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    VERWENDUNG EINES EINKOMPONENTIGEN LAMINIERKLEBSTOFFS ZUR VERBUNDFOLIENKASCHIERUNG
    12.
    发明公开
    VERWENDUNG EINES EINKOMPONENTIGEN LAMINIERKLEBSTOFFS ZUR VERBUNDFOLIENKASCHIERUNG 审中-公开

    公开(公告)号：EP3405540A1

    公开(公告)日：2018-11-28

    申请号：EP17700213.6

    申请日：2017-01-10

    Applicant: BASF SE

    Inventor： SCHUMACHER, Karl-Heinz ,  TONHAUSER, Christine ,  KIENER, Christoph ,  PREISHUBER-PFLUEGL, Peter ,  KUNTZ, Andrea

    IPC: C09J4/00 ,  C09J133/06 ,  B32B27/30 ,  C08J5/18

    Abstract: The invention relates the use of a single-component laminating adhesive for composite film lamination and a method for composite film lamination. The laminating adhesive contains an aqueous polymer dispersion, that can be produced by radical emulsion polymerisation of monomers comprising (a) at least 60 wt.%, with respect to the total quantity of monomers, of at least one monomer selected from the group consisting of C1 to C20 alkyl acrylates, C1 to C20 alkyl methacrylates, vinyl esters of carboxylic acids containing up to 20 C atoms, vinyl aromatics having up to 20 C atoms, vinyl halides, vinyl ethers of alcohols containing up to 10 C atoms, aliphatic hydrocarbons with 2 to 8 C atoms and one or two double bonds, and mixtures of said monomers, and (b) at least 0.1 wt.%, with respect to the total quantity of monomers, of at least one monomer having at least one acid group, and (c) 0.1 to 5 wt.%, with respect to the total quantity of monomers, of at least one ethylenically unsaturated compound having at least one functional group, selected from keto groups and aldehyde groups; wherein the aqueous polymer dispersion contains at least one compound A which has at least two functional groups which can undergo a cross-linking reaction with keto groups or with aldehyde groups; wherein the molar ratio of the groups of compound A that are reactive with keto groups or with aldehyde groups, to the keto and aldehyde groups of monomer (b), has a value of 1:10 to 2:1; and wherein for the composite film lamination, at least two films are securely adhered to one another using the laminating adhesive, in such a way that the peeling resistance is 2.5 N/15 mm or greater, or such that the films that are adhered together can only be separated by destroying at least one of the films. The composite films can be used for the packing of foodstuffs.

    WÄSSRIGE POLYMERDISPERSION FÜR HAFTKLEBEMASSEN
    13.
    发明公开
    WÄSSRIGE POLYMERDISPERSION FÜR HAFTKLEBEMASSEN 审中-公开

    公开(公告)号：EP3390481A1

    公开(公告)日：2018-10-24

    申请号：EP16819036.1

    申请日：2016-12-14

    Applicant: BASF SE

    Inventor： TONHAUSER, Christine ,  ROSCHMANN, Konrad ,  WULFF, Dirk ,  SANDERS, Gemma ,  SIMANCAS, Kimberly ,  GEORGIEVA, Kristina ,  LICHT, Ulrike ,  HARRER, Heinrich

    IPC: C08G18/48 ,  C08G18/63 ,  C08G18/73 ,  C08G18/76 ,  C08F283/00 ,  C08G18/08

    Abstract: The invention relates to aqueous polymer dispersions for adhesive compounds, to a method for producing same, and to the use of the aqueous polymer dispersions in order to produce adhesives. The aqueous polymer dispersions can be obtained by a method having the steps of A) providing an aqueous dispersion of at least one substantially non-crosslinked polyurethane PU in the form of dispersed polyurethane particles, said polyurethane PU being obtainable by polymerizing polyurethane-forming compounds PU-M containing at least one diol PU-M2 which has at least one poly-C
    2 -C14-alkylene ether group that has at least one repeating unit of the formula (i) -O-CHR
    a -CH
    2 -R
    b - (i), where R
    a represents hydrogen or C
    1 -C
    12 -alkyl, and R
    b represents a bond or C
    1 -C
    3 -alkenyl, wherein R
    a does not represent hydrogen if R
    b is a bond, and the PU has substantially no ethylenically unsaturated double bonds and has a gel content of

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