Polarizable phenanthroline complex crystal having improved stability to heat and moisture
US5646284A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 3, 1995 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Aug 3, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/172
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A complex crystal is composed of anion of triiodine and cation of a fused compound consisting essentially of at least one nitrogen atom and at least 3 aromatic fused rings. Since the complex crystal has such a stable structure, it shows excellent heat resistance and excellent moisture resisting property. Furthermore, the complex crystal has light-polarizing performance because of an arrangement of the molecular chain of iodine. Moreover, the complex crystal exhibits excellent polarization because of an interaction between the fused compound and iodine. Therefore, the complex crystal is suitable for use as light-adjusting particles of a light valve or a light-adjusting glass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.