Tesa Se

Nils Utesch

Stephan Zöllner

Marc Husemann

CHristoph Nagel

Axel Burmeister

Kai Ellringmann

Stefan Wulf

Kristin Kerber

Franziska Czerwonatis

Alexander Herrmann

The present invention relates to the use of an adhesive compound, in particular a pressure-sensitive adhesive compound, based on silylated polyurethanes for bonding optical components, in particular optical films, wherein the adhesive compound has a transmission according to ASTM D 1003 of greater than 86% and a haze according to ASTM D 1003 of less than 5%.

Pressure-sensitive adhesive compound

The present invention relates to the use of an adhesive tape for adhesively bonding photovoltaic modules, more particularly for adhesively bonding a PV laminate in the frame of a PV module, where the adhesive tape has at least one adhesive layer and where there is at least one polymer layer comprising a foaming agent.

Adhesive tape, particularly for bonding photovoltaic modules

The invention relates to pressure-sensitive adhesive tapes for flying splice of flat web materials, having at least one splittable carrier and two layers of adhesive, at least one of the adhesives being a silicone PSA, more particularly an electron-beam-crosslinked silicone PSA, and also to a method of producing them. The silicone PSA advantageously has at least one polydiorganosiloxane having the structure &#x2014;Si(R)&#x2014;O&#x2014;[Si(R)&#x2014;O]&#x2014;Si(R)&#x2014;, where the 2n+4 substituents R independently of one another are monovalent hydrocarbon radicals and n is an integer, and also at least one resin ('MQ resin') constructed from (R)SiO&#x2014; units ('M units') and SiOunits (&#x201c;Q units&#x201d;), the substituents Rof the M units being independently of one another alkyl groups, alkenyl groups, alkylsilyl groups, hydroxyl groups or hydrogen.

PSA tapes for splicing flat web materials

A Polyacrylate having an at least bimodal molecular weight distribution is disclosed. The polyacrylate is characterized by at least two maxima in the molar mass distribution curve, at points Mand M, with M&#x3e;M, in which, viewed formally, there are at least two polymers, Pand P, each having its own molecular weight distribution, the polymer Ppossessing a most frequent molar mass M(P) and the polymer Ppossessing a most frequent molar mass M(P), where M(P)&#x3e;M(P), at least the polymer Pbeing based on a monomer mixture comprising at least one monomer type selected from the group of the acrylic esters and of the methacrylic esters of the general formula HC&#x2550;CR&#x2014;COORwhere R&#x2550;H or CHand where Rrepresents an aliphatic hydrocarbon chain having 4 to 15 carbon atoms; and at least one olefinically unsaturated monomer type containing functional groups, wherein the functional groups of the at least one olefinically unsaturated monomer type are groups which are able to react for a thermal crosslinking reaction, and at least the polymer Phas copolymerized monomers of the olefinically unsaturated monomer type containing groups that are reactive for a thermal crosslinking reaction, and is capable under the influence of thermal energy, where appropriate with addition of a catalyst, of entering into a crosslinking reaction.

Bimodal acrylate PSA for bonding low-energy and rough surfaces

Use of a double-sided adhesive tape for fastening silicone rubbers, the adhesive tape having a backing and two layers of adhesive, the first layer of adhesive being composed of an acrylate-based pressure-sensitive adhesive and the second pressure-sensitive adhesive being composed of a crosslinked pressure-sensitive silicone adhesive.

Growing community of inventors

Hamburg, Germany

Nils Utesch