Particles containing a colorant and a water-based ink comprising polymer emulsion
US6777463B2 · kind B2 · utility
4Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Aug 21, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/30
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymer dispersion comprising water and polymer particles having a size of 5 to 500 nm in volume average diameter and having a core-part and a shell-part in each of the polymer particles, wherein the core-part and the shell-part each comprise a colorant and a polymer, and the shell-part contains the colorant in an amount of not more than 80 weight % of the colorant in the core-part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.