Acoustical composite headliner

US6204209A · kind A · utility

Assignee

• Johnson Controls Technology Company · US

Inventors

• Harry J. Rozek · Athens, US
• Dennis Beard · Holland, US
• Marie-Christine Knorr · Herrlisheim, FR
• Christoph Jung · Munich, DE

Key dates

• Filing date: Apr 10, 1998
• Grant date: Mar 20, 2001
• Expiry date: Apr 10, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/652
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A thermoformed contoured three-dimensional laminated structure having improved sound absorbing characteristics and which can be formed with shorter mold cycle times includes a porous thermoformable fibrous batt layer and a rigid foam layer. The laminated articles are suitable for use as decorative sound absorbing panels for automotive applications, and are well suited for use as vehicle headliners.