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    Siliceous pigments - for prodn of coloured,matt finishes
    1.
    发明专利
    Siliceous pigments - for prodn of coloured,matt finishes 未知

    公开(公告)号：DE2155286A1

    公开(公告)日：1973-05-10

    申请号：DE2155286

    申请日：1971-11-06

    Applicant: BASF AG

    Inventor： BELDE HORST ,  DAUBACH EWALD DR ,  JETTMAR WERNER DR

    IPC: C09B67/20 ,  C09D17/00 ,  C09C1/30

    Abstract: Siliceous pigments are prepd. by mixing (10-80) wt.% pigment raw material (inorganic or organic) with (20-90) wt.% silica hydrosol (ctg. 20-40 wt.% silica, calculated as SiO2) and (0-10) wt.% surface active agent (esp. salts of long chain fatty acids, alkali-metal salts of fatty alcohols contg. 12-18C-atoms). The mixt. is dispersed in an aq. medium to a particle size of =2 mu and then, by spray drying or pptn. with water-sol. salts, esp. CaCl2, MgCl2 or MgSO4, sepd. dried and, if necessary, milled into the solid form. The process yields pigments for making coloured, matt lacquers, dispersions etc. without mixing difficulties.

    5.
    发明专利
    未知

    公开(公告)号：CH622545A5

    公开(公告)日：1981-04-15

    申请号：CH1507576

    申请日：1976-11-30

    Applicant: BASF AG

    Inventor： KRANZ JOACHIM DR ,  JETTMAR WERNER DR ,  POLSTER RUDOLF DR

    IPC: C09B67/20 ,  C09B47/12 ,  C09B47/26 ,  C09B67/22 ,  C09B67/12

    Abstract: A process for converting crude copper phthalocyanine to a pigmentary form, wherein finely divided and heavily agglomerated crude copper phthalocyanine which exhibits disturbed crystallization and which has a primary particle size of less than 0.1 mu um is introduced into an organic or aqueous organic medium together with from 0.5 to 7% by weight, based on the crude copper phthalocyanine, of a basic copper phthalocyanine of the formula (I) or (II) or of mixtures thereof (where CuPc is an n-valent copper phthalocyanine radical, R1 is H or alkyl of 1 to 4 carbon atoms, A is linear or branched alkylene, R2 is alkyl of 1 to 20 carbon atoms, alkoxyalkyl of 3 to 12 carbon atoms or cycloalkyl of 6 to 8 carbon atoms, R3 is H, alkyl of 1 to 4 carbon atoms or cycloalkyl of 6 to 8 carbon atoms or is a saturated heterocyclic 5-membered, 6-membered or 7-membered ring, and n is an integer from 1 to 6), and the suspension is heated at from room temperature to 180 DEG C until the pigment exhibits optimum tinctorial strength. Pigments of high tinctorial strength, which give colorations having a pure hue, are obtained.

    6.
    发明专利
    未知

    公开(公告)号：DE2132546A1

    公开(公告)日：1973-01-18

    申请号：DE2132546

    申请日：1971-06-30

    Applicant: BASF AG

    Inventor： SCHREMPP KLAUS DR ,  JETTMAR WERNER DR ,  POLSTER RUDOLF DR ,  HARTMANN EDUARD

    IPC: C09B67/00

    Abstract: A method for the production of high tinctorial strength pigment pastes for printing inks or paints from finely ground crude pigments. Printing inks and varnish paints prepared from the pigment paste exhibit not only high tinting strength but also a particularly high brilliance.

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