44.
    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

    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.

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