| 摘要 |
<p>A light-polarizing material containing adsorbed molecular iodine, characterized by a complex obtained by reacting (i) elemental iodine, (ii) a hydrohalide acid and/or an ammonium or alkali metal or alkaline earth metal halide and (iii) a compound having the formula: <CHEM> wherein R<1> is carboxy, hydroxy, 2-pyridyl or lower alkyl substituted by carboxy or hydroxy; A is alkylene forming with the depicted carbon atom a carbocyclic ring; R<2> is carboxy, hydroxy, or lower alkyl substituted by carboxy or hydroxy; and R<3> and R<4> are independently hydrogen or lower alkyl. Light polarizing materials for uses in liquid suspensions, set suspensions and light valves.</p> |
