Tesa Se

Michael Egger

Bernd Lühmann

Bernhard Müssig

Thilo Dollase

Andreas Junghans

Gero Maatz

Nicolai Böhm

Andreas Westphal

Tobias Winkler

Alexander Herrmann

Jessika Gargiulo

Yeliz Tepe

Gregor Osterwinter

Markus Kienzle

CaiRong Lim

Philip Schultz

Mark Hänle

Falk Hunger

Beatrice Salert

Aranzazu Escudero Vallejo

Klaus Lurk

Alexander Bamberg

Nikolay Belov

Beatrice Von Dehn

Mark HÄNLE

René Wambach

Multi-layer composites and methods of using the composites as a membrane for electroacoustic transducers. The composites and methods comprise at least one first and one second outer layer, wherein at least one of the cover layers being made from a polypropylene sulfide-plastic having a halogen content not exceeding 550 ppm.

Multi-layer composite for acoustic membranes

The invention relates to an adhesive strip redetachable without residue or destruction by extensive stretching substantially in the bond plane, comprising at least one layer of adhesive which is foamed with microballoons, and at least one carrier B.

Redetachable adhesive strip

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

Growing community of inventors

Hamburg, Germany

Michael Egger