Mill base composition and UV curable ink composition comprising same
US9969902B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2015 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Aug 1, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/322
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A mill base composition includes a compound comprising a divinyl ester of a dicarboxylic acid, a dispersing agent, and a pigment. The divinyl ester of the carboxylic acid includes from 2 to about 8 carbon atoms. The mill base composition is subjected to milling with milling beads to produce a milled mill base composition that functions as a pigment concentrate that may be added to an ink vehicle to form an ink composition suitable for use in inkjet ink devices. The milled mill base composition is particularly suited for UV curable ink compositions. A UV curable ink composition includes the pigment concentrate, one or more UV curable monomers, and one or more UV initiators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.