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21 records (took 0.022 seconds)

    11.
    发明专利
    未知

    公开(公告)号：BR9200248A

    公开(公告)日：1992-10-06

    申请号：BR9200248

    申请日：1992-01-27

    Applicant: HOECHST AG

    Inventor： AIGNER RUDOLF ,  MUELLER GUENTER DR ,  SCHOLZ HANS JUERGEN DR ,  WEHLE DETLEF DR

    IPC: C07C213/02 ,  C07C213/04 ,  C07C215/10 ,  C07C213/08

    Abstract: The novel process is based on the reaction of a dialkylamine, preferably dimethylamine or diethylamine, with a monohalopropanediol, preferably monochloropropanediol, in the presence of water. The reaction is carried out in the presence of 25 to 70% by weight of water and at a temperature of from 20 to 80 DEG C, the dialkylamine being employed in an amount of at least 2.5 mol per mol of monohalopropanediol. The novel process allows a high space-time-yield and also a high chemical yield of virtually pure dialkylaminopropanediol to be obtained.

    Use of polymeric ammonium salts - as charge controlling agents in electrophotographic toners and developers and in powders and powder lacquers
    12.
    发明专利
    Use of polymeric ammonium salts - as charge controlling agents in electrophotographic toners and developers and in powders and powder lacquers 未知

    公开(公告)号：DE4029653A1

    公开(公告)日：1992-03-26

    申请号：DE4029653

    申请日：1990-09-19

    Applicant: HOECHST AG

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

    IPC: C09D5/03 ,  G03G9/087 ,  G03G9/113

    Abstract: Polymeric ammonium salts of mol. wt. 5000-500000 are obtd. by homopolymerisation of monomers of formula (I) or (II) and by copolymerisation of mixts. of two monomers of formula (I)-(III) with a molar monomer ratio of (I):(II) and (I):(III) and (II):(III) of c. 0.5:0.5-0.95:0.05 in the copolymer, opt. with subsequent anion exchange, where R1-R12 and R1'-R12' independently = H, halogen, hydroxyl, prim., sec. or tert. amino, carboxylic acid, carboxylic acid ester, sulphonic acids, sulphonic acid ester, cyano, nitro or a hydrocarbon opt. interrupted by heteroatoms; X- and Y- = stoichiometric equivs. of an organic or inorganic anion or their mixts., and R13-R16 = independently H, Cl, Br, hydroxyl, prim., sec. or tert. amino, carboxylic acid, carboxylic acid ester, sulphonic acids, sulphonic acid ester, cyano, nitro or a hydrocarbon opt. interrupted by heteroatoms.

    13.
    发明专利
    未知

    公开(公告)号：DE4029652A1

    公开(公告)日：1992-03-26

    申请号：DE4029652

    申请日：1990-09-19

    Applicant: HOECHST AG

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

    IPC: C08F8/42 ,  C08F8/44 ,  C08F20/52 ,  C08F26/02 ,  C08F20/56 ,  C08F26/04 ,  C08F30/06 ,  C08F226/04

    Abstract: Polymeric ammonium borates having a molecular weight of from about 5000 to about 500,000, obtained by homopolymerisation of monomers, for example diallyldialkylammonium chloride, and by copolymerisation of mixtures of two monomers, for example diallyldimethylammonium chloride and diallylmethyloctylammonium chloride, having a molar monomer ratio of from about 0.5:0.5 to about 0.95:0.05 in the copolymer, and optionally subsequent anion exchange, and mixtures of these compounds, are suitable as colourless charge-control agents in toners and developers for electrophotographic recording processes and as charge-improving agents in powders and paints for surface coating.

    15.
    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.

    18.
    发明专利
    未知

    公开(公告)号：ES2074740T3

    公开(公告)日：1995-09-16

    申请号：ES92101077

    申请日：1992-01-23

    Applicant: HOECHST AG

    Inventor： AIGNER RUDOLF ,  MULLER GUNTER DR ,  SCHOLZ HANS JURGEN DR ,  WEHLE DETLEF DR

    IPC: C07C213/02 ,  C07C213/04 ,  C07C215/10

    Abstract: The novel process is based on the reaction of a dialkylamine, preferably dimethylamine or diethylamine, with a monohalopropanediol, preferably monochloropropanediol, in the presence of water. The reaction is carried out in the presence of 25 to 70% by weight of water and at a temperature of from 20 to 80 DEG C, the dialkylamine being employed in an amount of at least 2.5 mol per mol of monohalopropanediol. The novel process allows a high space-time-yield and also a high chemical yield of virtually pure dialkylaminopropanediol to be obtained.

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