Disperse azo dyestuffs and process for preparation and their use
US4257943A · kind A · utility
4Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1978 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Aug 14, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A compound of the formula ##STR1## in which X represents chlorine or bromine, Y and Z each represent methyl or ethyl, and n stands for the integer 1 or 2, said compound being useful as a navy blue dye for the dyeing or printing synthetic fibrous materials, preferably polyester fibers, in aqueous baths, suitably in the form of dyestuff preparations containing dispersing agents, and also useful for dyeing fibrous materials in organic solvents, such as trichloroethylene or methanol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.