Tesa Se

Tesa Ag

Bayer Aktiengesellschaft

Tesa Scribos Gmbh

Bernhard Müssig

Stefan Stadler

Rolf Dhein

Rolf-Volker Meyer

Bernd Lühmann

Michael Egger

Herbert Sinnen

Uwe Schümann

Alexander Prenzel

Bert Brassat

Uwe Michel

Dieter Wenninger

Nicolai Böhm

Stefan Röber

Steffen Noehte

Karl-Heinz Hentschel

Sven Hansen

Michael Siebert

Siegfried Kussi

Andreas Westphal

Matthias Seibert

Ingo Neubert

Jobst-Waldemar Klemp

Dennis Seitzer

Gero Maatz

André Galle

Ulrike Wappler

Alexander Herrmann

Ilse Rodewald

Yeliz Tepe

Nicole Behrens

Klaus Külper

Frank Virus

J&ouml;rn Leiber

Johannes Steinforth

Kerstin Metzler

Aliona Melnikova

Sebastian Schmidt-Lehr

Ingolf Schütz

Philip Schultz

Mark Hänle

Falk Hunger

Aranzazu Escudero Vallejo

Michael Stromann

Petra Yun

David Tuffe

The intention is to provide powerful pressure sensitive adhesives with high adhesion and adjustable cohesive failure characteristics. This is accomplished with pressure sensitive adhesives which comprise

Pressure sensitive adhesive

The invention relates to a composite for production of an acoustic membrane, wherein the composite comprises an internal carrier layer and at least two adhesive layers on the two surfaces of the carier layer, and wherein the carrier layer is a layer of a polyaryl ether ketone film; and also to a corresponding membrane for acoustic transducers.

Composite for production of an acoustic membrane and acoustic membrane

A multi-layered laminate for producing membranes for electroacoustic transducers, comprises a first layer of a polyether ether ketone film having a heat of crystallisation of at least 15 J/g, a second layer (of a thermoplastic plastic film having a heat of crystallisation of no more than 5 J/g, and an adhesive layer arranged between the first and second layers. Alternatively, the first and second layers are defined by their shrinkage properties after 15 minutes at 200&#xb0; C.: the first layer has shrinkage of more than 10% in at least one direction, and the second layer has shrinkage of less than 10% in the longitudinal and transverse directions. A laminate constructed in this manner exhibits lower fold formation when processed using multi-cavity thermoforming. The laminates are useful for the production of membranes for electroacoustic transducers.

Asymmetrical multi-layered membrane for electroacoustic transducers

The invention relates to a multi-layer composite for the production of membranes for electroacoustic transducers, comprising a first and second cover layer, a first and second damping layer and a separating layer, the first and the second damping layer consisting of adhesive compositions the respective glass transition temperatures TG (DSC) of which differ by at least 10 K.

Multi-layer laminate with high internal damping

A method provides an adhesive strip to protect metal surfaces from corrosion. The adhesive strip has a layer of olefin polymer with a density between 0.86 g/cmand 0.91 g/cmand a crystallite melting point of at least 105&#xb0; C. The adhesive strip is applied onto a metal surface, and the strip is heated such that the layer is molten, thereby forming a corrosion protection layer for the metal surface.

Method for corrosion protection treatment

Deep-drawn membranes formed of polyester or polycarbonate films, comprising units of Formula (I) and (II), useful for acoustic signal converters as microphones and speakers. The film can be produced by thermoplastic processes or solvent cast processes. Especially suitable for the production of small membranes with a diameter of up to 10 cm useful in mobile devices as microphones, mobile telephones, laptops, personal digital assistants (PDAs), headphones or as signal transmitters 

Films and membranes for acoustic signal converter

The present invention relates to a film arrangement featuring a layer A and a layer B, layer A and layer B being of polymer-based formation, and layers A and B being unstretched. It is proposed that layer A and layer B have different tension sets from one another, that layer A has a tension set of at least 60% and that layer B has a tension set of not more than 50%.

Film arrangement

Adhesive tape having a carrier and a layer of adhesive applied on at least one side to the carrier, the carrier having at least one foam layer composed at least in part of a polyolefin-based polymer, wherein the polyolefin-based polymer contains an ethylene multi-block copolymer in a fraction of at least 40% (w/w), the ethylene multi-block copolymer being composed of hard segment blocks, containing at least 95% (w/w) of ethylene and a comonomer, and of soft segment blocks, containing ethylene and a comonomer, the fraction of comonomer in the soft segment blocks being between 10 and 20 mol %.

Method of mounting a printing plate to an impression cylinder

Liner comprising a film which comprises oriented polypropylene having a flexural modulus of at least 1400, preferably at least 2000 MPa, a release coating being applied on at least one of the two outer sides of the film.

Liner and also the use thereof

The invention relates to a film, in particular for an adhesive tape, characterized in that the film contains at least one homopolymer, copolymer, or terpolymer of the propylene and fibers and is monoaxially stretched in the longitudinal direction, wherein the elongation ratio is preferably at least 1:8 and particularly preferably at least 1:9.5.

Film made of polypropylene, use thereof, and method for the production of the film

Self-adhesive protective film for the exterior of painted vehicles, especially cars, characterized in that

Self-adhesive protective film with olefin rubber adhesive

A self-adhesive tape comprising an oriented polyolefin film, one side of which is coated with an adhesive layer formed from a mixture of 30-65 wt. % of a natural rubber latex and 35-70 wt. % of an aqueous dispersion of a hydrocarbon resin, and the opposite side of which has no surface treatment.

Adhesive tape having one side coated with an adhesive, and no surface treatment on the opposite side

A self-adhesive surface protective film, particularly for automobile paint surfaces, having a backing layer and a self-adhesive layer based on a crosslinked polyurethane, characterized in that the loss angle tan &#x3b4; of the polyurethane at room temperature in the frequency interval from 10to 10rad/sec rises or remains at the same level.

Surface protecting film for painted surfaces, comprising polyurethane-based pressure-sensitive composition

An example data storage medium includes an optical information carrier which comprises a polymer carrier, which is set up to store information, and, additionally, a layer. The layer comprises a dye and can be optically changed locally for the purpose of storing information.

Data storage medium including optical information carrier

An adhesive tape comprising a polyvinyl chloride film having an adhesive layer formed from a mixture of a natural rubber latex and a dispersion of an aromatic modified hydrocarbon resin.

Adhesive tape for wrapping purposes

Growing community of inventors

Seevetal, Germany

Bernhard Müssig