Patent ID: 9599751
Date: 2017-03-21
CPC Classifications: C08L,G02B,G02C

Claim:
1. A silicone hydrogel formed from a reactive mixture comprising major polymerizable components comprising at least one reactive silicone-containing component, at least one reactive ionic monomer, crosslinker, and optional reactive hydrophilic components; and minor components that are optionally polymerizable selected from the group consisting of visibility tint and dyes, UV absorbers, photochromic compounds, pharmaceutical compounds, nutriceutical compounds, and mixtures thereof; wherein said major polymerizable components comprise a single reactive functionality; and wherein any polymerizable components in the reaction mixture which have a reactive functionality different than said single reactive functionality are present in a concentration less than 0.5 mol %, wherein said single reactive functionality is selected from (meth)acrylates.