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公开(公告)号：JPH1073963A
公开(公告)日：1998-03-17
申请号：JP15555897
申请日：1997-06-12
Applicant: HOECHST AG
Inventor： MACHOLDT HANS-TOBIAS DR , BAUMGART DIETER DR , BAUR RUEDIGER DR
IPC: B41J2/01 , C09B63/00 , C09D5/03 , C09D5/46 , C09D11/00 , C09D11/32 , G03G9/087 , G03G9/09 , G03G9/097 , H01G7/02
Abstract: PROBLEM TO BE SOLVED: To provide a transparent and blue colorant to be used for a toner for electrophotograph, a developer, fine particles, fine particulate paint, ink jet ink and an electret material, having a very stable inherent frictional electric effect, favourable dispersibility and high heat stability and having extremely dark color. SOLUTION: This fuchsine colorant uses an azo pigment expressed in a formula as a colorant in a toner for electrophotograph and developer, fine particles and a fine particulate paint, ink for ink jet and a electret material. In this case, azo pigment grain has a wide, specific surface area of more than 70m /g, and azo pigment grains have a length breadth ratio of lower than 2.8:1 in average and average grain size d50 smaller than 130nm.
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公开(公告)号：DE58908879D1
公开(公告)日：1995-02-23
申请号：DE58908879
申请日：1989-10-28
Applicant: HOECHST AG
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公开(公告)号：DE4142541A1
公开(公告)日：1993-06-24
申请号：DE4142541
申请日：1991-12-21
Applicant: HOECHST AG
Inventor： BAUR RUEDIGER DR , MACHOLDT HANS-TOBIAS DR
IPC: C07C209/62 , C07C211/21 , C07C211/63 , C07C215/40 , C07C229/30 , C07C255/30 , C07D207/08 , C07F5/02 , G03G9/097
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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公开(公告)号：AT85633T
公开(公告)日：1993-02-15
申请号：AT88118041
申请日：1988-10-29
Applicant: HOECHST AG
Inventor： MACHOLDT HANS-TOBIAS DR , SIEBER ALEXANDER DR , GODAU CLAUS , MANZ ALBRECHT DR
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公开(公告)号：DE4031705A1
公开(公告)日：1992-04-09
申请号：DE4031705
申请日：1990-10-06
Applicant: HOECHST AG
Inventor： MACHOLDT HANS-TOBIAS DR , NAGL GERT DR
IPC: C09D5/03 , C07C317/44 , C07C323/62 , C09D5/46 , G03G9/097
Abstract: The use of aryl sulfide, sulfoxide or sulphonic compounds having the structural type (I), in which m equals 1, 2 or 3, n equals 0, 1 or 2 and A and B represent a hydrogen, metal, ammonium, immonium, guanidinium, phosphonium, arsonium or stilbonium ion, as charge regulators for electrophotographic toners, developers, powders or powder coatings is disclosed.
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Patent Agency Ranking
公开(公告)号：DE4040469A1
公开(公告)日：1991-07-04
申请号：DE4040469
申请日：1990-12-17
Applicant: HOECHST AG
Inventor： MACHOLDT HANS-TOBIAS DR , SCHIESSLER SIEGFRIED DR , GITZEL JOERG DR , DIETZ ERWIN DR
IPC: C07C233/36 , C07C233/38 , C07C233/56 , C07C233/62 , C07C233/78 , C07C235/10 , C07D209/48 , C07D241/08 , C07D295/13 , C07D471/06 , C07D487/04 , C07F5/02 , C09D5/03 , G03G9/097
Abstract: New bis-cationic acid amide and imide derivs. of formulae (I) to (III) and their mixts. and mix crystals with mixed anions and/or cations are claimed: R1-8 independently = H or a hydrocarbon gp., opt. contg. a hetero-atom; KR1R2 and K'R4R5 may = a ring system; if R1R2, R4 or R5 is connected to K or K' by a double bond, R3 or R6 is absent and/or one of R1-3 with R7 or R4-6 with or R8 = a 2-5C aliphatic bridge; A, A' and W1 = divalent, W2 = a tetravalent and W3 = a trivalent bridge based on a hydrocarbon, opt. contg. hetero-atoms, and W1 may also = a direct bond; K and K' independently = N, P, As or Sb; X(-) = R9R10R11-R12B-; R9-12 independently = (cyclo)aliphatic, iso- or heterocyclic, aromatic or araliphatic gps. (opt. substd. by 1-4C alkyl, 1-4C alkoxy, aryl or halogen) or F. USE/ADVANTAGE - (I), (II) and (III) are useful as colourless charge transfer agents in electrophotographic toners and developers and to improve changing of powders and lacquers for surface coating, esp. in triboelectric or electrokinetic spraying of powder paints.
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公开(公告)号：DE3833422A1
公开(公告)日：1990-04-05
申请号：DE3833422
申请日：1988-10-01
Applicant: HOECHST AG
Inventor： MACHOLDT HANS-TOBIAS DR , KROH ADOLF DR , SIEBER ALEXANDER DR , DIETZ ERWIN DR
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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公开(公告)号：DE3737495A1
公开(公告)日：1989-05-18
申请号：DE3737495
申请日：1987-11-05
Applicant: HOECHST AG
Inventor： MACHOLDT HANS-TOBIAS DR , SIEBER ALEXANDER DR , GODAU CLAUS , MANZ ALBRECHT DR
Abstract: Process for enhancing the electrostatic chargeability of powder coatings or powders, and the use thereof for surface-coating solid objects. A process for enhancing the electrostatic chargeability of powder coatings or powders intended for surface-coating solid objects, by homogeneously incorporating at least one triarylmethane, azine, thazine and/or oxazine compound in an amount from about 0.01 to about 10 percent by weight into powder coatings or powders, the compounds mentioned being dissolved or dispersed in the powder coating system or powders.
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公开(公告)号：DE3737493A1
公开(公告)日：1989-05-18
申请号：DE3737493
申请日：1987-11-05
Applicant: HOECHST AG
Inventor： MACHOLDT HANS-TOBIAS DR , SIEBER ALEXANDER DR , GODAU CLAUS , MANZ ALBRECHT DR
Abstract: Process for increasing the electrostatic chargeability of powders, especially powder coatings for the surface coating of solid articles, by incorporating into the powder at least one triarylmethane, azine, thiazine and/or oxazine compound in an amount of from about 0.01 to about 10 per cent by weight until homogeneous, the said compounds being dissolved or dispersed in the powder coating system or powder.
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公开(公告)号：DE3628894A1
公开(公告)日：1988-03-10
申请号：DE3628894
申请日：1986-08-26
Applicant: HOECHST AG
Inventor： MACHOLDT HANS-TOBIAS DR , SIEBER ALEXANDER DR , FELDHUES MICHAEL DR
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