USE OF SALTS OF LAYERED DOUBLE HYDROXIDES

摘要

The invention relates to the use of layered double hydroxide salts as charge control agents in electrophotographic toners and developers, in coating powders, electret materials and in electrostatic separation processes of chargeable materials, characterized in that the double hydroxide salt contai ns monovalent and/or bivalent metal cations, in addition to organic anions A of formulae (1) (XXX) wherein R1 - COOe (I) R2 - COSe (II) R3- CS2e (III) R6-SO 2e (VI) eOOC - R10 - COOe (IX).eO3SO - R11 - OSO3e (X) eO3S - R12 - SO3e (XI)