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    105.
    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.

    108.
    发明专利
    未知

    公开(公告)号：NO20004494D0

    公开(公告)日：2000-09-08

    申请号：NO20004494

    申请日：2000-09-08

    Applicant: BASF AG

    Inventor： SCHWARTZ MANFRED ,  BECHERT BERTOLD ,  WIESE HARM ,  HUEMMER WOLFGANG ,  RECK BERND

    IPC: C04B41/63 ,  C04B41/48 ,  C08F20/18 ,  C04B

    Abstract: The present invention provides for the use of aqueous film-forming formulations comprising at least one copolymer P as film-forming constituent which is present in disperse form in the formulation and is composed of ethylenically unsaturated monomers M, the monomers M comprisingi. from 70 to 99.9% by weight of at least one ester of methacrylic acid with a C1-C10-alkanol andii. from 0.1 to 30% by weight of at least one different monoethylenically unsaturated monomerand at least 50% by weight of the monomers M being other than methyl methacrylate and not more than 1% by weight of the monomers M having two or more ethylenically unsaturated double bonds, for coating mineral moldings.The present invention additionally provides a method of coating the mineral moldings, and also the mineral moldings themselves.

    POLYMER DISPERSIONS
    109.
    发明专利
    POLYMER DISPERSIONS 未知

    公开(公告)号：CA2362465A1

    公开(公告)日：2000-07-13

    申请号：CA2362465

    申请日：2000-01-07

    Applicant: BASF AG

    Inventor： SEUFERT MICHAEL ,  RECK BERND ,  PFAFF CHRISTIAN ,  DREHER STEFAN

    IPC: C08J5/04 ,  C04B26/04 ,  C08F2/20 ,  C08F2/24 ,  C08F265/00 ,  C08L101/02 ,  C09D125/06 ,  C09J125/06

    Abstract: The invention relates to a polymer dispersion containing i) polymer particle s which consist of units of ethylenically unsaturated monomers and are dispers ed in an aqueous medium; ii) a water-soluble polymer polyelectrolyte which on a polymer skeleton carries a plurality of ionic groups having the same chargin g properties or groups which can be ionized such that they form such groups; a nd iii) an ionic tenside which carries an ionic group having the opposite charging properties of the polymer polyelectrolyte or a group which can be ionized such that it forms such a group. The polymer dispersion can be coagulated by simple dilution with water.

    110.
    发明专利
    未知

    公开(公告)号：DK0882093T3

    公开(公告)日：1999-12-20

    申请号：DK97905047

    申请日：1997-02-19

    Applicant: BASF AG

    Inventor： RECK BERND ,  BECKERLE WILHELM FRIEDRICH ,  KISTENMACHER AXEL ,  RUPANER ROBERT ,  WISTUBA ECKEHARDT ,  HUMMERICH RAINER

    IPC: B05D1/00 ,  B27N1/02 ,  B27N3/00 ,  C08F8/30 ,  C08K5/17 ,  C08L33/02 ,  C08L35/00 ,  C08L57/00 ,  C08L97/02

    Abstract: PCT No. PCT/EP97/00768 Sec. 371 Date Aug. 21, 1998 Sec. 102(e) Date Aug. 21, 1998 PCT Filed Feb. 19, 1997 PCT Pub. No. WO97/31059 PCT Pub. Date Aug. 28, 1997A method for forming shaped products by mixing a formaldehyde-free aqueous binder comprising A) a free-radically polymerized polymer containing from 5 to 100% by weight of units derived from an ethylenically unsaturated acid anhydride or from an ethylenically unsaturated dicarboxylic acid whose carboxyl group can form an anhydride group, and B) an alkanolamine having at least two hydroxyl groups, with fibers or chips to form a shaped article, wherein said binder has a property of drying at 50 DEG C. in 72 hours to a film from 0.3 to 1 mm in thickness and, following a subsequent 15 minute cure at 130 DEG C. in air, has a gel content of above 50% by weight, wherein the binder includes less than 0.1% by weight, based on A)+B), of a phosphorus-containing reaction accelerant with fibers or chips.

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