Patent ID: 8418806
Filing Date: 2013-04-16
Classification: B32B,B60R,G10K

Abstract:
1. A layered acoustical system for sound attenuation in a vehicle comprising: an external decorative layer; a moldable fiber backer including a first side and a second side, the first side of the moldable fiber backer being adhesively adhered to a back side of the external decorative layer, the moldable fiber backer further including an engineered fiber blend including one or more types of thermoplastic fibers, the moldable fiber backer having a first density; a moldable lofted sound absorber and vibration decoupling layer including a top side and a bottom side and being made from the same or another engineered fiber blend including one or more types of thermoplastic fibers, the moldable lofted sound absorber and vibration decoupling layer having a second density that is less than the first density of the moldable backer, the top side of the moldable lofted sound absorber and vibration decoupling layer being adhesively adhered to the second side of the moldable fiber backer; and an intermediate layer embedded in and adhered to a location within the moldable lofted sound absorber and vibration decoupling layer to achieve a balance point between transmission loss and sound absorption.