Pigment dispersions and inkjet ink compositions
US10093817B2 · kind B2 · utility
1Cited by
14References
8Claims
0Family size
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Key dates
| Filing date | Jul 25, 2016 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Sep 13, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/005
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous dispersion contains pigment colorant particles that are present in an amount of at least 5 weight % and up to and including 80 weight %; a dispersing polymer that is a hexyloxy benzoic acid polymer; and an aqueous medium. The weight ratio of the pigment colorant particles to the dispersing polymer is from 19:1 to and including 2:1. Such aqueous dispersions can be incorporated into aqueous inkjet ink compositions that can be used for forming opaque images such as white images using inkjet printing methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.