POLYHALIDE PARTICLES AND LIGHT VALVES COMPRISING SAME

摘要

A polyhalide tight-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 grou p 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 secon d compound comprises at least one additional group.