公开(公告)号：SG52714A1

公开(公告)日：1998-09-28

申请号：SG1996008197

申请日：1994-09-02

Applicant: HOECHST AG

Inventor： MACHOLDT HANS-TOBIAS ,  BAUR RUDIGER ,  ZOLLER JOACHIM

IPC: C08G63/68 ,  C08G63/685 ,  C08G63/688 ,  C08G63/91 ,  C09D5/03 ,  C09D5/46 ,  C09D167/00 ,  D06M15/507 ,  G03G9/087 ,  G03G9/097 ,  H01G7/02

Abstract: Polymer salts whose anionic component is a polyester comprising the product of the reaction of the individual components a), b) and c) and optionally d) and optionally e), where a) is a dicarboxylic acid or a reactive derivative of a dicarboxylic acid containing no sulpho groups, b) is a difunctional aromatic, aliphatic or cycloaliphatic sulpho compound whose functional groups are hydroxyl or carboxyl or hydroxyl and carboxyl, c) is an aliphatic, cycloaliphatic or aromatic diol, a polyether diol or a polycarbonate diol, d) is a polyfunctional compound (functionality > 2) whose functional groups are hydroxyl or carboxyl or hydroxyl and carboxyl, and e) is a monocarboxylic acid, and whose cationic component comprises hydrogen atoms, metal cations, substituted ammonium cations, immonium cations, guanidinium cations, phosphonium, arsonium or stibonium cations or a mixture of said cations, are suitable as charge-control agents and charging improvers in electrophotographic toners and developers, in triboelectrically or electrokinetically sprayable powder coatings (paints), in electret materials and for electrostatic separation of polymers and salt minerals.