3.
    发明专利
    未知

    公开(公告)号:AT270696T

    公开(公告)日:2004-07-15

    申请号:AT00710017

    申请日:2000-09-13

    Applicant: DEGUSSA

    Abstract: A pigment preparation (I) contains a pigment and/or carbon black and a polymer and/or non-ionic surfactant, preferably cross-linked polyoxyethylene acrylic acid, fatty alcohol polyglycol ether, polyvinyl pyrrolidone, alcohol alkoxylate, alkylphenol glycol ether, lignin sulfonate and/or naphthalenesulfonic acid derivatives. An Independent claim is also included for a process for the preparation of the pigment preparation (I) by freeze drying of the aqueous preparation and optionally communication.

    CARBON BLACK TREATED BY OXIDATION

    公开(公告)号:CZ189799A3

    公开(公告)日:1999-12-15

    申请号:CZ189799

    申请日:1999-05-28

    Applicant: DEGUSSA

    Inventor: KARL ALFONS DR

    Abstract: An oxidatively aftertreated carbon black has a content of volatile constituents of more than 10 wt. %, based on its total weight, and the ratio of its CTAB surface area to the iodine adsorption number is greater than 2 m2/mg. The carbon black may be a channel black oxidatively aftertreated with ozone. The carbon black according to the invention is used preferably as pigment carbon black for the production of water-based paints, printing inks and as inks for mechanical and manual recording and drawing instruments. The combination of properties imparts to the carbon black an excellent dispersibility in water-based binder systems. The paints, printing inks and printer inks produced from this carbon black have an outstanding stability in storage.

    7.
    发明专利
    未知

    公开(公告)号:ES2204029T3

    公开(公告)日:2004-04-16

    申请号:ES99109597

    申请日:1999-05-14

    Applicant: DEGUSSA

    Inventor: KARL ALFONS DR

    Abstract: An oxidatively aftertreated carbon black has a content of volatile constituents of more than 10 wt. %, based on its total weight, and the ratio of its CTAB surface area to the iodine adsorption number is greater than 2 m2/mg. The carbon black may be a channel black oxidatively aftertreated with ozone. The carbon black according to the invention is used preferably as pigment carbon black for the production of water-based paints, printing inks and as inks for mechanical and manual recording and drawing instruments. The combination of properties imparts to the carbon black an excellent dispersibility in water-based binder systems. The paints, printing inks and printer inks produced from this carbon black have an outstanding stability in storage.

    8.
    发明专利
    未知

    公开(公告)号:BR9901678A

    公开(公告)日:1999-12-14

    申请号:BR9901678

    申请日:1999-05-28

    Applicant: DEGUSSA

    Inventor: KARL ALFONS DR

    Abstract: An oxidatively aftertreated carbon black has a content of volatile constituents of more than 10 wt. %, based on its total weight, and the ratio of its CTAB surface area to the iodine adsorption number is greater than 2 m2/mg. The carbon black may be a channel black oxidatively aftertreated with ozone. The carbon black according to the invention is used preferably as pigment carbon black for the production of water-based paints, printing inks and as inks for mechanical and manual recording and drawing instruments. The combination of properties imparts to the carbon black an excellent dispersibility in water-based binder systems. The paints, printing inks and printer inks produced from this carbon black have an outstanding stability in storage.

    9.
    发明专利
    未知

    公开(公告)号:DE3583894D1

    公开(公告)日:1991-10-02

    申请号:DE3583894

    申请日:1985-02-14

    Applicant: DEGUSSA

    Abstract: (1). New active C, (I), prepd. from lignite coke, is characterised by: (a) the prod. of the molasses index times the I2-index, divided by 1000, is equal to 350-1000 and/or (b) the prod. of the molasses index times the methylene blue titre, divided by 10, is equal to 500-2000. (2). (I) is prepd. by activating lignite coke with steam in a rotating cylinder. During activation, an aq. alkali- or alkaline earth carbonate and/or hydroxide soln. is sprayed with a lance into the rotating cylinder.

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