Waterfast dyes
US6221139A · kind A · utility
3Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1999 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Apr 30, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B69/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to dyes and coloring liquids, in particular ink-jet inks, formulated using the same, exhibiting either or both improved waterfastness and smearfastness across a range of media for use in many applications such as ink-jet printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.