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    Siliceous pigments - for prodn of coloured,matt finishes
    11.
    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.

    HIGHLY CONCENTRATED DUST-FREE SOLID AND EASILY DISPERSIBLE PIGMENT PREPARATIONS AND THEIR USE
    14.
    发明专利
    HIGHLY CONCENTRATED DUST-FREE SOLID AND EASILY DISPERSIBLE PIGMENT PREPARATIONS AND THEIR USE 未知

    公开(公告)号：DE3266876D1

    公开(公告)日：1985-11-14

    申请号：DE3266876

    申请日：1982-12-11

    Applicant: BASF AG

    Inventor： BELDE HORST ,  HARTMANN EDUARD ,  DAUBACH EWALD DR

    IPC: C09B67/00 ,  C09B67/20 ,  C09B67/46 ,  C09D17/00

    Abstract: Highly concentrated, dust-free, solid and readily dispersible pigment formulations contain (a) from 70 to 95% by weight of one or more finely divided pigments, (b) from 5 to 30% by weight of one or more surfactants which possess 20-45% by weight of ethylene oxide units, have a mean molecular weight of from 4,000 to 15,000 and are obtained by reacting an amine of the formula where R is C2-C6-alkylene, R1 is H or C1-C4-alkyl and n is 1, 2, 3, 4 or 5, or R is 1,3-phenylene, 1,4-phenylene or 4,4'-diphenylenemethane, R1 is H and n is 1, with propylene oxide and then reacting the product with ethylene oxide, and (c) from 0 to 5% by weight of waxes and/or antifoams, with or without (d) other agents conventionally used in pigment formulations, the percentages being based on (a+b+c). The formulations are very useful for pigmenting aqueous, alcoholic or aqueous/alcoholic printing inks and surface coatings, and printing pastes for textiles.

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