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    AQUEOUS CARBON BLACK DISPERSION, ITS PREPARATION AND USE THEREOF
    11.
    发明专利
    AQUEOUS CARBON BLACK DISPERSION, ITS PREPARATION AND USE THEREOF 失效

    公开(公告)号：JP2000007936A

    公开(公告)日：2000-01-11

    申请号：JP15537099

    申请日：1999-06-02

    Applicant: DEGUSSA

    Inventor： STUEBBE ANDREAS ,  KLEINHENZ HORST ,  LEIMANN JUERGEN DR ,  KARL ALFONS

    IPC: C09C1/48 ,  C09D11/00 ,  C09D11/16 ,  C09D11/324 ,  C09D17/00 ,  C09D11/02

    Abstract: PROBLEM TO BE SOLVED: To obtain high optical density and excellent abrasion resistance by blending a carbon black, a surfactant and water in a specific ratio. SOLUTION: This carbon black dispersion contains water, 1-40 wt.% carbon black and 1-30 wt.% surfactant. A pigment carbon black with an average primary particle diameter of 8-80 nm and a DBP value of 40-200 ml/100 g can be used as the carbon black. Preferably, a gas carbon black with an average primary particle diameter of 8-30 nm is used. A combination of two nonionic surfactants is used as the surfactant. The combination comprises (A) a crosslinked polyoxyethylene acrylic acid and (B) an alkyloxy ethylene wherein the ratio of B to A is preferably 1:2-1:10. In addition to the nonionic surfactants, anionic surfactants can be additionally used, which can prevent an increase in viscosity of the dispersion during storage.

    OXIDATION POST-TREATED CARBON BLACK
    12.
    发明专利
    OXIDATION POST-TREATED CARBON BLACK 失效

    公开(公告)号：JPH11349849A

    公开(公告)日：1999-12-21

    申请号：JP14691499

    申请日：1999-05-26

    Applicant: DEGUSSA

    Inventor： KARL ALFONS

    IPC: C09C1/48 ,  C09C1/54 ,  C09C1/56 ,  C09D7/12 ,  C09D11/00 ,  C09D11/16

    Abstract: PROBLEM TO BE SOLVED: To obtain a printing ink which shows stability for a long term by using an oxidation post-treated carbon black having a content of a volatile component of not less than a specific amount to the total weight and a ratio of CTAB surface area to an iodine value of not less than a specific value. SOLUTION: An oxidation post-treated carbon black has a content of a volatile component of not less than 10 wt.% of total weight, advantageously not less than 15 wt.%, a ratio of CTAB surface area to an iodine value of not less than 2 m /mg, advantageously not less than 4 m /mg and has no measurable basic oxides. The carbon black is supplied from a carbon black filling member 8 to a treating vessel 1 by means of a fluidized bed and the height of the fluidized bed is controlled by a sensor 9, while at most 12-25 g/hour of ozone is introduced to the treating vessel 1 from an introducing pipe 4 by passing air or oxygen through an ozone generating apparatus 7. The carbon black is oxidized at 20-30 deg.C and the exhaust gas is taken out from an exhaust pipe via a sedative part.

    METHOD FOR MANUFACTURING POST-TREATED CARBON BLACK
    19.
    发明专利
    METHOD FOR MANUFACTURING POST-TREATED CARBON BLACK 审中-公开

    公开(公告)号：JP2003268259A

    公开(公告)日：2003-09-25

    申请号：JP2003068697

    申请日：2003-03-13

    Applicant: DEGUSSA

    Inventor： KARL ALFONS

    IPC: C09C1/56 ,  C09C3/06

    Abstract: PROBLEM TO BE SOLVED: To provide a method which enables the optimum conversion of matter and conversion of energy, extremely good uniformity of a product, and a continuous operation. SOLUTION: The method for manufacturing a post-treated carbon black comprises fluidizing carbon black in a fluidized bed while adding a fluidizing agent and, simultaneously, bringing the carbon black into contact with a post- treating agent. COPYRIGHT: (C)2003,JPO

    CARBON BLACK HAVING ORGANIC GROUP, ITS MANUFACTURE AND USE
    20.
    发明专利
    CARBON BLACK HAVING ORGANIC GROUP, ITS MANUFACTURE AND USE 失效

    公开(公告)号：JP2002053768A

    公开(公告)日：2002-02-19

    申请号：JP2001187247

    申请日：2001-06-20

    Applicant: DEGUSSA

    Inventor： BERGEMANN KLAUS ,  KARL ALFONS

    IPC: C08K9/04 ,  C08K9/06 ,  C09C1/56 ,  C09C3/12 ,  C09D11/00

    Abstract: PROBLEM TO BE SOLVED: To provide a carbon black having an organic group capable of being used as a filler, UV-stabilizer, electroconductive carbon black, and pigment, and a method of its manufacture. SOLUTION: In this carbon black having an organic group, the organic group is bonded to the carbon black via at least a secondary and/or a tertiary amine, and the organic group contains a silicon. In this method of manufacturing the carbon black, a carbon black is reacted with a compound represented by the general formula: R-N3.

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