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    Pressure-sensitive adhesives for bonding flexible printing plates
    1.
    发明授权
    Pressure-sensitive adhesives for bonding flexible printing plates 有权

    公开(公告)号：US10421889B2

    公开(公告)日：2019-09-24

    申请号：US15581514

    申请日：2017-04-28

    Applicant: tesa SE

    Inventor： Benjamin Pütz ,  Nils Thebud ,  Lisa Wieghardt

    IPC: C09J133/08 ,  B41C1/18 ,  C09J5/00 ,  C08L33/08

    Abstract: A pressure-sensitive adhesive comprising at least 60 wt % of a polymer blend, where the polymer blend consists of a first polymer component A, a second polymer component B, and optionally one or more further polymer components (C, D, . . . ), where the first polymer component A is present at not less than x wt % in the polymer blend, where 90≤x≤99, and where the second polymer component B and any further polymer components C, D, . . . present are present in total at y wt % in the polymer blend, where y=100−x, where each polymer component (A, B, C, . . . ) derives to an extent of at least 60 wt % from (meth)acrylic monomers, wherein none of the polymer components (A, B, C, . . . ) is homogeneously miscible at room temperature with any of the other polymer components (A, B, C, . . . ), and so a multi-phase system is present.

    Pressure-sensitive adhesive
    2.
    发明授权
    Pressure-sensitive adhesive 有权

    公开(公告)号：US12264271B2

    公开(公告)日：2025-04-01

    申请号：US16812950

    申请日：2020-03-09

    Applicant: tesa SE

    Inventor： Benjamin Pütz ,  Sarah Zimmermann

    IPC: C09J7/38 ,  C08F18/08 ,  C08F220/06 ,  C08F220/18 ,  C09J123/02 ,  C09J133/08 ,  C09J169/00 ,  C09J193/04

    Abstract: Pressure-sensitive adhesives, adhesive tapes, and methods enable high bond strengths on non-polar or rough substrates. The pressure-sensitive adhesives and methods comprise (a) at least one poly(meth)acrylate, (b) at least one resin A selected from colophony resins and terpene-phenolic resins, (c) at least one hydrocarbon resin B1 having a softening point of greater than 50° C., and (d) at least one hydrocarbon resin B2 having a softening point of less than or equal to 25° C. The adhesive tapes comprise one or more layers of the pressure-sensitive adhesives, and the methods may produce adhesive bonds on substrates with low surface energy and/or on substrates with a mean roughness of at least 5 μm.

    Pressure-sensitive adhesive for paper bonds
    3.
    发明授权
    Pressure-sensitive adhesive for paper bonds 有权

    公开(公告)号：US12054655B2

    公开(公告)日：2024-08-06

    申请号：US17126416

    申请日：2020-12-18

    Applicant: tesa SE

    Inventor： Benjamin Pütz ,  Ralf Kretzmer

    IPC: C09J7/38 ,  C08F220/06 ,  C08F220/20 ,  C08F220/28 ,  C08F226/02 ,  C09J7/21 ,  C09J7/35

    CPC classification number: C09J7/385 ,  C08F220/06 ,  C08F220/20 ,  C08F220/285 ,  C08F226/02 ,  C09J7/21 ,  C09J7/35 ,  C09J2301/30 ,  C09J2433/00

    Abstract: A repulpable pressure-sensitive adhesive useful on polar and apolar papers and storage-stable comprises a polymer whose parent monomer composition comprises:



    a) 10 to 30 wt % of at least one compound of the formula (I)

    CH2═CH—C(O)NR1R2  (I),

    wherein R1 is an unsubstituted alkyl group, a hydroxyalkyl group or an acetonyl radical and R2 is a hydrogen atom, an unsubstituted alkyl group, a hydroxyalkyl group, an acetonyl radical or an aminoalkyl group;
    b) 60 to 80 wt % of at least one compound of the formula (II)

    CH2═CH—C(O)O—(CH2)2—O—R3  (II),

    wherein R3 is an unsubstituted alkyl group, an alkoxyalkyl group or a (polyalkoxy)alkyl group; and
    c) 0.5 to 10 wt % of at least one monomer selected from the group consisting of acrylic acid, methacrylic acid and (C2-C4 hydroxyalkyl) acrylates.




    Also disclosed is an adhesive tape comprising the pressure-sensitive adhesive, and use of the pressure-sensitive adhesive and/or the adhesive tape for producing water-soluble bonds.

    Method for connecting two fiber-reinforced plastic components
    7.
    发明授权
    Method for connecting two fiber-reinforced plastic components 有权

    公开(公告)号：US10696872B2

    公开(公告)日：2020-06-30

    申请号：US15758945

    申请日：2016-09-07

    Applicant: TESA SE

    Inventor： Stephan Bernt ,  Benjamin Pütz

    IPC: C09J7/38 ,  C09J7/24 ,  C09J4/00 ,  C08F220/18 ,  B29C65/50 ,  B29C65/00 ,  B29C70/42 ,  C08J5/00 ,  C08J5/12

    Abstract: The invention relates to an adhesive tape which can be used in particular in a method for connecting two fiber-reinforced plastic components, comprising a carrier material made of polyethylene, wherein a polyacrylate-based self-adhesive compound is applied to one side of the carrier material, said adhesive compound can be reduced to the following reactant mixture containing monomers having the following composition: A1) acrylic acid ester, and/or methacrylic acid ester of the following formula CH2═CH(R1)(COOR2), wherein R1=H or CH3 and R2 is an alkyl chain with 1 to 14 carbon atoms at a proportion of between 65 to 98 wt. %, A2) acrylates and/or methacrylates whose alcohol component contains at least one primary hydroxyl- or carboxyl-group, and/or with acrylate-copolymerizable vinyl compounds containing the at least one primary hydroxyl or carboxyl group at a proportion of between 1 to 20 wt. %, A3) multi-functional isocyanate cross-linker which blocks with thermally reversible protective groups at a proportion of between 1-10 wt. %, A4) and, if the proportions of A1), A2) and A3) do not add up to 100 wt. %, olefinically unsaturated monomers having functional groups, with a proportion of 0 to 15 wt. %.

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