Aqueous resin based inkjet inks
US9920211B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Apr 13, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2300/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An inkjet ink includes a) an aqueous medium; and b) capsules composed of a polymeric shell surrounding a core; wherein the capsules are dispersed in the aqueous medium using a dispersing group covalently bonded to the polymeric shell; the dispersing group is selected from the group consisting of a carboxylic acid or salt thereof, a sulfonic acid or salt thereof, a phosphoric acid ester or salt thereof, a phosphonic acid or salt thereof, an ammonium group, a sulfonium group, and a phosphonium group; the core contains one or more chemical reactants capable of forming a reaction product upon application of heat and/or light; and the capsules have an average particle size of no more than 4 μm as determined by dynamic laser diffraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.