Viscoelastic damping foam having an adhesive surface

US6420447B1 · kind B1 · utility

Assignee

• Stankiewicz GmbH · DE

Inventors

• Christoph Kittel · Bad Doberan, DE
• Gerhard Burak · Celle, DE
• Carsten Kliwer · Bad Doberan, DE
• Cornelia Peters · Wolthausen, DE

Key dates

• Filing date: Jun 22, 1994
• Grant date: Jul 16, 2002
• Expiry date: Jun 22, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S521/914
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a viscoelastic damping foam with an adhesive surface for adhesion coupling to vibrating surfaces, for solid-borne sound absorption. The viscoelastic damping foam is obtained through the stoichiometric reaction of a polyisocyanate with at least two polyols of the polyether type which are incompatible with one another.