Coloring composition, thermal transfer recording ink sheet, thermal transfer recording method, color toner, inkjet ink, color filter, and azo dye
US7988776B2 · kind B2 · utility
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13References
11Claims
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Key dates
| Filing date | Mar 27, 2008 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Nov 13, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/201
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A coloring composition containing an azo dye of the following formula (1):wherein R1, R2, R3 and R6 represent a monovalent substituent; R5 represents a hydrogen atom or a monovalent substituent; n is 0 to 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.