ACOUSTIC INSULATOR MAT WITH LIQUID APPLIED SPRAYABLE COATING AND METHOD FOR MAKING THE SAME

摘要

The disclosed acoustic insulator mat includes a first absorber layer made of a non-woven fibrous material. The non-woven fibrous material comprises a mesh of intertwined fibers that defines a plurality of cavities. The first absorber layer has a first side and a second side. Peripheral cavities are arranged along the second side of the first absorber layer between peripheral fibers. A coating is disposed on the second side of the first absorber layer. The coating is adhered to the peripheral fibers and thus includes a plurality of discontinuities at the peripheral cavities such that the coating provides a partial barrier to noise at the second side of the first absorber layer. The acoustic insulator mat may optionally include a second absorber layer that is retained on the first absorber layer by the coating. A method of manufacturing the acoustic insulator mat is also disclosed.

主权项

1. An acoustic insulator mat comprising:
a first absorber layer made of a non-woven fibrous shoddy material that absorbs noise; said non-woven fibrous shoddy material comprising a mesh of intertwined fibers that defines a plurality of cavities within said first absorber layer; said first absorber layer including a first side and a second side; said mesh of intertwined fibers including peripheral fibers that are arranged along said second side of said first absorber layer; said plurality of cavities in said first absorber layer including peripheral cavities arranged along said second side of said first absorber layer between said peripheral fibers, said peripheral cavities being open to said second side of said first absorber layer; and a coating disposed on said second side of said first absorber layer that is adhered to said peripheral fibers of said first absorber layer and that includes a plurality of discontinuities at said peripheral cavities such that said coating provides a partial barrier to noise at said second side of said first absorber layer.