Light-polarizing films containing dichroic dyes
US5340504A · kind A · utility
19Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1993 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | Feb 23, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3033
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to light-polarizing films based on water-soluble organic polymers, more particularly polyvinyl alcohol (PVAL), which contain one or more dichroic bis-, tris- or tetrakis-azo dyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.