Use of sulfonated polyazo dyes for dyeing leather in brilliant fast red shades
US5176717A · kind A · utility
3Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1991 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Jul 19, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/3226
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The use of compounds of the formula ##STR1## in which the symbols are as defined in claim 1, for dyeing leather is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.