Patent ID: 9715872
Date: 2017-07-25
CPC Classifications: B32B,B60R,G10K

Claim:
1. A gradient density sound attenuating composite material, comprising: an organic man-made fiber; an inorganic man-made fiber; a thermosetting binder; cellulose fibers; said organic man-made fiber, said inorganic man-made fiber, said binder and said cellulose fibers defining a homogeneous sound attenuating material; a mixture of granulated EVA and recycled particulate, wherein said recycled particulate includes at least one of polyester, cellulose, fiberglass, or thermosetting binder, disposed on said homogenous sound attenuating material; and, one of a face cloth, a foil or both disposed on said EVA mixture opposite said homogeneous sound attenuating material.