Water-soluble addition polymer and aqueous ink using the same
AssigneeCanon Kabushiki Kaisha
InventorsHiromichi Noguchi, Masahiro Haruta, Shoji Koike, Koromo Shirota, Tomoya Yamamoto, Mariko Suzuki, Shinichi Hakamada
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Abstract
The present invention relates to a water-soluble addition polymer which is produced from a carboxylated diol represented by the following general formula (I) and a polyisocyanate and has an acid value of 100 to 250, and an aqueous ink using this polymer as a dispersant for a disperse dye: 1 wherein the residue A is an aromatic, alicyclic or aliphatic polybasic acid residue, and the residue B is a trivalent aliphatic alcohol residue.
Claims20
A water-soluble addition polymer produced from a carboxylated diol represented by the following general formula (I) and a polyisocyanate and having an acid value in a range from 100 to 250:
- wherein the residue A is an aromatic, alicyclic or aliphatic polybasic acid residue, and the residue B is a trivalent aliphatic alcohol residue.
Dependencies are inferred from the claim text.