Inkjet recording ink, ink cartridge, inkjet recording method, inkjet recording device and ink recorded matter
US9752037B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 27, 2014 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Mar 21, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/1818
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An inkjet recording ink, including: water; a water-soluble organic solvent; a pigment; and a phosphate group-containing copolymer, wherein the phosphate group-containing copolymer contains a structural unit represented by the following General Formula (1) and a structural unit represented by the following General Formula (2): where R1 denotes a hydrogen atom or a methyl group; M+ denotes an alkali metal ion, an organic amine ion, or a hydrogen ion; half or more of M+ in the copolymer is the alkali metal ion or the organic amine ion, the remainder of M+ is the hydrogen ion; n and m each denote an integer of 0 to 6, provided that both of n and m are not 0; and a block of (C2H4O) and a block of (C3H6O) may be exchanged with each other, where R2 denotes a hydrogen atom or a methyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.