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：US20180355215A1

公开(公告)日：2018-12-13

申请号：US15780343

申请日：2016-11-24

Applicant: TESA SE

Inventor： Sebastian DIETZE ,  Arne KOOPS ,  Gero MAATZ ,  Uwe SCHÜMANN

IPC: C09J5/04 ,  C09J7/30 ,  C09J7/20 ,  C09J7/28

CPC classification number: C09J5/04 ,  C09J5/00 ,  C09J7/20 ,  C09J7/28 ,  C09J7/30 ,  C09J2205/31 ,  C09J2400/123 ,  C09J2400/163

Abstract: Method of adhesively bonding two surfaces by means of a reactive adhesive film system comprising at least two adhesive films (F1 and F2), each comprising at least one reactive component (R1 and R2), adhesive bonding being effected by a reaction which requires the presence of both reactive components (R1 and R2),wherein, prior to adhesive bonding, a separating layer (T) which is impermeable to the reactive components is provided between the adhesive films which are to be brought into contact with one another for the reaction, and the separating layer (T) is removed at least in part by means of a laser in order to effect bonding, so that the adhesive films (F1 and F2) come into direct contact with one another and the reaction begins in the presence of both reactive components (R1 and R2), and reactive adhesive film system for use in this method.

公开(公告)号：US20180009002A1

公开(公告)日：2018-01-11

申请号：US15552161

申请日：2016-02-22

Applicant: TESA SE

Inventor： Manuel BENDEICH ,  Marcel HÄHNEL ,  Arne KOOPS

IPC: B05D1/00 ,  B29C63/02 ,  B05D5/08 ,  C09J7/02 ,  B05D7/04

CPC classification number: B05D1/62 ,  B05D5/08 ,  B05D7/04 ,  B29C63/02 ,  C09J7/401 ,  C09J2205/31 ,  C09J2423/106 ,  C09J2483/005

Abstract: The invention relates to a method for reducing end face stickiness of a roll (1) of adhesive tape, by supplying a precursor (18) to a plasma stream (20), using the plasma stream (20) enriched with the precursor (18) to coat a carrier film (2) with a passivation coat (3) in a plasma process, placing a carrier film section (5) by its passivation-coated side onto an end face (4) of the roll (1) of adhesive tape, removing the carrier film section (5) and leaving at least part of the passivation coat (6) on the end face (4) and reducing its end face stickiness.