Inkjet inks
US11136466B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2017 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Nov 16, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/38
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Yellow inkjet inks are disclosed. In an example, an inkjet ink composition comprises: at least one colorant comprising at least one yellow pigment; at least one solvent comprising at least one triol; water; and at least one binder. The binder comprises a polyurethane-based binder dispersion, which comprises water and a polyurethane. The polyurethane comprises: (A) a polyisocyanate, (B) a first polyol having a chain with two hydroxyl functional groups at one end of the chain and no hydroxyl groups at an opposed end of the chain, (C) a second polyol having a chain with two hydroxyl functional groups at both ends of the chain, (D) a carboxylic acid functional group with two hydroxyl functional groups, and (E) a sulfonate or sulfonic acid functional group having two amino functional groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.