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103 records (took 0.025 seconds)

    41.
    发明专利
    未知

    公开(公告)号：DE502004001286D1

    公开(公告)日：2006-10-05

    申请号：DE502004001286

    申请日：2004-05-10

    Applicant: BASF AG

    Inventor： PAKUSCH JOACHIM ,  KOPPERS MARKUS ,  GASCHLER WOLFGANG ,  SACK HEINRICH ,  SCHMIDT-THUEMMES JUERGEN ,  DENU HANS-JUERGEN

    IPC: C08J3/12 ,  C04B24/26 ,  C08F6/00 ,  C08J3/16

    Abstract: A process for preparing a polymer powder by evaporating the volatile constituents from an aqueous dispersion of a film-forming polymer P, wherein prior to the evaporation of the volatile constituents the aqueous polymer dispersion still comprises drying assistants T, present in an amount of from 0.1 to 80% by weight, based on the polymer P of the dispersion, and there being used as drying assistant T polyvinylformamide. The polyvinylformamide used preferably has a K value (KW), determined by the method of Fikentscher in accordance with DIN 53726, of from 5 to 50.

    42.
    发明专利
    未知

    公开(公告)号：AT337361T

    公开(公告)日：2006-09-15

    申请号：AT04731922

    申请日：2004-05-10

    Applicant: BASF AG

    Inventor： PAKUSCH JOACHIM ,  KOPPERS MARKUS ,  GASCHLER WOLFGANG ,  SACK HEINRICH ,  SCHMIDT-THUEMMES JUERGEN ,  DENU HANS-JUERGEN

    IPC: C04B24/26 ,  C08F6/00 ,  C08J3/12 ,  C08J3/16

    Abstract: A process for preparing a polymer powder by evaporating the volatile constituents from an aqueous dispersion of a film-forming polymer P, wherein prior to the evaporation of the volatile constituents the aqueous polymer dispersion still comprises drying assistants T, present in an amount of from 0.1 to 80% by weight, based on the polymer P of the dispersion, and there being used as drying assistant T polyvinylformamide. The polyvinylformamide used preferably has a K value (KW), determined by the method of Fikentscher in accordance with DIN 53726, of from 5 to 50.

    45.
    发明专利
    未知

    公开(公告)号：DE10213026A1

    公开(公告)日：2003-10-02

    申请号：DE10213026

    申请日：2002-03-22

    Applicant: BASF AG

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

    IPC: C04B24/26 ,  C04B28/02 ,  C08F212/00 ,  C08F212/04 ,  C08F236/04 ,  C08F236/10 ,  C08F290/06 ,  C08F220/18 ,  C08F220/28

    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.

    47.
    发明专利
    未知

    公开(公告)号：DE10109995A1

    公开(公告)日：2002-09-05

    申请号：DE10109995

    申请日：2001-03-01

    Applicant: BASF AG

    Inventor： OPPENLAENDER KNUT ,  PAKUSCH JOACHIM

    IPC: C04B24/12 ,  C04B28/00 ,  C04B28/02 ,  C09J1/00 ,  C09J11/06

    Abstract: Building materials and adhesive compositions comprise a mineral binding agent and a nitrogen containing compound or its salt. Building materials and adhesive compositions comprise a mineral binding agent and a compound of formula (I) or its salt. R -R = H or 1-40C organic group whereby at least one of R -R is a 10-40C organic group.

    48.
    发明专利
    未知

    公开(公告)号：DE10040825A1

    公开(公告)日：2002-03-07

    申请号：DE10040825

    申请日：2000-08-21

    Applicant: BASF AG

    Inventor： DREHER STEFAN ,  PAKUSCH JOACHIM ,  RECK BERND

    IPC: C04B24/26 ,  C04B103/40 ,  C08F220/12 ,  C08F220/18

    Abstract: The use of ammonia-free, aqueous polymer dispersions (A), containing copolymer(s) (I) dispersible in the aqueous phase, is claimed as an additive for mineral building materials based on hydraulic binders, where (I) is obtained from (by weight): (a) 40-80% acrylic acid-(2-12C) alkanol ester(s); (b) 1-40% vinyl aromatic monomer(s) and/or methacrylic acid-(1-4C) alkanol ester(s); (c) 2-15% (meth)acrylic acid-2-10C alkanediol monoester(s); (d) up to 10% ethylenically unsaturated monomer(s) containing optionally salified acid group(s); (e) less than 5% ethylenically unsaturated nitrile; and (f) less than 1 wt. % alpha , beta -ethylenically unsaturated mono- or dicarboxylic acid amide. Independent claims are included for: (i) the use of polymer powder/granules (A'), obtained by removal of at least 80 wt. % of the volatiles from (A), as an additive as described above for (A); (ii) mineral building materials based on hydraulic binders containing (I), in the form of (A) or (A'), at 0.5-150% based on the dry mineral weight; and (iii) a method for improving the mechanical strength, elasticity and processibility of building materials based on hydraulic binders, involving mixing the binder(s), (A) or (A') and optionally water and/or aggregate.

    49.
    发明专利
    未知

    公开(公告)号：DE19962600A1

    公开(公告)日：2001-07-05

    申请号：DE19962600

    申请日：1999-12-23

    Applicant: BASF AG

    Inventor： DREHER STEFAN ,  PAKUSCH JOACHIM ,  SANDOR MARIO

    IPC: E02B3/04 ,  B01J20/24 ,  B01J20/26 ,  B01J20/28 ,  E02B3/10 ,  C09K3/10 ,  E04H9/14

    Abstract: The invention relates to a protective device against the effects of water, with an at least partly water-permeable shell, which comprises a mixture of sand and a water-insoluble, redispersible, synthetic polymer powder, whereby the polymer has a glass transition temperature of less than 50 DEG C. Said protective device has improved mechanical rigidity and water resistance.

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