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    31.
    发明专利
    未知

    公开(公告)号：DE3718447A1

    公开(公告)日：1988-12-15

    申请号：DE3718447

    申请日：1987-06-02

    Applicant: BASF AG

    Inventor： HOFFMANN GERHARD DR ,  HUEMMER WOLFGANG DR ,  KOCH HORST DR ,  LITTMANN DIETER DR

    IPC: C08F8/00 ,  C08F2/48 ,  C08F8/44 ,  C08F290/00 ,  C08F299/00 ,  C08F210/02 ,  C08F216/16 ,  C08F220/02 ,  C08F8/14

    Abstract: Polymer ammonium salts formed from a copolymer (A) which can be modified by polymer-analogous reactions, and from one or more amines (B), where the copolymer (A) is obtainable by copolymerisation of monomer mixtures comprising… a1) ethylene,… a2) acrylic acid and/or methacrylic acid and… a3) one or more further monomers from the group comprising vinylesters, vinylethers, acrylates, methacrylates, acrylamides and methacrylamides,… and where the amines (B) are selected from the group comprising… b1) cyclic amines of the formula I … … and/or the group comprising… b2) open-chain amines of the formula II … … and/or from the group comprising… b3) 1,4-thiazine, N,N',N''-trisvinylmelamine and N,N',N''-trisallylmelamine,… the radicals Z, R , R and R being as defined in the description.

    ELECTROPHOTOGRAPHIC RECORDING MATERIAL
    34.
    发明专利
    ELECTROPHOTOGRAPHIC RECORDING MATERIAL 未知

    公开(公告)号：DE3264203D1

    公开(公告)日：1985-07-25

    申请号：DE3264203

    申请日：1982-03-12

    Applicant: BASF AG

    Inventor： DIMMLER MANFRED DR ,  HOFFMANN GERHARD DR ,  BUHL DIETER

    IPC: C09B29/00 ,  C09B29/10 ,  C09B29/15 ,  G03G5/06 ,  G03G5/14

    Abstract: An electrophotographic recording medium which consists essentially of an electrically conductive base and a photosemiconductive double layer which comprises a first layer containing charge carrier-producing dyes, and a second layer containing one or more compounds which are charge carrier-transporting when exposed to light, wherein the charge carrier-producing dyes are those of the general formula I (I) where R1, R2 and R3 are each hydrogen, halogen, alkyl, nitro or cyano, R4 is phenyl, halophenyl, alkylphenyl, nitrophenyl or dialkylaminophenyl, and X is oxygen, sulfur, NH or N-phenyl, and the production of this recording medium.

    ELECTROPHOTOGRAPHIC RECORDING MATERIAL
    35.
    发明专利
    ELECTROPHOTOGRAPHIC RECORDING MATERIAL 未知

    公开(公告)号：DE3264111D1

    公开(公告)日：1985-07-18

    申请号：DE3264111

    申请日：1982-03-12

    Applicant: BASF AG

    Inventor： GRASER FRITZ DR ,  HOFFMANN GERHARD DR ,  LEYRER REINHOLD J DR ,  NEUMANN PETER DR

    IPC: C09B5/62 ,  G03G5/06 ,  G03G5/14

    Abstract: An electrophotographic recording medium which consists essentially of an electrically conductive base and a photosemiconductive double layer which comprises a first layer containing charge carrier-producing dyes, and a second layer containing one or more compounds which are charge carrier-transporting when exposed to light, wherein perylene-3,4,9,10-tetracarboxylic acid N,N'-bis-(2',6'-dichlorophenyl)-diimide is employed as the charge carrier-producing dye, and the production of this recording medium.

    40.
    发明专利
    未知

    公开(公告)号：DE59504710D1

    公开(公告)日：1999-02-18

    申请号：DE59504710

    申请日：1995-03-10

    Applicant: BASF AG

    Inventor： KELLER HARALD DR ,  HOFFMANN GERHARD DR ,  DENZINGER WALTER ,  FAESSLER RAINER DR

    IPC: B05D3/10 ,  B05D7/14 ,  C08L39/00 ,  C09D139/00 ,  C25D13/20

    Abstract: Method of modifying cleaned or chemically pre-treated metal surfaces with aq. solns. of organic polymers contg. amino gps. In an example, a sample of Mn-modified, low Zn content, phosphatised steel that had been cleaned with water was immersed for 60s in a 0.1 wt.% aq. polyvinylamine soln. at 50 deg.C, then after drying in air the sample was immersed for 5s in deionised water and then after drying in air again the sample was cathodically electro-plated in a bath according to the comparative example in German patent application DE4208056-A2. The sample was plated at 320-380 V to give a 23 micron thick coating, and then fired for 25 mins. at 165 deg.C. A 0.1 mm wide incision was made in the lacquered sample, extending down to the metal surface and the sample was sprayed for 15 days with aq. NaCl soln. (5 wt.%) at 40 deg.C (salt water spray test), whilst another sample was immersed for 10 days in an aq. NaCl soln. (5 wt.%) warmed to 55 deg.C (salt water soak test). No rust was observed for the soak test, whilst only a slight amt. of rust was observed for the spray test.

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