Composite headliner with improved acoustic performance

US8016072B2 · kind B2 · utility

Assignee

• Johnson Controls Technology Company · US

Inventors

• Peter Oosting · Grand Rapids, US
• Kevin J. Blauwkamp · Zeeland, US
• Kevin A. Tomasek · Zeeland, US
• Brad M. Everest · Holland, US
• Jeffrey A. Deyoung · Parker, US
• Brent D. Rockafellow · Holland, US
• Jack L. Johnson · Irvine, US
• Benoit Pivert · Bischwiller, FR

Key dates

• Filing date: Jul 28, 2008
• Grant date: Sep 13, 2011
• Expiry date: Jul 28, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/10
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A composite headliner material allows sound waves originating within a vehicle to penetrate deeply into the headliner where all of a significant portion of their energy is absorbed rather than reflected back into the vehicle. The coverstock sheet is backed by a multilayer material with a foam core coated above and below by a fibrous glass mat impregnated with an adhesive with scrim layers above and below glass mat layers.