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    34.
    发明专利
    未知

    公开(公告)号：DE19900459A1

    公开(公告)日：2000-07-13

    申请号：DE19900459

    申请日：1999-01-08

    Applicant: BASF AG

    Inventor： DREHER STEFAN ,  RECK BERND ,  SEUFERT MICHAEL ,  TUERK JOHANNES

    IPC: C08F2/22 ,  C08F265/02 ,  C08F267/02 ,  C09D151/00 ,  C09J151/00 ,  C08J3/03 ,  C08L33/04 ,  C08L25/06 ,  C08L23/20 ,  C08L31/04 ,  C08J3/24 ,  C09D5/34 ,  C09J11/08

    Abstract: Aqueous polymer dispersion comprises: (a) dispersed particles of an olefinic copolymer with 5-20 wt.% alpha , beta -unsaturated mono or di-carboxylic acid units, (b) a dissolved polymer containing 60-100 wt.% unsaturated acid units as in (a), and (c) an alkoxylated amine. It is obtained by emulsion polymerisation of unsaturated monomers in presence of (b) and (c). Aqueous polymer dispersion comprises: (a) dispersed particles of a polymer based on ethylenically unsaturated monomer units, containing 5-20 wt.% alpha , beta -unsaturated mono or di-carboxylic acid, (b) a dissolved polymer containing 60-100 wt.% alpha , beta -unsaturated mono or di-carboxylic acid units (or salt), and (c) an amine of formula (I). R = ≥ 6 C alkyl or alkylene (sic) group or an alkylphenyl group with ≥ 6 C atoms in the alkyl part R' = H or 1-4 C alkyl R'' = 1-4 C alkylene m, n, o = ≥ 0 m, n and/or o = ≥ 1 p = 0 or 1 The dispersion shows weight ratios (based on solid contents) of (a):(b) = (7:1)-(1:7) and (b):(c) = (20:1)-(2:1). It is obtained by emulsion polymerisation of unsaturated monomers in presence of dissolved polymer (b) and amine (c). An Independent claim is also included for a two or three-dimensional formed articles obtained by impregnating a particulate or fibrous substrate with the dispersion and hardening the impregnated substrate.

    35.
    发明专利
    未知

    公开(公告)号：DE19824532A1

    公开(公告)日：1999-12-09

    申请号：DE19824532

    申请日：1998-06-03

    Applicant: BASF AG

    Inventor： HEIDEMANN THOMAS ,  ROSOWSKI FRANK ,  LINDEN GERD ,  SEUFERT MICHAEL ,  HEFELE GERHARD ,  LORZ PETER MICHAEL

    IPC: B01J23/22 ,  B01J27/198 ,  B01J37/02 ,  C07C51/265 ,  C07C51/31 ,  C07C63/16 ,  B01J31/06 ,  C07C51/215 ,  C07C51/255 ,  C07D307/89

    Abstract: The invention relates to a method for producing shell catalysts for the catalytic vapor-phase oxidation of aromatic carboxylic acids and/or carboxylic acid anhydrides comprised of a supporting core and of catalytically active metal oxides which are deposited in a shell-shaped manner on said supporting core. The inventive catalysts are obtained by spraying an aqueous active mass suspension, said suspension containing the active metal oxides, at higher temperatures onto the hot supporting material which has a temperature ranging from 50 to 450 DEG C. The aqueous active mass suspension contains 1 to 10 wt. %, with regard to the solid content of the active mass suspension, of a binding agent comprised of A) a polymerizate obtained by radical polymerization, containing 5 to 100 wt. % of monomers (a) in the form of ethylenically unsaturated acid anhydrides or ethylenically unsaturated dicarboxylic acids whose carboxyl groups can form an anhydride and containing 0 to 95 wt. % monoethylenically unsaturated monomers (b) with the provision that the monomers (a) and (b) comprise, on average, a maximum of 6 carbon atoms which are not functionalized with groups containing oxygen, and of B) an alkanolamine having at least 2 OH groups, a maximum of 2 nitrogen atoms and a maximum of 8 C-atoms, whereby the weight ratio A:B ranges from 1:0.05 to 1:1.

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