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    26.
    发明专利
    未知

    公开(公告)号：FI95366B

    公开(公告)日：1995-10-13

    申请号：FI901035

    申请日：1990-03-01

    Applicant: BASF AG

    Inventor： DOTZAUER BERNHARD ,  BECKERLE WILHELM FRIEDRICH ,  DENU HANS-JUERGEN ,  WENDEL KURT ,  SCHWARTZ MANFRED

    IPC: C04B30/02 ,  C04B41/48 ,  C04B41/63

    Abstract: For moulded bodies, obtainable by impregnation or coating of base mouldings built up mainly from mineral fibres, non-fibrous mineral fillers and starch, with compositions which contain, as binders, copolymers consisting of a) 60 to 95 % by weight of methyl methacrylate (monomer I> b) 5 to 40 % by weight of acrylate and/or methacrylic acid (monomers II> c) 0 to 35 % by weight of one or more acrylates of a C1- to C8-alkanol (monomers III> d) 0 to 5 % by weight of copolymerisable, olefinically polyunsaturated monomers (monomers (IV) and e) 0 to 5 % by weight of other copolymerisable monomers (monomers V) in the polymerised form, the proportions by weight of the monomers I, II, III and V are selected within the indicated limits in such a way that a polymer built up only from these monomers would have a glass temperature of from 60 to 125 DEG C.

    29.
    发明专利
    未知

    公开(公告)号：ES2060716T3

    公开(公告)日：1994-12-01

    申请号：ES89119326

    申请日：1989-10-18

    Applicant: BASF AG

    Inventor： DOTZAUER BERNHARD DR ,  BECKERLE WILHELM FRIEDRICH ,  DENU HANS-JURGEN ,  WENDEL KURT DR ,  SCHWARTZ MANFRED DR

    IPC: B27N3/04 ,  C04B26/06 ,  C08K3/00 ,  C08K3/013 ,  C08K7/00 ,  C08K7/02 ,  C08L33/04 ,  C08L33/12 ,  D21J1/00

    Abstract: The invention relates to the production of mouldings based on a particulate material as additive and an aqueous binding agent containing an acrylate polymer, the additive being moistened with the binding agent, converted into the desired shape and subsequently dried, characterised in that a binding agent is employed whose binder is an acrylate polymer whose glass transition range is relatively high and which is built up from (A) predominantly methyl methacrylate, (B) a minor amount of (meth)acrylic acid, (C) if desired, a minor amount of an alkyl ester of acrylic acid and (D) if desired, a small amount of other specific polymerisable compounds.

    Moulded prods., useful esp. as ceiling boards in damp rooms - contain finely-divided fillers, and condensate(s) of high-mol.wt. poly:carboxylic acid and poly:hydric alcohol, alkanolamine or amine
    30.
    发明专利
    Moulded prods., useful esp. as ceiling boards in damp rooms - contain finely-divided fillers, and condensate(s) of high-mol.wt. poly:carboxylic acid and poly:hydric alcohol, alkanolamine or amine 未知

    公开(公告)号：DE4012947A1

    公开(公告)日：1991-10-31

    申请号：DE4012947

    申请日：1990-04-24

    Applicant: BASF AG

    Inventor： DOTZAUER BERNHARD DR ,  BECKERLE WILHELM FRIEDRICH ,  SCHWARTZ MANFRED DR

    IPC: C08L33/02 ,  C08L33/06

    Abstract: (1) Moulded prods. (I) are claimed contg., as main components, finely-divided natural or synthetic materials (II) and condensation prods. (III) of high-mol. wt. polycarboxylic acids (IV) and polyhydric alcohols, alkanolamines or amines (V). (2) (I) are produced (a) by mechanically mixing (II) with an aq. mixt. of (IV) and (V) as binder, removing excess binder, moulding the resulting prod. and drying at 100-250 deg.C. or (b) by moulding (II) with binder, coating with the above aq. mixt. and dyring as in (b). - (I) contain 0.5-15 wt.% (III) based on equiv. amts. of (IV) and (V) (w.r.t. COOH and OH/amino gps.); (III) are based on polymeric acids contg. 5-50 mol.% COOH-contg. monomer units (pref. with K-value 50-100 in DMF at 25 deg.C.), pref. condensation prods. of (IV) and polymeric polyalcohols with K-value (see above) 40-80, esp. pref. condensates of (IV), trimethylolpropane, glycerol, 2-hydroxymethylbutane-1,4-diol, diethanolamine, triethanolamine, ethylenediamine or tetramethylenediamine; or (III) are condensates of (IV) contg. at least 50 mol.% COOH-contg. monomer units, pref. polymeric acids whose Na salts have K-value 90-130 in water at 25 deg.C. with trimethylolpropane, glycerol or 2-hydroxymethyl-butane-1,4-diol.

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