Process for manufacturing a sound insulating structure

US5334338A · kind A · utility

Assignee

• Dr. Alois Stankiewicz GmbH · DE

Inventors

• Christoph Kittel · Bad Doberan, DE
• Hans Walendy · Wathlingen, DE
• Gerhard Burak · Celle, DE
• Manfred Hoffmann · Würzburg, DE

Key dates

• Filing date: Jun 8, 1992
• Grant date: Aug 2, 1994
• Expiry date: Jun 8, 2012

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E04B2001/8461
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A sound insulating structure is provided which is made by foam-backing a carpet in a single operation and which includes a consolidated layer with few or no cells followed by a cellular soft elastic layer. To this end structured materials such as fleece and/or cut foam into which foaming takes place in order to form the consolidated layer, are provided on the back of the carpet or of a foam-proof covering thereon.