COMPOSITION FOR OPTICAL MATERIAL AND OPTICAL MATERIAL OBTAINED THEREFROM
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United States of America Patent
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Issued Date -
Jan 7, 2016
app pub date -
Feb 28, 2014
filing date -
Mar 4, 2013
priority date (Note) -
Abandoned
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Abstract
With the present invention, it is possible to provide a composition for optical materials which comprises: a polythiol compound satisfying any one of the following i) to iii) i) the compound has an ammonium cation concentration of 0.1 to 400 μmol/kg, ii) the compound has a thiocyanic acid anion concentration of 0.1 to 600 μmol/kg, and iii) the compound has an ammonium cation concentration of 0.1 to 400 μmol/kg and a thiocyanic acid anion concentration of 0.1 to 600 μmol/kg, the product of the ammonium cation concentration and the thiocyanic acid anion concentration being 0.01 to 100,000 (μmol/kg)2; and a polyisocyanate compound.
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