公开(公告)号：US20180223137A1

公开(公告)日：2018-08-09

申请号：US15320419

申请日：2015-08-17

Applicant: TESA SE

Inventor： Philipp PREUSS ,  Kai ELLRINGMANN

IPC: C09J133/06 ,  C09J133/08

CPC classification number: C09J133/064 ,  C08L93/00 ,  C09J133/08 ,  C09J2201/606 ,  C08F2220/1858 ,  C08F220/06 ,  C08F2222/1013 ,  C08F2222/1026

Abstract: Method for bonding to high polarity surfaces with a pressure sensitive adhesive (PSA) K, being the product of crosslinking a polymer material comprising: (A) at least one polymer component A comprising: (i) 60 wt % to 80 wt % of component A1 comprising: (i-a) 1 wt % to 15 wt % of at least one monomer a comprising compounds having at least one ethylenically unsaturated bond, and (i-b) 85 wt % to 99 wt % of at least one monomer b selected from the group consisting of acrylic esters and/or methacrylic esters, (ii) 20 wt % to 40 wt % of at least one resin component A2, and (B) at least one crosslinker component B comprising covalently crosslinking di- or polyfunctional compounds;  the high polarity surfaces comprising (I) at least one hydroxyl, carbonyl, carboxyl, SH or NH group and/or at least one ionic group, and/or (II) at least one adsorbed migratable compound containing at least one hydroxyl group.

公开(公告)号：US20230279270A1

公开(公告)日：2023-09-07

申请号：US18178031

申请日：2023-03-03

Applicant: tesa SE

Inventor： Philipp PREUSS ,  Arne KOOPS

IPC: C09J7/24 ,  C09J7/25 ,  C09J7/38

CPC classification number: C09J7/24 ,  C09J7/25 ,  C09J7/385 ,  C09J2301/1242 ,  C08K2003/2241

Abstract: Laminates separated after long-term bonding and methods for separating laminates after long-term bonding is provided. The laminates comprise (a) a first adhesive layer, (b) a separation layer, and (c) a second adhesive layer, wherein the separation layer comprises a laser-sensitive pigment which at the same time is coloring, and so preferably a black coloration is produced, and consists of a cured coating material, preferably an electron beam-cured or UV-cured coating material, which is at least partly removable by laser irradiation. The first adhesive layer and/or the second adhesive layer may be laser beam-translucent or may comprise a reactive or latent-reactive adhesive.

公开(公告)号：US20230203351A1

公开(公告)日：2023-06-29

申请号：US18069407

申请日：2022-12-21

Applicant: tesa SE

Inventor： Philipp PREUSS ,  Arne KOOPS

IPC: C09J7/38 ,  C09J7/24

CPC classification number: C09J7/385 ,  C09J7/24 ,  C09J2301/124 ,  C09J2433/006

Abstract: Laminates designed and equipped to be separated after long-term bonding are provided. The laminates comprise a first pressure sensitive adhesive layer, a separation layer, and a second pressure sensitive adhesive layer. The separation layer comprises a laser-sensitive pigment which at the same time is coloring, and so preferably a black coloration is produced, and consists of a cured coating material, preferably an electron beam-cured or UV-cured coating material, which is at least partly removable by laser irradiation, wherein the first pressure sensitive adhesive layer and/or the second pressure sensitive adhesive layer are laser beam-translucent.