23.
    发明专利
    未知

    公开(公告)号:DE3878398D1

    公开(公告)日:1993-03-25

    申请号:DE3878398

    申请日:1988-10-29

    Applicant: HOECHST AG

    Abstract: Increasing the electrostatic charge capacity of powder lacquers or powder for surface coating of solid objects is effected by incorporating ca. 0.01-10 (wt.)% of triarylmethane, azine, thiazine and/or oxazine cpd(s). (I) homogeneously, so that (I) are dissolved or dispersed in the powder lacquer system or powder.

    26.
    发明专利
    未知

    公开(公告)号:DE3936146A1

    公开(公告)日:1990-05-10

    申请号:DE3936146

    申请日:1989-10-28

    Applicant: HOECHST AG

    Abstract: Ammonium compounds of the formula (I) (I) in which at least one of the radicals R1 to R4 denotes a fluorine-containing alkyl radical having 4 to 30 carbon atoms and not more than three of the radicals R1 to R4 independently of one another denote hydrogen atoms or alkyl or hydroxyalkyl radicals having 1 to 30 carbon atoms, and R5 to R8 denote aryl, alkylaryl or halogenoaryl radicals or fluorine atoms, and iminium compounds of the formula (II) (II) in which Q, together with the constituent forms a ring system having 4 to 17 carbon atoms, which can be interrupted by 1 to 4 hetero atoms and contain 2 to 9 double bonds, and which can be substituted by fluorine, chlorine, bromine or iodine atoms or alkyl (C1-C6), alkoxy (C1-C6), nitro or amino groups, R9 denotes a fluorine-containing alkyl (C1-C30) radical, R10 denotes a hydrogen, fluorine, chlorine, bromine or iodine atom or an alkyl(C1-C6), alkoxy (C1-C6), nitro or amino group and the radicals R11 to R14 denote aryl radicals, alkylaryl radicals, halogenoaryl radicals or fluorine atoms, and mixtures of these compounds and processes for their preparation.

    27.
    发明专利
    未知

    公开(公告)号:DE3602182A1

    公开(公告)日:1987-07-30

    申请号:DE3602182

    申请日:1986-01-25

    Applicant: HOECHST AG

    Abstract: Colorant for electrophotographic recording processes which is composed of mix-crystals of 99-70 parts of a compound of the following formula I and 1-30 parts of a compound of the following formula II I II where R in formula II denotes a C1-C4-alkyl group, and the use thereof for preparing toners or developers which are used for the electrophotographic copying or duplicating of originals and for printing electronically, optically or magnetically stored information.

    28.
    发明专利
    未知

    公开(公告)号:DE59208394D1

    公开(公告)日:1997-05-28

    申请号:DE59208394

    申请日:1992-12-18

    Applicant: HOECHST AG

    Abstract: Ionogenic, monomeric diallylammonium compounds containing a specific combination of diallylammonium cations with selected anions have particularly high constant charge-control properties, very good thermal stabilities and dispersibilities. The compounds according to the invention are highly suitable for use as colourless charge-control agents in toners and developers for electrophotographic recording processes and for use as charge-improving agents in powders and paints for surface coating, in particular in triboelectrically or electrokinetically sprayed powder paints (powder coatings).

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