Adhesive insulation system

US4825974A · kind A · utility

Assignee

• Dr. Alois Stankiewicz GmbH · DE

Inventors

• Manfred Hoffmann · Würzburg, DE
• Johann Tonhauser · Miesbach, DE
• Dieter Karg · Niederroth, DE

Key dates

• Filing date: Jul 17, 1987
• Grant date: May 2, 1989
• Expiry date: Jul 17, 2007

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 (3) that is non-destructively removable, e.g. for repair purposes, for sound insulation of partition walls (1), particularly in motor vehicles. Between the foundation and the overlying layers of the insulating system (3) a layer (2) of a highly under-cross-linked polyurethane material or a special bitumen mixture is applied that has a strong adhesive effect and thus enables a force-locked connection to be made between the foundation (1) and the insulating system (3). To ensure that the desired flexibility is obtained together with unchanged acoustic effectiveness even when a carpet (8) is laid on the insulating system (3) or its heavy layer (6), according to the invention a decoupler (7) of soft elastic, predominantly open-pored material is arranged between the carpet (8) and the heavy layer (6). Surprisingly, along with the desired flexibility, the acoustic effect is further improved.