Coloring particles
US8262791B2 · kind B2 · utility
0Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2011 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Mar 29, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/328
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides coloring particles containing a dye and a water-insoluble low-molecular-weight dispersant, wherein the average particle size of the coloring particles is 10 nm or more and 80 nm or less; the solubility parameter of the dye in water with a pH of 6.0 to 10.0 is 9.20 or more, the solubility parameter being represented by formula (1); and the content of the dye and the content of the water-insoluble low-molecular-weight dispersant satisfy a relationship of formula (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.