Process for dyeing paper
US5203876A · kind A · utility
3Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Feb 22, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The dyes of formula ##STR1## wherein R, M and n are as defined in claim 1, are preeminently suitable for dyeing paper in blue shades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.