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    BISMUTH VANADATE PIGMENT AND ITS USE
    2.
    发明专利
    BISMUTH VANADATE PIGMENT AND ITS USE 失效

    公开(公告)号：JP2000086930A

    公开(公告)日：2000-03-28

    申请号：JP25061699

    申请日：1999-09-03

    Applicant: BASF AG

    Inventor： SEEGER OLIVER DR ,  REISACHER HANSULRICH DR ,  MRONGA NORBERT DR ,  ZICKGRAF REINHARD

    IPC: C08K3/24 ,  C08K9/02 ,  C08L101/00 ,  C09C1/00 ,  C09C3/06 ,  C09D1/00 ,  C09D11/00 ,  C08L101/16

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject bismuth vanadate pigment that gives good coating layer properties, particularly stability, for example, good resistance to weather and is useful for paint by forming a coating layer containing a metal fluoride, for example, calcium fluoride or the like. SOLUTION: This pigment provide a coating layer that contains (A) at least one of metal fluoride comprising calcium fluoride, bismuth oxyfluoride, or fluorinated lanthanides or oxyfluorinated lanthanides or their mixture. In addition, this pigment contains (B) at least one of metal oxides selected from alkaline earth metals, aluminum, silicon, tin, titanium, zirconium, hafnium and the like, further, the coating layer preferably includes (C) at least one of metal phosphate (for example, orthophosphate salt). In a preferred embodiment, the objective pigment is prepared by allowing the above-stated coating layer or the like to chemically precipitate on the base pigment through the wet process.

    GONIOCHROMATIC LUSTER PIGMENT, ITS PRODUCTION, AND ITS USE
    3.
    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.

    AQUEOUS COATING COMPOSITION, ITS PRODUCTION, PIGMENT PREPARATION AND USE OF ORGANIC NITRO COMPOUND
    4.
    发明专利
    AQUEOUS COATING COMPOSITION, ITS PRODUCTION, PIGMENT PREPARATION AND USE OF ORGANIC NITRO COMPOUND 失效

    公开(公告)号：JP2000226555A

    公开(公告)日：2000-08-15

    申请号：JP35640899

    申请日：1999-12-15

    Applicant: BASF AG

    Inventor： SEEGER OLIVER DR ,  MRONGA NORBERT DR

    IPC: C09D201/00 ,  C09D5/36

    Abstract: PROBLEM TO BE SOLVED: To obtain an aqueous coating composition which is excellent in stability and color characteristics and is useful for the glossy coatings of automobiles, by compounding a coating film-forming polymer, a metallic pigment, an organic nitro compound, and an organic solvent. SOLUTION: This aqueous coating composition comprises (A) an aqueous or water-dispersible coating film-forming polymer (preferably a polyurethane resin), (B) a metallic resin based on small coated metal plates, (C) an organic nitro compound additionally functionalized with a carboxyl group, a carbonyl group and/or a hydroxyl group, and (D) an organic solvent (preferably an alkylene glycol monoether) capable of dissolving the component C, and other conventional components. The component B preferably contains small metal plates coated with a metal oxide, more preferably small aluminum plates coated with an iron oxide, titanium dioxide and/or a chromium oxide.

    PRODUCTION OF ACYLOXYALKOXYSILANE
    5.
    发明专利
    PRODUCTION OF ACYLOXYALKOXYSILANE 失效

    公开(公告)号：JPH10168083A

    公开(公告)日：1998-06-23

    申请号：JP21779997

    申请日：1997-08-12

    Applicant: BASF AG

    Inventor： FRIEDRICH HOLGER DR ,  LEUTNER BERND DR ,  MRONGA NORBERT DR ,  SCHMID RAIMUND DR

    IPC: C07F7/04

    Abstract: PROBLEM TO BE SOLVED: To directly obtain the subject compound through the one-pot process by reaction between a specific halosilicon, a carboxylic acid salt or its anhydride and an alcohol without isolation of tetracyloxysilane, as side-reactions are suppressed. SOLUTION: A halosilicon of the formula: SiX4 (X is fluorine, chlorine, bromine, iodine) (for example, tetrachlorosilane) is allowed to react with compounds of the formula: MR R is formula I [Z is an unsubstituted, or a halogen- monosubstituted or polysubstituted 1-20C alkyl, a 2-20C alkenyl, a 2-20C alkynyl, a group of formula: -(CH2 )p A (p is 0-6; A is an unsubstituted or alkyl-substituted 3-20 membered hydrocarbon ring)]; M is a metal in I and II main groups in the periodic table} and a compound of the formula: HR [R is the formula O-Y (Y is the same as Z)] or an anhydride of formula II and a compound of the formula: HR to give the objective acyloxyalkoxysilane represented by the formula III (m, n are each 1-3; m+n is 4) through the one-pot process.

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