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    1.
    发明专利
    未知

    公开(公告)号：DE58907712D1

    公开(公告)日：1994-06-30

    申请号：DE58907712

    申请日：1989-09-07

    Applicant: HOECHST AG

    Inventor： MACHOLDT HANS-TOBIAS DR ,  SIEBER ALEXANDER DR ,  SCHUI FRANZ ,  DEUBEL REINHOLD DR

    IPC: C09B41/00 ,  C09B63/00 ,  C09B67/18 ,  C09B67/20 ,  C09D5/46 ,  G03G9/09 ,  G03G9/097

    Abstract: Process for specifically influencing the triboelectric effect of azo pigments in electrophotographic toners or developers or in powders for surface coating by adding to the azo pigments at the coupling reaction stage, at the laking stage or in the course of finishing at least one saltlike, cationic compound whose positively charged center is a nitrogen, phosphorus, arsenic or antimony atom or the group and use of such azo pigments for producing toners or developers used for the electrophotographic copying or manifolding of originals or for printing electronically, optically or magnetically stored data or in colorproofing or use of such azo pigments for producing powders or powder coatings used for the surface coating of articles made of metal, wood, plastics, glass, ceramics, concrete, textile material, paper or rubber.

    2.
    发明专利
    未知

    公开(公告)号：DE3789879D1

    公开(公告)日：1994-06-30

    申请号：DE3789879

    申请日：1987-01-19

    Applicant: HOECHST AG

    Inventor： MACHOLDT HANS-TOBIAS DR ,  SIEBER ALEXANDER DR ,  TROESTER HELMUT DR

    IPC: G03G9/08 ,  G03G5/06 ,  G03G9/09 ,  G03G9/097 ,  G11B7/244

    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.

    4.
    发明专利
    未知

    公开(公告)号：DE3831384A1

    公开(公告)日：1990-03-29

    申请号：DE3831384

    申请日：1988-09-15

    Applicant: HOECHST AG

    Inventor： MACHOLDT HANS-TOBIAS DR ,  SIEBER ALEXANDER DR ,  SCHUI FRANZ DIPL ING ,  DEUBEL REINHOLD DR

    IPC: C09B41/00 ,  C09B63/00 ,  C09B67/18 ,  C09B67/20 ,  C09D5/46 ,  G03G9/09 ,  G03G9/097

    Abstract: Process for specifically influencing the triboelectric effect of azo pigments in electrophotographic toners or developers or in powders for surface coating by adding to the azo pigments at the coupling reaction stage, at the laking stage or in the course of finishing at least one saltlike, cationic compound whose positively charged center is a nitrogen, phosphorus, arsenic or antimony atom or the group and use of such azo pigments for producing toners or developers used for the electrophotographic copying or manifolding of originals or for printing electronically, optically or magnetically stored data or in colorproofing or use of such azo pigments for producing powders or powder coatings used for the surface coating of articles made of metal, wood, plastics, glass, ceramics, concrete, textile material, paper or rubber.

    5.
    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.

    7.
    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.

    8.
    发明专利
    未知

    公开(公告)号：DE3734528A1

    公开(公告)日：1989-05-03

    申请号：DE3734528

    申请日：1987-10-13

    Applicant: HOECHST AG

    Inventor： RITTER JOSEF DR ,  SIEBER ALEXANDER DR

    IPC: C09B67/24 ,  C09B62/503 ,  C09B69/00 ,  C09D11/328

    Abstract: The use, according to the invention, of water-soluble dyes for colouring recording liquids, in particular for the inkjet method, is characterised in that the dyes in the form of the free acid are of the general formula A-(SO2-X)p, in which A represents a customary colour- imparting radical carrying at least one sulpho group and from the class consisting of the mono- or disazo dyes or complexes thereof with chromium, iron, cobalt or copper, the copper or nickel phthalocyanines, anthraquinones, dioxazines or copper formazan complexes, p is 1, 2, 3 or 4 and X represents a vinyl group or a radical of the formulae -CH2CH2OR , -CH2CH2NR R , -CH2CH2SR , -CH2CH2NR NR R and … … in which R , R and R independently of one another denote H, the radical of the formula -CH2CH2-SO2-A or an optionally substituted alkyl, cylcoalkyl, aralkyl or aryl radical or an optionally substituted radical of an aliphatic or aromatic heterocyclic system and Q, together with the nitrogen atom, denotes an optionally substituted aliphatic or aromatic heterocyclic system,… or that X represents a radical of the formula … … in which… D and D , independently of one another denote O, sec-NH2 or tert-NH2, D denotes a direct bond, sec-NH2 or tert-NH2, alkylene, a group of the formula -O-, -S-, -SO-, -SO2- or -CO-, R and R independently of one another denote C1-C18-alkyl, C1-C18-alkoxy, COOH, SO3H, Cl and Y denotes H or the radical -CH2CH2-SO2-A, or that X represents the radical of the formula … … in which E is a straight-chain, branched or cyclic hydrocarbon radical which is not further substituted or is further substituted and has hetero atoms or has no hetero atoms,… R is hydrogen or a radical of the formula -CH2CH2-SO2-A and n and m are each an integer of from 0 to 12, with a total number of 2 to 12. … The dyes used according to the invention are prepared in a manner known per se, analogously to vinylsulphonyl or ss-sulphatoethylsulphonyl dyes, the reactive groups being reacted with nucleophiles, such as R OH, HNR R , HSR , etc. Some of the dyes obtained here are novel.

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