公开(公告)号：US20250129275A1

公开(公告)日：2025-04-24

申请号：US18832376

申请日：2023-02-10

Applicant: TESA SE

Inventor： Ralf KRETZMER

IPC: C09J7/38 ,  C09J11/08

Abstract: The invention relates to a pressure-sensitive adhesive comprising: a) one or more poly(meth)acrylates with a weight-average molecular weight Mw of 200,000 g/mol or more in a combined mass fraction of 50% or more, in relation to the mass of the pressure-sensitive adhesive, and b) one or more bonding resins with a weight-average molecular weight Mw of 20,000 g/mol or less in a combined mass fraction in the range of 1 to 25%, in relation to the mass of the pressure-sensitive adhesive, the one or more bonding resins being producible by polymerisation of a first monomer composition comprising, in relation to the mass of the first monomer composition: i) one or more first monomers, which are selected from the group consisting of aromatic (meth)acrylates and styrene, in a combined mass fraction in the range of 5 to 40%, ii) one or more second monomers, which are selected from the group consisting of methyl methacrylate and ethyl methacrylate, in a combined mass fraction in the range of 35 to 68%, and iii) one or more third monomers, which are selected from the group consisting of (meth)acrylates with a cycloaliphatic group, in a combined mass fraction in the range of 5 to 40%.

公开(公告)号：US20230183398A1

公开(公告)日：2023-06-15

申请号：US18085574

申请日：2022-12-21

Applicant: tesa SE

Inventor： Bianca MAYER ,  Benjamin PUETZ ,  Ralf KRETZMER ,  Alexander ENGEL

IPC: C08F120/06 ,  C09J133/08 ,  B32B37/12

CPC classification number: C08F120/06 ,  C09J133/08 ,  B32B37/12 ,  C09J2301/302

Abstract: A pressure-sensitive adhesive for bonding printing plates comprises one or more poly(meth)acrylates in a combined mass fraction of 50% or more and preparable by polymerization of a monomer composition comprising, based on the mass of the monomer composition: i) one or more first monomers selected from acrylic acid, methacrylic acid, dimethylacrylamide, hydroxybutyl acrylate, hydroxypropyl acrylate and hydroxyethyl acrylate in a combined mass fraction in the range from 10%-20%, and ii) one or more second monomers selected from (meth)acrylic esters of the formula (I), CH2═CR1—C(O)O—CHR2R3 (I), where R1 is hydrogen or methyl, where either i) R2 is hydrogen and R3 is a branched alkyl group having 16-20 carbon atoms, or ii) R2 is a linear or branched alkyl group having 3-10 carbon atoms and R3 a linear or branched alkyl group having 6-10 carbon atoms, in a combined mass fraction in the range from 20%-90%.

公开(公告)号：US20210189191A1

公开(公告)日：2021-06-24

申请号：US17126416

申请日：2020-12-18

Applicant: tesa SE

Inventor： Benjamin PÜTZ ,  Ralf KRETZMER

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

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.

公开(公告)号：US20180230342A1

公开(公告)日：2018-08-16

申请号：US15750774

申请日：2016-08-08

Applicant: TESA SE

Inventor： Benjamin PÜTZ ,  Julia SCHWARZBACH ,  Maike STREBL ,  Tobias VON WEDWL-PARLOW ,  Ralf KRETZMER

IPC: C09J109/02 ,  C09J7/25 ,  C09J7/38 ,  C09J5/00

CPC classification number: C09J109/02 ,  C08L9/02 ,  C09J5/00 ,  C09J7/255 ,  C09J7/383 ,  C09J2203/326 ,  C09J2203/334 ,  C09J2205/114 ,  C09J2409/00 ,  C09J2467/006 ,  C08L93/00

Abstract: The invention relates to pressure-sensitive adhesive material which contains as a base polymer at least one or more solid acrylonitrile butadiene rubbers and adhesive resins, wherein the proportion of adhesive resins is in the range from 30 to 130 phr, characterized in that the acrylonitrile content in the solid acrylonitrile butadiene rubber(s) is between 10 and 30 percent by weight.