21.
    发明专利
    未知

    公开(公告)号:FI98733B

    公开(公告)日:1997-04-30

    申请号:FI895024

    申请日:1989-10-23

    Applicant: BASF AG

    Abstract: Compositions which can be crosslinked under an atmospheric oxygen atmosphere by means of ultraviolet irradiation and are based on (meth)acrylate copolymers having a K value of from 10 to 100, obtained by free-radical polymerisation in solid phase or solution of a) 5 to 97.4% by weight of i-amyl acrylate and/or i-amyl methacrylate and b) 0 to 89.9% by weight of (meth)acrylates whose hompolymers have a glass transition temperature of below -30 DEG C, c) 2.5 to 30% by weight of alpha , beta -monoolefinically unsaturated compounds whose homopolymers have a glass transition temperature of above - 30 DEG C, d) 0 to 10% by weight of monoolefinically unsaturated acids and/or anhydrides thereof, e) 0 to 20% by weight of further olefinically unsaturated monomers containing at least one of the following functional groups: hydroxyl, amide, epoxide, ether, ester, urethane, urea, primary, secondary or tertiary amine and ether, and f) 0.1 to 5% by weight of a copolymerisable benzophenone or acetophenone derivative, the sum of the percentages by weight x = a + b + c + d + f in each case being 100.

    24.
    发明专利
    未知

    公开(公告)号:FI931929A

    公开(公告)日:1993-10-30

    申请号:FI931929

    申请日:1993-04-29

    Applicant: BASF AG

    Abstract: An aqueous polymer dispersion having a solids volume concentration of at least 50% by volume which is obtainable by polymerisation of monomers by free-radical aqueous emulsion polymerisation with addition of at least two starting polymer dispersions, of which one is both particularly finely divided and contains coarse polymer particles.

    27.
    发明专利
    未知

    公开(公告)号:DE3683603D1

    公开(公告)日:1992-03-05

    申请号:DE3683603

    申请日:1986-11-24

    Applicant: BASF AG

    Abstract: One component system (I), substantially free from protective colloid, based on prim. dispersion of a synthetic polymer (II) and a water-insoluble phenol-aldehyde polycondensate (III) (wherein the aldehyde may be partly replaced by a ketone), and obtd. by mixing the phenolic component of (III) with the dispersion of (II) then polycondensing it with the aldehyde (and ketone if employed) in the mixt., is used to prepare adhesives for heat-resistant bonds. Phenolic component of (III) has solubility less than 10g per 100g water at 20 deg.C and pH below 5, and partic. is bisphenol A, opt. with phenol, alkyl-substd. phenol, and/or hydroxybiphenyl. (II) contains glycidyl, carbonyl, N-methylol, N-alkoxymethyl, ether, amino, and/or hydrazo gps. and opt. also COOH or OH gps. Aldehyde for prepn. of (III) is HCHO, paraformaldehyde, and/or acetaldehyde. Ratio of (II):(III) is 98:2 to 2:1.

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