Acoustical sound proofing materials and methods of making...

Details Acoustical sound proofing materials and methods of making... Acoustical sound proofing materials and methods of making...

B - Operations, Transporting

32

B

B32B 13/02 (2006.01) B32B 7/12 (2006.01) E04B 1/94 (2006.01) E06B 5/16 (2006.01)

Patent

CA 2741940

A laminated structure comprises a first external layer and a second external layer; an internal layer disposed between the first and the second external layers; a first adhesive layer disposed between the first external layer and the internal layer, wherein the first adhesive layer is patterned to cover only a first portion of the internal layer; and a second adhesive layer disposed between the second external layer and the internal layer, wherein the second adhesive layer is patterned to cover only a second portion of the internal layer on a side opposite the first adhesive layer, and wherein the first portion is different than the second portion.

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