Polymerizable dichromophoric dichroic azo dyes
US7811642B2 · kind B2 · utility
3Cited by
4References
58Claims
0Family size
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Key dates
| Filing date | Apr 26, 2005 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Dec 25, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/031
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed towards polymerizable dichromophoric dichroic azo dyes comprising azo-chromophores to which polymerizable groups are attached leading to dyes having sufficient solubility in combination with high coloring power and high order parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.