Copper complex monazo dyes and their preparation and use
US7060105B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Sep 26, 2003 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Jan 31, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/515
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Copper complex monoazo dyes of general formula (V)and of general formula (VI)wherein R1, R2, R3, R4, R5, R6 and M are as described in the specification, are excellent magenta dyes for dyeing and printing of cellulose containing materials and textile materials and especially for the preparation of inks for ink jet printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.