Zwitterionic chromophores and macromolecules containing such chromophores
US7700780B2 · kind B2 · utility
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29Claims
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Key dates
| Filing date | Mar 3, 2006 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Feb 18, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2211/1466
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention disclosed relates to functionalized zwitterionic chromophores of structural formula III and III′.Wherein
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.