3m Innovative Properties Company

Cww-gerko Akustik Gmbh

Georg Eichhorn

Thomas P Hanschen

Ronald W Gerdes

Jonathan H Alexander

Ralf Dopheide

Taewook Yoo

Thomas Herdtie

Christoph Friest

Meinolf Seifert

A multilayer damping material for damping a vibrating surface comprising: at least one constraining layer; at least one dissipating layer; and at least one kinetic spacer layer comprising multiple spacer elements. The kinetic spacer layer is arranged between the constraining layer and the vibrating surface, when used for damping the vibrating surface. Each spacer element has opposite ends. At least one end of each of the multiple spacer elements is embedded in, bonded to, in contact with, or in close proximity to the dissipating layer, such that energy is dissipated within the multilayer damping material, through movement of the at least one end of each of the multiple spacer elements.

Multilayer damping material

A multilayer molded element () is molded to an appropriate shape which conforms to an underside of floor areas or wheel housings of a vehicle. The multilayer structure includes a non-woven, resilient layer () which functions as a shock absorber and spring to absorb impact and damp noise. The resilient layer is disposed between cover layers (). Optionally, fabric layers () are bonded to outsides of the cover layers.

Multilayer molded element

Growing community of inventors

Herford, Germany

Georg Eichhorn