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    15.
    发明专利
    未知

    公开(公告)号：BRPI0510173A

    公开(公告)日：2007-10-02

    申请号：BRPI0510173

    申请日：2005-04-15

    Applicant: BASF AG

    Inventor： ANDRE VALERIE ,  RIEGER JENS ,  BOUILLO NATHALIE

    IPC: C09B67/00 ,  A61K8/11 ,  A61K8/27 ,  A61Q17/04 ,  A61Q19/00 ,  C01B13/14 ,  C01F7/02 ,  C04B35/111 ,  C09C1/00 ,  C09C1/04 ,  C09C1/24 ,  C09C1/36 ,  C09C3/10 ,  C09D11/00 ,  C09D133/10

    Abstract: The present invention relates to surface-modified nanoparticulate metal oxides where the metal is chosen from the group consisting of aluminum, cerium, iron, titanium, zinc and zirconium, wherein the surface modification comprises a coating with a copolymer P of A) 60 to 99 mol % of an N-vinyllactam and B) 1 to 40 mol % of a monomer chosen from the group of b 1 ) C 8 -C 30 -alkyl esters of monoethylenically unsaturated C 3 -C 8 -carboxylic acids b 2 ) N-alkyl- or N,N-dialkyl-substituted amides of acrylic acid or of methacrylic acid with C 8 -C 8 -alkyl radicals, or b 3 ) vinyl esters of aliphatic C 8 -C 30 -carboxylic acids, or mixtures of these monomers.

    16.
    发明专利
    未知

    公开(公告)号：DE102005025972A1

    公开(公告)日：2006-12-07

    申请号：DE102005025972

    申请日：2005-06-03

    Applicant: BASF AG

    Inventor： RIEGER JENS ,  KISSEL JUTTA ,  ANDRE VALERIE ,  BOUILLO NATHALIE

    IPC: C08K9/04 ,  A61K8/27 ,  A61Q17/04 ,  C01G9/02 ,  C08K3/22

    Abstract: The present invention relates to surface-modified nanoparticulate metal oxides where the metal is chosen from the group consisting of aluminum, cerium, iron, titanium, zinc and zirconium, wherein the surface modification comprises a coating with a copolymer P comprising, as monomers, A) 1 to 99 mol % of a N-vinylamide N-vinylpyrrolidone and B) 99 to 1 mol % of a monomer comprising, per molecule, a free-radically polymerizable α,&bgr;-ethylenically unsaturated double bond and an anionogenic and/or anionic group, with the proviso that the copolymer P must comprise no further monomers chosen from the group consisting of C8-C30-alkyl esters of monoethylenically unsaturated C3-C8-carboxylic acids, N-alkyl- or N,N-dialkyl-substituted amides of acrylic acid or of methacrylic acid with C8-C18-alkyl radicals, or vinyl esters of aliphatic C8-C30-carboxylic acids.

    18.
    发明专利
    未知

    公开(公告)号：NO20054353L

    公开(公告)日：2005-09-27

    申请号：NO20054353

    申请日：2005-09-20

    Applicant: BASF AG

    Inventor： RIEGER JENS ,  MICHL KATHRIN ,  GOTSCHE MICHAEL ,  SCHMIDT KATI

    IPC: B02C23/06 ,  C01F11/18

    Abstract: The use of polyacrylic acid (I) with an average mol. wt. (M w) of 5000-30000 and with end groups containing sulfur and at least 2 carbon atoms, which is at least partly neutralised with alkali metal hydroxide or ammonia, as auxiliary material for the wet-milling of calcium carbonate. Independent claims are also included for finely-divided suspensions of CaCO 3 containing 0.1-2 wt% (I), obtained by wet-milling in presence of (I).

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