Sound Proofing material with improved damping and structural integrity

摘要: Panels for use in building construction (partitions, walls, ceilings, floors or doors) which exhibit improved acoustical sound proofing multiple specific frequency ranges and also present structural integrity, are provided. The performance is achieved through the of one more layers glue such that at least layer includes a viscoelastic material first pattern adhesive second, non-overlapping pattern. may have varied shear moduli functions as energy dissipating layer. In some embodiments, constraining separating be included. formed gypsum, cement, metal, cellulose, wood, petroleum-based products vinyl, plastic, rubber. standard wallboard, typically comprises external surfaces laminated panel.