Thioether functional oligomeric polythiols and articles prepared therefrom
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United States of America Patent
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Mar 30, 2010
Grant Date -
May 29, 2008
app pub date -
May 4, 2007
filing date -
May 5, 2006
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Abstract
Provided is a thioether-functional, oligomeric polythiol having pendant hydroxyl functional groups, prepared by reacting together: (a) a compound having at least two thiol functional groups; and (b) a hydroxyl functional compound having triple bond functionality. Also provided are optical articles prepared from the reaction product of: (A) a reactive compound having functional groups that are reactive with active hydrogens; (B) a thioether-functional, oligomeric polythiol; and, optionally, (C) a compound different from (B) containing active hydrogens.
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