The invention provides novel pigment dispersants of the formula (I) ##STR1##

in which Q is a radical of the formula (Ia) ##STR2##

    • s is a number from 0.1 to 4.0 and
    • n is a number from 0 to 2.0;
    • and provides pigment preparations comprising an organic base pigment and a pigment dispersant of the formula (I).

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    < POLYHYDROXYALKANOATE CONTAINING UNIT WITH PHENYLSULFANYL STRUCTURE IN THE SIDE CHAIN, PROCESS FOR ITS PRODUCTION, CHARGE CONTROL AGENT, TONER BINDER AND TONER WHICH CONTAIN NOVEL POLYHYDROXYALKANOATE, AND IMAGE-FORMING METHOD AND IMAGE-FORMING APPARATUS WHICH MAKE USE OF THE TONER

    < Antifouling coating

    > Connecting material and connecting method

    > Method and apparatus for ink jet printing
    ~ 00264