| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a polyester salt useful as a charge control agent. SOLUTION: The anion component of this polyester salt is a polyester prepared by reacting a) a dicarboxylic acid having no sulfo group or its reactive derivative, b) a hydroxyl- and/or carboxyl-functional, difunctional aromatic, aliphatic, or alicyclic sulfo compound, c) an aliphatic, alicyclic, or aromatic diol, polyether diol, or polycarbonate diol, if necessary d) a hydroxyl- and/or carboxyl-functional, polyfunctional (functionality>2) compound, and if necessary e) a monocarboxylic acid. The cation component is a metal cation, a substituted ammonium cation, an immonium cation, a guanidium cation, a phosphonium cation, an arsonium cation, a stibonium cation, or a mixture of these cations.</p> |
