Polyhalide particles and light valves comprising same
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United States of America Patent
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Feb 11, 2003
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N/A
app pub date -
Jan 5, 2001
filing date -
Jul 9, 1998
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Expired
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Abstract
A polyhalide light-polarizing material comprising a complex obtained by reacting: (a) elemental iodine; (b) a hydrohalide acid or an ammonium halide, alkali metal halide or alkaline earth metal halide; (c) a first compound capable of chelating hydrogen, ammonium or metal ions; and (d) a second compound comprising at least one chelating group present in the first compound and either (1) at least one group of the first compound is changed to a different group or (2) the second compound comprises at least one additional group.
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