Modified pigments having reduced phosphate release, and dispersions and inkjet ink compositions therefrom
US7819962B2 · kind B2 · utility
24Cited by
62References
47Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2009 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Mar 13, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/324
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a modified pigment comprising a pigment having attached at least one geminal bisphosphonic acid group, partial esters thereof, or salts thereof. The modified pigments have a low phosphate release value. Dispersions and inkjet ink compositions comprising these modified pigments are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.