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    GONIOCHROMATIC LUSTER PIGMENT, ITS PRODUCTION, AND ITS USE
    1.
    发明专利
    GONIOCHROMATIC LUSTER PIGMENT, ITS PRODUCTION, AND ITS USE 失效

    公开(公告)号：JPH11315219A

    公开(公告)日：1999-11-16

    申请号：JP5417099

    申请日：1999-03-02

    Applicant: BASF AG

    Inventor： SCHMID RAIMUND ,  SEEGER OLIVER DR ,  MRONGA NORBERT DR

    IPC: C09C1/24 ,  C09C1/00 ,  C09C3/06

    Abstract: PROBLEM TO BE SOLVED: To obtain a goniochromatic luster pigment having advantageous coating properties by selecting a pigment based on multiply coated iron oxide platelets each comprising a packet of two colorless coated layers having specified refracting indices. SOLUTION: This pigment is based on multiply coated iron oxide platelets each comprising at least one packet comprising a colorless coating (A) having a refractive index n =2.0 and is obtained by forming coatings A and B on iron oxide platelets by a wet chemical process comprising the independent hydrolysis of organic or inorganic metal compounds or by the gas phase decomposition of volatile organic or inorganic metal compounds. It is desirable that the iron oxide platelets are platelet-like α-iron (III) oxide or magnetite optionally doped with silicon, aluminum and/or manganese. Coating A is made from a lowly refractive colorless substance applicable to iron oxide platelets in the form of a durable coating and is desirably silicon oxide (hydrate). Coating B is made from a highly refractive colorless substance applicable to coating A in the form of a durable coating and is desirably titanium dioxide, titanium oxide hydrate, or the like.

    9.
    发明专利
    未知

    公开(公告)号：DE59204017D1

    公开(公告)日：1995-11-16

    申请号：DE59204017

    申请日：1992-12-03

    Applicant: BASF AG

    Inventor： SCHMID RAIMUND ,  MRONGA NORBERT ,  OCHMANN HARALD ,  ADEL JOERG

    IPC: A61K8/30 ,  A61K8/19 ,  A61K8/25 ,  A61K8/29 ,  A61Q1/02 ,  C08K9/02 ,  C08L9/02 ,  C09C1/00 ,  C09C1/28 ,  C09C3/06

    Abstract: PCT No. PCT/EP92/02793 Sec. 371 Date Jun. 13, 1994 Sec. 102(e) Date Jun. 13, 1994 PCT Filed Dec. 3, 1992 PCT Pub. No. WO93/12182 PCT Pub. Date Jun. 24, 1993Luster pigments based on multiply coated plateletlike silicatic substrates, obtainable by further coating substrates already coated with a first layer comprising a colorless or selectively absorbing metal oxide a) initially with a second, nonselectively absorbing layer consisting essentially of carbon, a metal or a metal oxide, and b) if desired subsequently with a third layer comprising colorless or selectively absorbing metal oxide, wherefor the carbon layer (step a) is applied by thermal decomposition of oxygen-containing hydrocarbons that for every two carbon atoms contain at least one oxygen atom, the metal layer (step a) is applied by gas phase decomposition of volatile compounds of these metals in an inert gas, and the metal oxide layer (step a and/or b) is applied by gas phase decomposition of volatile compounds of these metals in the presence of oxygen, water vapor or mixtures thereof to the substrates coated in case a) with a first metal oxide layer and in case b) additionally with a nonselectively absorbing layer a), and also specific pigments and preparation and use of the luster pigments for coloring paints, printing inks, plastics, decorative cosmetic preparations, glasses and ceramic products.

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