Acoustics – Sound-modifying means – Sound absorbing panels
Patent
1986-03-21
1988-04-05
Fuller, Benjamin R.
Acoustics
Sound-modifying means
Sound absorbing panels
181204, 181291, 181294, E04B 182
Patent
active
047352841
ABSTRACT:
The invention relates to an adhesive insulating system that is non-destructively removable, e.g. for the purpose of repair, for sound insulation of partition walls, particularly in motor vehicles. To overcome the disadvantages associated with the previous systems in mounting and also in repair a layer of material of a highly under-cross-linked polyurethane is now applied between the substrate and the overlying layers. This polyurethane layer has, owing to its under-cross-linking, a great adhesive effect and thus enables the substrate and the insulating layers to be joined in a force-locked manner. The adhesive material layer can be prefabricated or is prepared by spraying on a highly under-cross-linked 2-component mixture of the polyurethane former.
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Gahlau Heinemann
Hoffmann Manfred
Kittel Christoph
Dr. Alois Stankiewicz GmbH
Fuller Benjamin R.
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