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    54.
    发明专利
    未知

    公开(公告)号：DE50002904D1

    公开(公告)日：2003-08-21

    申请号：DE50002904

    申请日：2000-01-07

    Applicant: BASF AG

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

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

    Abstract: A description is given of a polymer dispersion comprising i) polymer particles dispersed in an aqueous medium and composed of units of ethylenically unsaturated monomers, ii) a water-soluble polymeric polyelectrolyte which along a polymeric backbone carries a large number of ionic groups of uniform charge character or groups which can be ionized to such groups, and iii) an ionic surfactant which carries an ionic group having a charge character opposite to that of the polymeric polyelectrolyte, or a group which can be ionized to such a group. The polymer dispersion can be coagulated by simple dilution with water.

    A new binder for finely divided materials, useful for preparation of flat-shaped articles from finely divided materials, comprises the reaction product of di or tricarboxylic acid or its anhydride with ammonia
    57.
    发明专利
    A new binder for finely divided materials, useful for preparation of flat-shaped articles from finely divided materials, comprises the reaction product of di or tricarboxylic acid or its anhydride with ammonia 未知

    公开(公告)号：DE10101944A1

    公开(公告)日：2002-07-18

    申请号：DE10101944

    申请日：2001-01-17

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS ,  GERST MATTHIAS ,  RECK BERND

    IPC: C08G73/10 ,  C08L79/08 ,  C09D5/12 ,  C09D177/00 ,  C09D123/00 ,  C08J5/04 ,  C08J3/24 ,  D04H1/42

    Abstract: A new binder for finely divided materials which does not emit formaldehyde on processing, is obtained from a composition which contains the reaction product of a di or tricarboxylic acid or its anhydride with ammonia and if necessary a primary amine and/or a compound having at least two OH groups, or as precursor of this reaction product, or a mixture of this di or tricarboxylic acid or its anhydride with a substance which releases ammonia on heating. The use of a composition containing: (i) at least one polycarboxylic acid of formula (I) with (ii) ammonia and if necessary (iii) primary amines and/or compounds with at least two OH groups, and/or a mixture of at least one polycarboxylic acid of formula I and/or its anhydride and at least one substance which releases ammonia on heating and if necessary primary amines and/or compounds with at least two OH groups. R = H or CH2COOH, X = OH or NH2 when Y =H, Y = OH or NH2 when X = H, or X and Y together = a pi -bond, and or an anhydride of polycarboxylic acid (I). Independent claims are included for: (1) a thermally hardenable substance containing at least one reaction product from (i) at least one polycarboxylic acid of formula (I), and R, X, Y, (ii), and (iii) are as defined above, and in addition, at least one further constituent selected from finely divided polymerisates of ethylenically unsaturated monomer , compounds with at least two OH groups, and polycarboxylic acid polymers; (2) a process for preparation of shaped bodies from finely divided materials, by impregnation or mixing of the finely divided material with the composition described above at 120 deg C; (3) a shaped body obtained as above; and (4) a flat-shaped article obtained as above.

    60.
    发明专利
    未知

    公开(公告)号：NO20004494L

    公开(公告)日：2000-10-30

    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

    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.

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