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    Formaldehyde-free binder for mouldings
    71.
    发明专利
    Formaldehyde-free binder for mouldings 未知

    公开(公告)号：AU1874597A

    公开(公告)日：1997-09-10

    申请号：AU1874597

    申请日：1997-02-19

    Applicant: BASF AG

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

    AQUEOUS SYNTHETIC RESIN FORMULATIONS
    76.
    发明专利
    AQUEOUS SYNTHETIC RESIN FORMULATIONS 未知

    公开(公告)号：AU625748B2

    公开(公告)日：1992-07-16

    申请号：AU6247790

    申请日：1990-09-12

    Applicant: BASF AG

    Inventor： REHMER GERD ,  RAU MARIA GYOPAR ,  WISTUBA ECKEHARDT ,  BAECHER REINHARD ,  MATTHAEI LOTHAR

    IPC: C08K3/00 ,  C08F2/22 ,  C08K5/07 ,  C08K5/132 ,  C08L31/02 ,  C08L31/04 ,  C08L33/04 ,  C08L33/06 ,  C09D131/02 ,  C09D131/04 ,  C09D133/06 ,  C09J131/02 ,  C09J131/04 ,  C08L33/08 ,  C08L25/14 ,  C08K3/26 ,  C09D133/08 ,  C09D125/14 ,  C08F2/00 ,  C08F220/18

    Abstract: Aqueous synthetic resin formulations essentially contain A) from 3 to 75% by weight of one or more synthetic resins which are composed of a) from 50 to 99.9% by weight of one or more unsaturated carboxylic or vinyl esters, b) from 0.1 to 12% by weight of one or more alpha , beta -monoethylenically unsaturated monobasic or dibasic acids or their ahydrides, c) from 0 to 10% by weight of one or more monoethylenically unsaturated acetophenone or benzophenone derivatives, d) from 0 to 35% by weight of one or more other copolymerizable monoethylenically unsaturated monomers, in polymerized form, B) one or more metal cations having a charge of from 2 to 4, in water-soluble form, C) from 0 to 10% by weight, based on the synthetic resin A, or benezophenones or acetophenones which are not monoethylenically unsaturated, D) effective amounts of emulsifiers or protective colloids or a mixture of these active ingredients, E) not less than 5% by weight of water and F) from 0 to 85% by weight of finely divided fillers, and the total amount of the cations B is such that it is capable of neutralizing from 0.2 to 6 times the amount, corresponding to the amount of acid functions incorporated in the form of the monomers b in the synthetic resin A, of their conjugated bases. These synthetic resin formulations are suitable for coating, adhesive bonding, sealing or impregnating.

    77.
    发明专利
    未知

    公开(公告)号：NO170088B

    公开(公告)日：1992-06-01

    申请号：NO855167

    申请日：1985-12-19

    Applicant: BASF AG

    Inventor： KOSSMANN HERIBERT ,  MATTHAEI LOTHAR ,  LEY GREGOR ,  WISTUBA ECKEHARDT ,  WULGARIS SAVAS

    IPC: C09D5/00 ,  C09D5/02 ,  C09D15/00 ,  C09D125/00 ,  C09D125/04 ,  C09D125/14 ,  C09D127/04 ,  C09D133/02 ,  C09D133/04 ,  C09D133/06 ,  C09D135/00 ,  C09D157/00 ,  B27K3/34

    Abstract: Binders for aqueous primers for wood paints contain (A) from 50 to 95% by weight, based on the weight of the primer, of an aqueous dispersion of a vinyl polymer having a particle size of from 0.03 to 0.5 mu m and a minimum film-forming temperature of from 0 DEG to 50 DEG C., the said dispersion being stable to polyvalent ions, and (B) from 5 to 50% by weight, based on the weight of the primer, of a water-soluble polymeric zinc amine complex of a copolymer which has a K value of from 8 to 40 and consists of (a) from 20 to 60% by weight, based on the weight of the copolymer, of an alpha , beta -monoethylenically unsaturated mono- and/or dicarboxylic acid of 3 to 5 carbon atoms and (b) from 40 to 80% by weight, based on the weight of the copolymer, of styrene and/or one or more alkyl (meth)acrylates, where alkyl is of 1 to 8 carbon atoms, the copolymer being reacted with from 2 to 6 moles, based on the carboxyl groups of the copolymer, of ammonia and from 0.8 to 1.2 equivalents of a zinc compound per carboxyl group of the copolymer.

    78.
    发明专利
    未知

    公开(公告)号：NO915072D0

    公开(公告)日：1991-12-20

    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 ,  C09D133/00

    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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