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    PRESSURE-SENSITIVE ADHESIVE FOR BONDING PRINTING PLATES
    1.
    发明公开
    PRESSURE-SENSITIVE ADHESIVE FOR BONDING PRINTING PLATES 审中-公开

    公开(公告)号：US20240360346A1

    公开(公告)日：2024-10-31

    申请号：US18646409

    申请日：2024-04-25

    申请人： tesa SE

    发明人： Waldemar Schmidt ,  Eugen Fomenko ,  Ralf Kretzmer ,  Kai Ellringmann ,  Bianca Mayer

    IPC分类号： C09J7/38 ,  C09J133/08

    CPC分类号： C09J7/385 ,  C09J133/08 ,  C09J2301/50

    摘要： A pressure-sensitive adhesive for bonding printing plates, comprising one or more copolymers in a combined mass fraction of 30% or more, based on the mass of the pressure-sensitive adhesive, where the one or more copolymers are preparable by polymerizing a monomer composition and optionally subsequently crosslinking the polymers, where the monomer composition, based on the mass of the monomer composition, comprises: i) one or more specific first monomers in a combined mass fraction in the range from 5% to 15%, ii) one or more specific second monomers in a combined mass fraction of 70% or more, and iii) one or more specific third monomers in a combined mass fraction in the range from 5% to 15%.

    Pressure-sensitive adhesive for paper bonds
    5.
    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

    申请人： tesa SE

    发明人： Benjamin Pütz ,  Ralf Kretzmer

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

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

    摘要： 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.

    Acrylic pressure-sensitive adhesive and also adhesive tape furnished with acrylic pressure-sensitive adhesive
    7.
    发明公开
    Acrylic pressure-sensitive adhesive and also adhesive tape furnished with acrylic pressure-sensitive adhesive 审中-公开

    公开(公告)号：US20240076529A1

    公开(公告)日：2024-03-07

    申请号：US18461352

    申请日：2023-09-05

    申请人： TESA SE

    发明人： Eugen FOMENKO ,  Franziska EBERHARDT ,  Kane STAPELFELDT ,  Jan-Hendrik JENSEN ,  Daniel SCHMITZ-STAPELA

    IPC分类号： C09J133/08 ,  C09J7/21 ,  C09J7/38

    CPC分类号： C09J133/08 ,  C09J7/21 ,  C09J7/385 ,  C08K5/3412 ,  C09J2203/31 ,  C09J2301/122 ,  C09J2301/302

    摘要： An acrylic pressure-sensitive adhesive was to be provided that finds use especially in a reversible adhesive tape that is redetachable without leaving any residue, the adhesive tape having a particularly flat paper backing with high air permeability, and thus gives rise to particularly precise and flat paint edges when applied. This is achieved by an acrylic pressure-sensitive adhesive based on polymers having the following monomer composition:



    (a) 97% to 99% by weight of monomers from the group comprising 2-ethylhexyl acrylate or 2-octyl acrylate or n-heptyl acrylate or mixtures of at least two of said monomers,
    (b) 1% to 3% by weight of (meth)acrylic acid

    and further comprising a crosslinking system, wherein the ratio of the reactive crosslinking groups and the carboxy groups of (meth)acrylic acid (b) is less than or equal to 7% and wherein the polymers are produced by emulsion polymerization.





    The invention also provides an adhesive tape comprising a backing and—applied to at least one side of the backing—an acrylic pressure-sensitive adhesive of the invention in the form of a dried polymer dispersion and also the use of such an adhesive tape.

    PRESSURE-SENSITIVE ADHESIVE COMPOSITION
    10.
    发明公开
    PRESSURE-SENSITIVE ADHESIVE COMPOSITION 审中-公开

    公开(公告)号：US20230295473A1

    公开(公告)日：2023-09-21

    申请号：US18021301

    申请日：2021-08-16

    申请人： tesa SE

    发明人： Jos TASCHE ,  Andre RELLMANN-SPRINK

    IPC分类号： C09J7/38 ,  C09J133/08 ,  C09J133/10

    CPC分类号： C09J7/385 ,  C09J133/08 ,  C09J133/10

    摘要： Disclosed is a pressure-sensitive adhesive composition which exhibits good adhesive forces, in particular on polar adhesive substrates, and good shear strength, and a significant proportion of which can be produced from bio-based raw materials. The pressure-sensitive adhesive composition comprises: at least one copolymer which can be traced to a monomer composition comprising a) 45-75 wt. % of at least one monomer selected from i-amyl acrylate, n-heptyl acrylate, and 2-octyl acrylate, b) 24-50 wt. % of at least one alkyl (meth)acrylate, the alcohol component of which has 1 to 4 carbon atoms, and c) 0.5 to 10 wt. % of acrylic acid; and at least one adhesive force-enhancing resin. Also disclosed is an adhesive tape comprising a carrier material and the pressure-sensitive adhesive composition; and the use of the pressure-sensitive adhesive composition or the adhesive tape to produce adhesive bonds in electronic, optical and/or precision mechanical devices.