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    24.
    发明专利
    未知

    公开(公告)号：DE50307157D1

    公开(公告)日：2007-06-14

    申请号：DE50307157

    申请日：2003-02-21

    Applicant: BASF AG

    Inventor： KOPPERS MARKUS DR ,  PAKUSCH JOACHIM DR ,  ANDERS HERMANN ,  SCHMIDT MARCO ,  DENU HANS-JUERGEN

    IPC: C08F236/00 ,  C04B24/26 ,  C04B28/02 ,  C08F212/00 ,  C08F212/04 ,  C08F212/08 ,  C08F236/04 ,  C08F236/06 ,  C08F236/10 ,  C08F290/06

    Abstract: Polymer dispersion contains a copolymer using as monomer, a conjugated aliphatic diene; a vinylaromatic monomer; an alkanediol monoester with (meth)acrylic acid, or an alkylpolyethylene glycol (meth)acrylate, or a mixture of monoester and acrylate; an ethylenically unsaturated monomer with an acid group or its salts; an unsaturated nitrile; and an unsaturated mono or dicarboxylic acid amide. A polymer dispersion containing at least one copolymer using as monomer (wt.%): (a) at least one conjugated aliphatic diene (25-70); (b) at least one vinyl aromatic monomer (25-70); (c) at least one 2-10C alkane diol monoester with (meth)acrylic acid (2.5-15); or (c') at least one alkylpolyethylene glycol (meth)acrylate (0.1-10) of formula (I); or, (c'') a mixture of monoester (c) and acrylate (c') (2-15); (d) an ethylenically unsaturated monomer with at least one acid group or its salts (0-1.0); (e) an ethylenically unsaturated nitrile (0-5.0); and (f) an amide of an alpha,beta-ethylenically unsaturated mono- or dicarboxylic acids (0-1.0). R1 = H or methyl; R2 = 1-4C alkyl; and n = 1-100. An Independent claim is included for a process for improving the mechanical strength, elasticity, and workability of building materials based on a hydraulic binder, where at least one hydraulic binder, at least one polymer dispersion, and/or a polymer powder or granulate, and optionally water and/or additives are mixed.

    25.
    发明专利
    未知

    公开(公告)号：AT361329T

    公开(公告)日：2007-05-15

    申请号：AT03003881

    申请日：2003-02-21

    Applicant: BASF AG

    Inventor： KOPPERS MARKUS DR ,  PAKUSCH JOACHIM DR ,  ANDERS HERMANN ,  SCHMIDT MARCO ,  DENU HANS-JUERGEN

    IPC: C04B24/26 ,  C04B28/02 ,  C08F212/00 ,  C08F212/04 ,  C08F236/04 ,  C08F236/10 ,  C08F290/06 ,  C08F236/00 ,  C08F236/06 ,  C08F212/08

    Abstract: Polymer dispersion contains a copolymer using as monomer, a conjugated aliphatic diene; a vinylaromatic monomer; an alkanediol monoester with (meth)acrylic acid, or an alkylpolyethylene glycol (meth)acrylate, or a mixture of monoester and acrylate; an ethylenically unsaturated monomer with an acid group or its salts; an unsaturated nitrile; and an unsaturated mono or dicarboxylic acid amide. A polymer dispersion containing at least one copolymer using as monomer (wt.%): (a) at least one conjugated aliphatic diene (25-70); (b) at least one vinyl aromatic monomer (25-70); (c) at least one 2-10C alkane diol monoester with (meth)acrylic acid (2.5-15); or (c') at least one alkylpolyethylene glycol (meth)acrylate (0.1-10) of formula (I); or, (c'') a mixture of monoester (c) and acrylate (c') (2-15); (d) an ethylenically unsaturated monomer with at least one acid group or its salts (0-1.0); (e) an ethylenically unsaturated nitrile (0-5.0); and (f) an amide of an alpha,beta-ethylenically unsaturated mono- or dicarboxylic acids (0-1.0). R1 = H or methyl; R2 = 1-4C alkyl; and n = 1-100. An Independent claim is included for a process for improving the mechanical strength, elasticity, and workability of building materials based on a hydraulic binder, where at least one hydraulic binder, at least one polymer dispersion, and/or a polymer powder or granulate, and optionally water and/or additives are mixed.

    Drying aqueous polymer dispersions
    28.
    发明专利
    Drying aqueous polymer dispersions 未知

    公开(公告)号：DE19539460A1

    公开(公告)日：1997-04-30

    申请号：DE19539460

    申请日：1995-10-24

    Applicant: BASF AG

    Inventor： PAKUSCH JOACHIM DR ,  SCHULER BERNHARD DR ,  MAECHTLE WALTER DR ,  BAUMSTARK ROLAND DR

    IPC: C08F2/22 ,  C08J3/12 ,  C08L33/06 ,  C08L41/00 ,  C08F20/38 ,  C04B24/26 ,  C08F6/14 ,  C08F6/22 ,  C08F20/58

    Abstract: The process for drying aqueous dispersions of a polymer (B), in which the dispersion contains, as auxiliary drying agent, at least one polymer (A) containing (in polymerised form) 80-100 wt.% monomer(s) (a) of formula CH2CR1C(O)XCR2R3-R4-SOH (I) or salts thereof and 0-20 wt.% other radically polymerisable monomer(s) (b), in which R1-3 = H or 1-3 C alkyl; R4 = 1-5 C alkylene; and X = O or NH. Also claimed are: (i) the polymer powder containing (A) and (B); (ii) the mineral binder containing such polymer powder(s); (iii) the synthetic resin-plaster drying preparation containing such powder(s); (iv) the aqueous polymer dispersions of (B) with an emulsifier content of not more than 2 wt.%, containing (A) with a Mw of 5000-35,000 as added dispersant; (v) the process for the radical aqueous emulsion polymerisation of ethylenic monomers, in which (A) with a Mw of 5000-35000 is added before, during or after polymerisation; and (vi) the polymer powder obtained by drying as above.

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