Polyhalide particles and light valves comprising same
US6517746B1 · kind B1 · utility
1Cited by
15References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Jan 5, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/172
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.