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    82.
    发明专利
    未知

    公开(公告)号：NO306610B1

    公开(公告)日：1999-11-29

    申请号：NO915072

    申请日：1991-12-20

    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

    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.

    83.
    发明专利
    未知

    公开(公告)号：NO991115L

    公开(公告)日：1999-09-10

    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 ,  C04B41/65

    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.

    86.
    发明专利
    未知

    公开(公告)号：NO179000C

    公开(公告)日：1996-07-17

    申请号：NO900191

    申请日：1990-01-15

    Applicant: BASF AG

    Inventor： DOTZAUER BERNHARD ,  DERSCH ROLF ,  VINKE JOHANNES ,  HANCIOGULLARI HARUTYUN ,  SCHWARTZ MANFRED ,  BERG VOLKMAR

    IPC: C04B41/64 ,  C04B41/48 ,  C04B41/63 ,  C09D5/00 ,  C09D5/14 ,  E04D1/28

    Abstract: A concrete roof tile is coated with an unfilled or aggregate- and/or pigment-filled film of a copolymer containing (a) from 0.03 to 2% by weight of tin in the form of a polymerizable organotin compound (b) from 0.5 to 5% by weight of (meth)acrylic acid, (meth)acrylamide and/or vinylsulfonic acid and (c) from 0.1 to 5% by weight of carbonyl-containing monomers crosslinked with certain dicarboxodihydrazides, besides (d) at least two (meth)acrylic esters of C1-C8alkanols and/or styrene as copolymerized units in such an amount and such mixing ratios that the copolymer has a glass transition temperature of -15 to +10 DEG C. prior to crosslinking.

    87.
    发明专利
    未知

    公开(公告)号：NO179000B

    公开(公告)日：1996-04-09

    申请号：NO900191

    申请日：1990-01-15

    Applicant: BASF AG

    Inventor： DOTZAUER BERNHARD ,  DERSCH ROLF ,  VINKE JOHANNES ,  HANCIOGULLARI HARUTYUN ,  SCHWARTZ MANFRED ,  BERG VOLKMAR

    IPC: C04B41/64 ,  C04B41/48 ,  C04B41/63 ,  C09D5/00 ,  C09D5/14 ,  E04D1/28

    Abstract: A concrete roof tile is coated with an unfilled or aggregate- and/or pigment-filled film of a copolymer containing (a) from 0.03 to 2% by weight of tin in the form of a polymerizable organotin compound (b) from 0.5 to 5% by weight of (meth)acrylic acid, (meth)acrylamide and/or vinylsulfonic acid and (c) from 0.1 to 5% by weight of carbonyl-containing monomers crosslinked with certain dicarboxodihydrazides, besides (d) at least two (meth)acrylic esters of C1-C8alkanols and/or styrene as copolymerized units in such an amount and such mixing ratios that the copolymer has a glass transition temperature of -15 to +10 DEG C. prior to crosslinking.

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