Tesa Se

Anika Petersen

Axel Burmeister

Thilo Dollase

Anna Blazejewski

Franciska Lohmann

Klaus Keite-Telgenbüscher

Thorsten Krawinkel

Jan Ellinger

Judith Grünauer

Stephan Zöllner

Bernd Lühmann

Kai Ellringmann

Minyoung Bai

Andreas Westphal

Daniel Schmitz-Stapela

Tanja Altenwegner

Lesmona Scherf

Elisabetta Ardente

Franziska Eberhardt

Franciska Lohmann-Rademacher

Mathias Hoser

Michael Mayer

Tanja Striberny

Rolf Brix

The invention relates to adhesive strips consisting of at least four, particularly precisely four layers, comprising: a layer A having an upper side and a lower side consisting of a foamed adhesive substance containing a self-adhesive acrylate substance; a layer B consisting of a film carrier, layer B being arranged on the lower side of layer A, at least the main surface which faces layer A, preferably both main surfaces of the film carrier, being etched, the surface of layer A and the surface of layer B being in direct contact with each other; a layer C consisting of a self-adhesive substance, arranged on the upper side of layer A and containing a self-adhesive acrylate substance; and a layer D consisting of a self-adhesive substance, arranged on the side of layer B opposite layer A and containing a self-adhesive acrylate substance.

Adhesive strips

The invention relates to an adhesive film strip comprising at least two, particularly three, layers, which adhesive film strip can be detached without residues and nondestructively by expansive stretching substantially in the adhesion plane, with a carrier on which a first external adhesive compound layer is present on at least one side, wherein &#x2022; the adhesive compound layer consists of adhesive compound formed on the basis of vinyl aromatic block copolymers and adhesive resins, wherein at least 75% of the resin (relative to the overall resin content) is selected with a DACP (diacetone alcohol cloud point) of greater than &#x2212;20&#xb0; C., preferably greater than 0&#xb0; C., and &#x2022; the carrier has at least one layer consisting of a polyurethane with an elongation at break of at least 100% and a restoring power of more than 50%. A nonpolar hydrocarbon resin or a polyterpene resin is particularly used as the tackifier for the adhesive compound(s).

Detachable adhesive strip

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 &#x2212;20&#xb0; C., and a softening point (ring & ball) of greater than or equal to 70&#xb0; C., and the PSA compound has being foamed.

Removable pressure-sensitive adhesive strip

A single- or double-sidedly bonding adhesive-sheet strip having a self-adhesive composition comprising a) at least one elastomer, at least one type of polybutadiene block copolymer being used as an elastomer, b) at least one partially hydrogenated hydrocarbon resin having a softening temperature of at least 90&#xb0; C., c) at least one additional hydrocarbon resin, a terpene phenol resin and/or a colophonium resin having a softening temperature of at least 90&#xb0; C., d) an optional soft resin, and e) additional additives as applicable.

Self-adhesive compound and use thereof in an adhesive tape

The invention relates to a pressure-sensitive adhesive strip composed of at least three layers, comprising

Pressure-sensitive adhesive strip

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 &#x2212;20&#xb0; C., preferably greater than 0&#xb0; C., and a softening point (ring & ball) of greater than or equal to 70&#xb0; C., preferably greater than or equal to 100&#xb0; C., and the pressure-sensitive adhesive compound being foamed.

The aim of the invention is to effectively protect a flat adhesive compound from permeates originating from the surroundings as well as from permeates trapped during lamination, winding, stacking or other processing steps. For this purpose, the adhesive tape comprises at least the following layers in the indicated order: a first outer adhesive compound layer A, a layer B, which contains at least one inorganic getter material, and a second outer adhesive compound layer C. The invention also relates to the use of said adhesive tape as an encapsulation material.

Adhesive tape containing getter material

Composite made of two substrates for use for optical, electronic and/or precision-engineered equipment, comprising a first substrate and a second substrate and, arranged so as to connect the first substrate to the second substrate, an adhesive layer, wherein the adhesive layer comprises an adhesive which has, relative to the mixture, (a) from 60% by weight to 90% by weight of a first polymer component based on polyacrylate and (b) from 10% by weight to 40% by weight of a second polymer component based on elastomers, where the second polymer component is essentially not miscible with the first polymer component, so that the adhesive is present in at least two separate phases in the adhesive layer.

Pressure-sensitive adhesive tapes for the adhesive bonding of windows more particularly in mobile equipment

The invention relates to a method for protecting an electronic arrangement which is disposed on a substrate and comprises organic constituents, where a cover is applied to the electronic arrangement in such a way that the electronic arrangement is at least partly covered by the cover, the cover being bonded at least over a partial area to the substrate and/or to the electronic arrangement, the adhesive bond being produced by means of at least one layer of an adhesive in an adhesive tape, characterized in that the adhesive comprises a getter material which is capable of at least one permeable substance, the getter material being present in the adhesive in a proportion of not more than 2 wt %, based on the adhesive with the getter material.

Growing community of inventors

Bimöhlen, Germany

Anika Petersen