Adhesive insulation system

US4735284A · kind A · utility

Assignee

• Dr. Alois Stankiewicz GmbH · DE

Inventors

• Heinemann Gahlau · Celle, DE
• Manfred Hoffmann · Würzburg, DE
• Christoph Kittel · Bad Doberan, DE

Key dates

• Filing date: Mar 21, 1986
• Grant date: Apr 5, 1988
• Expiry date: Mar 21, 2006

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R13/083
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

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.