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    12.
    发明专利
    未知

    公开(公告)号：NO993632L

    公开(公告)日：2000-01-31

    申请号：NO993632

    申请日：1999-07-27

    Applicant: BASF AG

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

    IPC: C04B41/48 ,  C04B41/63 ,  C08F2/26 ,  C09D5/00 ,  C09D7/12 ,  C09D157/00 ,  C09K23/00 ,  C09K23/04 ,  C08L57/00

    Abstract: A method of coating a mineral molding includes applying at least one aqueous preparation to at least one surface of the molding, the aqueous preparation including:(i) as film-forming constituent at least one polymer P which is composed of ethylenically unsaturated monomers M and which is present in dispersed form in the aqueous phase of the aqueous preparation and which has a glass transition temperature TG in the range from -25 to +80° C.;(ii) at least one anionic emulsifier selected from the group consisting of (a), (b), and (c):(a) salts of formula I: whereinAlk is linear or branched, saturated alkyl having from 10 to 18 carbon atoms,Et is 1,2-ethylene,n is an integer from 25 to 40, andM+ is a monovalent cation or a cation equivalent,(b) mixtures of salts of formula I; and(c) mixtures of salts of formula I with other anionic emulsifiers, wherein the salts of formula I make up at least 80% by weight of the anionic emulsifiers; and(iii) at least one nonionic emulsifier.

    14.
    发明专利
    未知

    公开(公告)号：NO991115D0

    公开(公告)日：1999-03-08

    申请号：NO991115

    申请日：1999-03-08

    Applicant: BASF AG

    Inventor： SCHWARTZ MANFRED ,  BECHERT BERTOLD

    IPC: C04B41/48 ,  C04B41/63 ,  C08F20/12 ,  C09D133/06 ,  C04B

    Abstract: Method of coating mineral moldings with film-forming aqueous formulations involves applying first coat(s) containing copolymer(s) (P1) as binder and inorganic pigment(s); optionally drying; then applying coat(s) containing copolymer(s) (P2) as binder and optionally inorganic pigment, in which copolymers P1 and P2 consist of (A) vinyl-aromatic(s) (A1) and/or 1-4 C alkyl methacrylate(s) (A2), (B) 1-12 C alkyl ester(s) (B1) of alpha , beta -ethylenically unsaturated carboxylic acids, other than (A2), and/or vinyl esters (B2) of aliphatic carboxylic acids and optionally (C) other alpha , beta -ethylenically unsaturated monomer(s). The novelty is that P1 and P2 consist of the same monomers A and B and the pigment volume concentration (PVC) of the first formulation is at least 10 times higher than that of the second. Independent claims are also included for (a) the coating formulation system; and (b) mineral moldings coated in this way.

    16.
    发明专利
    未知

    公开(公告)号：NO985213D0

    公开(公告)日：1998-11-09

    申请号：NO985213

    申请日：1998-11-09

    Applicant: BASF AG

    Inventor： ZHAO CHENG-LI ,  SCHWARTZ MANFRED ,  BECHERT BERTOLD ,  WIESE HARM ,  H MMER WOLFGANG

    IPC: C04B41/48 ,  C04B41/63 ,  C08F20/12 ,  C09D133/06 ,  C09D201/02 ,  C09C

    Abstract: An aqueous composition (I) containing a copolymer (II), formed of ethylenically unsaturated monomers, as a film forming component, is used for coating mineral based molded articles. The copolymer (II) has a glass transition temperature of 25-80 degrees C and the monomer contains 0.2-5.0 wt.% itaconic acid. Independent claims are included for: (i) the production of coated, mineral molded articles by application of (I) onto at least one surface of the article and drying; and (ii) the resulting coated, molded article.

    20.
    发明专利
    未知

    公开(公告)号：FI915969A

    公开(公告)日：1992-06-23

    申请号：FI915969

    申请日：1991-12-18

    Applicant: BASF AG

    Inventor： DOTZAUER BERNHARD ,  WISTUBA ECKEHARDT ,  SCHWARTZ MANFRED ,  PETRI ROLF ,  BECHERT BERTOLD ,  DENU HANS-JUERGEN

    IPC: C04B41/48 ,  C04B41/62 ,  C04B41/63 ,  C09D133/06 ,  C04B

    Abstract: A concrete tile (I) is claimed, which is coated with a copolymer (A) with Tg -25 to +30 deg.C, derived from (a) 0.1-10 wt.% monomer of formula R1CH=CR2-CO-X-R3-Z-CHR4R5 (III), (b) 85-99.9 wt.% at least 2 monomers of the type (1-24C alkyl) (meth)acrylates, vinyl esters of 1-20C carboxylic acids, up to 20C vinylaromatics, 3-6C unsatd. nitriles, vinyl halides and/or 2-8C non-aromatic hydrocarbons with olefinic double bond(s), and (c) 0-10 wt.% other Sn-free comonomers; R1, R2 = H or 1-4C alkyl; R3 = 1-20C bridging gp.; R4 = -COR6, -COOR6 or CN; R5 = H, -COR9, -COOR9 or CN; X = O or NR7; Z = single bond, CH2, O, NR8 or -OCO-; (with R6-R9 = H, or 1-12C alkyl, aryl, alkaryl or aralkyl). Also claimed is a process for the prodn. of (I), by application of an aq. prepn. contg. (A) to at least one surface of the green concrete, and drying the prepn. by hardening the concrete. More specifically, monomer (a) is acetylacetoxyethyl (meth)acrylate, acetylacetoxybutyl (meth)acrylate, cyanoacetoxyethyl (meth)acrylate, 1,1-dibenzoyl-2-(meth)acrylamidoethane, 1-benzoyl-1-acetyl-2- (meth)acrylamidoethane, or ethyl alpha-benzoyl-beta-(meth) acrylamidopropionate, and (b) are vinylaromatics or (1-8C alkyl) (meth)acrylates; (I) is coated with a prepn. contg. copolymer (A) and up to 450 wt.% mineral additives (B) and/or colour pigments (C) (w.r.t. amt. of A); another layer of the aq. prepn. is applied to the hardened tile and dried; the amt. of prepn. used is such that the total amt. of dry coating is 50-500 g/m2.

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