公开(公告)号：US10435594B2

公开(公告)日：2019-10-08

申请号：US15561808

申请日：2016-03-29

Applicant: TESA SE

Inventor： Anna Blazejewski ,  Axel Burmeister ,  Franciska Lohmann ,  Anika Petersen

IPC: C09J7/38 ,  C09J7/10 ,  C09J7/20 ,  C09J5/00 ,  C09J11/08 ,  C09J153/02 ,  C09J5/08 ,  C08K5/01 ,  C08K7/20 ,  B29B7/48

Abstract: The invention relates to a pressure-sensitive adhesive strip, for the residue-free and nondestructive removal by which by substantially expanding it in the plane of adhesion, comprising an adhesive compound layer, said adhesive compound layer consisting of a pressure-sensitive adhesive compound, constituted by vinyl aromatic block copolymers and adhesive resins, at least 75 wt.-% (relative to the total amount of resin) of a resin being selected that has a DACP (diacetone alcohol cloud point) of greater than −20° C., preferably greater than 0° C., and a softening point (ring & ball) of greater than or equal to 70° C., preferably greater than or equal to 100° C., and the pressure-sensitive adhesive compound being foamed.

公开(公告)号：US20220056313A1

公开(公告)日：2022-02-24

申请号：US17404506

申请日：2021-08-17

Applicant: TESA SE

Inventor： Franziska Czerwonatis ,  Franciska Lohmann

IPC: C09J7/25 ,  C09J7/38 ,  C09J5/08 ,  C08G18/76 ,  C08G18/42 ,  C08G18/48 ,  C08L75/06 ,  C08L75/08 ,  C08F220/06 ,  C08F220/18 ,  C08F212/08 ,  C08L53/00

Abstract: The present invention relates to an adhesive tape comprising at least one carrier that has a thickness of 20 to 250 μm, preferably 50 to 150 μm, and has at least one layer (i) based on preferably uncrosslinked thermoplastic polyurethane that has been produced by means of extrusion, wherein the polyurethane is based on aromatic polyisocyanate, such as aromatic diisocyanate in particular, or (ii) based on preferably uncrosslinked polyurethane that has been produced from a dispersion, wherein a pressure-sensitive adhesive layer is disposed on at least one side, preferably both sides, of the carrier. The invention also relates to processes for producing the adhesive tape and to the use thereof for bonding of components in electrical, electronic, optical or precision mechanical devices, such as, in particular, of windows or lenses in housings of precision mechanical, optical and/or electronic devices.

公开(公告)号：US10759974B2

公开(公告)日：2020-09-01

申请号：US16551109

申请日：2019-08-26

Applicant: tesa SE

Inventor： Anna Blazejewski ,  Axel Burmeister ,  Franciska Lohmann ,  Anika Petersen

IPC: C09J7/38 ,  C09J7/10 ,  C09J7/20 ,  C09J5/08 ,  C09J153/02 ,  C09J11/08 ,  C08K5/01 ,  C08K7/22 ,  B29B7/48

Abstract: Pressure-sensitive adhesive (PSA) strips, configured or adapted for the residue-free and non-destructive removal by which by substantially expanding it in the plane of adhesion, are provided. The PSA strips comprise at least one adhesive compound layer consisting of a PSA compound, constituted by vinyl aromatic block copolymers and one or more adhesive resins, at least 75 wt.-% (relative to the total amount of resin) of a resin being selected that has a DACP (diacetone alcohol cloud point) of greater than −20° C., and a softening point (ring & ball) of greater than or equal to 70° C., and the PSA compound has being foamed.

公开(公告)号：US10669455B2

公开(公告)日：2020-06-02

申请号：US15674765

申请日：2017-08-11

Applicant: TESA SE

Inventor： Anna Blazejewski ,  Axel Burmeister ,  Franciska Lohmann ,  Anika Petersen

IPC: C09J7/38 ,  C09J11/08 ,  C09J7/22 ,  C09J153/02 ,  C08K9/10 ,  C09J7/25

Abstract: The invention relates to a pressure-sensitive adhesive strip composed of at least three layers, comprising an inner layer F composed of a non-extensible film carrier, a layer SK1 composed of a self-adhesive composition arranged on one of the surfaces of the film carrier layer F and based on a vinylaromatic block copolymer composition foamed with microballoons, a layer SK2 composed of a self-adhesive composition arranged on the opposite surface of the film carrier layer F from the layer SK1 and based on a vinylaromatic block copolymer composition foamed with microballoons, where the mean diameter of the voids formed by the microballoons in the self-adhesive composition layers SK1 and SK2 is independently 20 to 60 μm.