Monoazo reactive red dyestuff
US6815536B2 · kind B2 · utility
4Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Dec 20, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/4413
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A monoazo reactive red dyestuff of the formula (I),wherein the R1, R2, R3, X, D, Z and n are as defined in the description. These kinds of dyestuffs are suitable for dyeing and printing of materials containing either cellulose fibers, such as cotton, artificial cotton, linen, and artificial linen, or synthetic polyamide, such as wool, silk, and nylon etc., as well as on mixed or cross-linked cellulose fibers and other fibers. Dyed materials with excellent properties can be obtained, showing especially outstanding performance in of wash-off, level-dyeing, light fastness and perspiration-light fastness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.