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    14.
    发明专利
    未知

    公开(公告)号：DE4302644A1

    公开(公告)日：1994-08-04

    申请号：DE4302644

    申请日：1993-01-30

    Applicant: HOECHST AG

    Inventor： BAUR RUEDIGER DR ,  MACHOLDT HANS-TOBIAS DR ,  THEIS WILFRIED

    IPC: C08G73/06 ,  C08G75/00 ,  C08G75/22 ,  C09D5/03 ,  C09D5/46 ,  D06P1/642 ,  G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  C09D7/12

    Abstract: Cyclic polysulphonediallylammonium salts obtainable by a) copolymerisation of salts, preferably halides, of monomeric diallylammonium components of the formula (I) with sulphur dioxide or a compound which liberates sulphur dioxide, and b) anion exchange, where all or some of the anions, preferably the halide ions, of the diallylammonium components have been replaced by the anions A, where the diallylammonium components have each been cyclised to give a 5- or 6-membered ring and have been bonded to one another via one or more divalent radicals -SO2- to give polymers, where the polysulphonediallylammonium salts have a molecular weight of between 500 and 5,000,000, and where the ratio between the number of diallylammonium components and the number of divalent -SO2- radicals is from 1:0.01 to 1:100, and where A is in each case the stoichiometric anion equivalent of an inorganic anion, of an anion of a heteropolyacid or of a borate of the formula (II) or of an organic anion or of a disulphopyrrolidiniumbetaine of the formula (III), or A is a combination of the above anions, are used, individually or in combination, as charge-control agents in electrophotographic toners and developers employed for copying and duplicating originals and for printing electronically, magnetically or optically stored information or in colour proofing, and as charge-control agents in powders and powder paints (coatings).

    15.
    发明专利
    未知

    公开(公告)号：DE3783654D1

    公开(公告)日：1993-03-04

    申请号：DE3783654

    申请日：1987-05-26

    Applicant: HOECHST AG

    Inventor： MACHOLDT HANS-TOBIAS DR ,  SIEBER ALEXANDER DR ,  KROH ADOLF

    IPC: G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G15/01

    Abstract: Improved magenta colourant for multicolour electrophotographic recording consists of mix crystals of 95-60 pts. 2,9-dimethyl-quino(2,3-b) acrid-7,14-dione (C.I. Pigment Red 122) (I) and 5-40 pts. quino(2,3-b) acrid-7,14-dione (II) of the formulae (I) and (II). The charge capacity is -23.0 microC/g for (I) alone and -40.5 microC/g for mix crystals of (I) and (II) in 3:1 ratio. This value can be varied in the range from -31.1 and -40.5 microC/g by the temp. conditions used during prepn. and after-treatment of the mix crystals. The mix crystals also have the required nuance and transparency, whereas a simple mixt. of (I) and (II) does not.

    17.
    发明专利
    未知

    公开(公告)号：DE3737496A1

    公开(公告)日：1989-05-18

    申请号：DE3737496

    申请日：1987-11-05

    Applicant: HOECHST AG

    Inventor： MACHOLDT HANS-TOBIAS DR ,  SIEBER ALEXANDER DR ,  GODAU CLAUS ,  MANZ ALBRECHT DR

    IPC: B05D1/10 ,  B05B5/047 ,  B05D1/06 ,  B05D7/24 ,  C09D5/03 ,  C09D5/46 ,  C09D133/00 ,  C09D163/00 ,  C09D167/00

    Abstract: Process for enhancing the electrostatic chargeability of powder coatings or powders, and the use thereof for surface coating solid objects. Process for enhancing the electrostatic chargeability of powder coatings or powders intended for the surface-coating of solid objects, by homogeneously incorporating at least one salt-like, cationic compound of the formula (1) (1) in which R1, R2, R3 and R4, independently of one another, denote hydrogen atoms, straight-chain or branched alkyl groups having 1 to 30 carbon atoms, mononuclear or polynuclear cycloaliphatic radicals having 5 to 12 carbon atoms, oxethyl groups of the general formula -(CH2-CH2-O)n-R in which n denotes a number from 1 to 10 and R denotes a hydrogen atom, a (C1-C4)alkyl or acyl group, furthermore denote mononuclear or polynuclear aromatic radicals or araliphatic radicals, where the aliphatic, aromatic and araliphatic radicals may be substituted, and where the alkyl, cycloalkyl, aralkyl and aryl radicals for R1 to R4 may be substituted by halogen atoms, X denotes a phosphorus, arsenic or antimony atom, where, in the case where X denotes an arsenic or antimony atom, at least one of the radicals R1-R4 is not a hydrogen atom, and A(-) denotes the equivalent of an inorganic or organic anion, in an amount from about 0.01 to about 10 percent by weight into powder coatings or powders, the salt-like, cationic compounds of the formula (1) being dissolved or dispersed in the powder of coating system.

    19.
    发明专利
    未知

    公开(公告)号：DE59108575D1

    公开(公告)日：1997-04-10

    申请号：DE59108575

    申请日：1991-09-19

    Applicant: HOECHST AG

    Inventor： GITZEL JOERG DR ,  WEHLE DETLEF DR ,  MACHOLDT HANS-TOBIAS DR

    IPC: G03G9/097 ,  C09D5/03 ,  C09D137/00 ,  C09D139/00 ,  G03G9/087 ,  G03G9/113

    Abstract: Use of polymeric ammonium salts which have a molecular weight of about 5000 to about 500,000, and are obtained by homopolymerization of monomers, such as, for example, diallyldialkylammonium chloride, or by copolymerization of mixtures of two monomers, such as, for example, diethyldimethylammonium chloride and diallylmethyloctylammonium chloride, with molar monomer ratios of about 0.5:0.5 to about 0.95:0.05 in the copolymer, and if appropriate subsequent anion exchange, individually or in combination as charge control agents in electrophotographic toners and developers which are employed for copying or duplicating masters and for printing electronically, magnetically or optically stored information or in colorproofing, and as charge control agents in powders and powder coatings.

    20.
    发明专利
    未知

    公开(公告)号：DE58908732D1

    公开(公告)日：1995-01-19

    申请号：DE58908732

    申请日：1989-09-28

    Applicant: HOECHST AG

    Inventor： MACHOLDT HANS-TOBIAS DR ,  KROH ADOLF ,  SIEBER ALEXANDER DR ,  DIETZ ERWIN DR

    IPC: G03G9/097 ,  C09B48/00 ,  C09B67/00 ,  C09B67/20 ,  C09B67/22 ,  C09B67/52 ,  G03G9/09

    Abstract: Quinacridones having selectively adjusted triboelectric effects, which quinacridones contain about 0.05% to 100 percent by weight of triboelectrically active compounds of the general formula I Q-A-Y]n (I), in which Q is a quinacridone radical which is unsubstituted or substituted by halogen atoms, alkyl, alkoxy H2N-CO-, alkyl-NH-CO- or (alkyl)2N-CO groups, A is a direct bond or -O-, -S-, -NR1-, -CO-, -SO2-, -CR2R3- or arylene and Y is an -NR4R5 group or a five-, six- or seven-membered heterocycle which contains one to three heteroatoms from the series comprising nitrogen and/or oxygen and/or sulfur and which can be substituted by alkyl, alkoxy, hydroxyphenyl, halogen, -CN, -COOH, -CO- NRR', -SO2-NRR', hydroxyalkyl or alkylaminoalkyl, in which R and R' together with the nitrogen atom can be a heterocycle, R and R' are hydrogen atoms or alkyl and R1 to R5, independently of one another, are each hydrogen and/or alkyl or alkenyl of 1 to 22 carbon atoms and n is a number from 1 to 4, and their use for the preparation of toners or developers which are used for electrophotographic copying or reproduction of originals and for printing electronically, optionally or magnetically stored information or are used in color proofing.

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