenses
AssigneeCooperVision International Holding Company, LP
InventorsYuan Xu, Charlie Chen, Charles A. Francis, Shane Mao, Hong Xue, Xining Zhang
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Abstract
A method for preparing a polymerizable monomer-dye compound is provided in which a monomer, a reactive dye, and base are combined under substantially anhydrous reaction conditions to form the polymerizable monomer-dye compound, wherein the monomer comprises a pendant reactive group that covalently links to the reactive dye to form the monomer-dye compound.
Claims20
A method for preparing a polymerizable monomer-dye compound, comprising:
- combining a monomer, a reactive dye, and base under substantially anhydrous reaction conditions to form a reaction product comprising the monomer-dye compound, wherein the monomer comprises a pendant reactive group that covalently links to the reactive dye during the reaction to form the polymerizable monomer-dye compound.
Dependencies are inferred from the claim text.