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US 11,851,517 B2Granted
Polymer dispersant, colorant dispersion liquid, and ink composition
AssigneeSeiko Epson Corporation
InventorToshihiro Otake
Life of this patent
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Abstract
A polymer dispersant includes a first block; and a second block, the first block has a structural unit derived from a first monomer having an imidazolium salt portion and a hydrophobic portion, and the second block has a structural unit derived from a second monomer having an imidazolium salt portion and a hydrophilic portion.
Claims12
A polymer dispersant comprising:
- a first block;
- and
- a second block,
- wherein the first block includes a structural unit derived from a first monomer having an imidazolium salt portion and a hydrophobic portion,
- the second block includes a structural unit derived from a second monomer having an imidazolium salt portion and a hydrophilic portion, and
- the hydrophobic portion of the first monomer contains an alkyl carboxylate group, a cycloalkyl carboxylate group, or an aryl carboxylate group.
3 more elements
A polymer dispersant comprising:
- a first block;
- and
- a second block,
- wherein the first block includes a structural unit derived from a first monomer having an imidazolium salt portion and a hydrophobic portion,
- the second block includes a structural unit derived from a second monomer having an imidazolium salt portion and a hydrophilic portion, and
- the first block has a branched structure.
3 more elements
Dependencies are inferred from the claim text.