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US 2008/0167411 A1Published application
Stable Pigment Dispersions
AssigneeAgfa Graphics NV
InventorsFrank Louwet, Geert Deroover, Bert Groenendaal, Markus Hartenstein, Joachim Storsberg
Life of this patent
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Abstract
A pigment dispersion includes a pigment with at least one carboxylic acid group and a block copolymer including aromatic monomers having at least one carboxylic acid group or a salt thereof and aromatic monomers having at least one sulfonic acid group or a salt thereof. The pigment dispersions can be used for manufacturing inkjet inks and for the coating of colored layers.
Claims22
1-14. (canceled)
A pigment dispersion comprising:
- a pigment with at least one carboxylic acid group;
- and
- a block copolymer including aromatic monomeric units having at least one carboxylic acid group or a salt thereof, and aromatic monomeric units having at least one sulfonic acid group or a salt thereof.
Dependencies are inferred from the claim text.