Modified pigment containing inkjet ink compositions having a reduced conductivity increase
US8147604B2 · kind B2 · utility
0Cited by
13References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2010 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Mar 11, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D17/005
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a modified pigment comprising a pigment having attached at least one salt of a geminal bisphosphonic acid group or partial esters thereof, as well as to dispersions and inkjet ink compositions comprising such modified pigments. Preferably the salt comprises a quaternary ammonium counterion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.