Use of copper complexes of disazo dyes for dyeing natural and synthetic material
US6984723B2 · kind B2 · utility
1Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Oct 16, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/919
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Use of the mono-copper complex of a dye of formula (1) wherein Z1, Z2, R1, R2, R3, R4, X, n and m are as defined in the claims, and mixtures thereof with the bis-copper complex of such a dye, for dyeing natural and synthetic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.