초록 ▼

A thermoformable laminate structure with improved acoustical absorption is provided which has a first and a third layer of foamed thermoplastic material and a second layer, intermediate the first and third layers, which is a material having acoustical properties different from the properties of the

A thermoformable laminate structure with improved acoustical absorption is provided which has a first and a third layer of foamed thermoplastic material and a second layer, intermediate the first and third layers, which is a material having acoustical properties different from the properties of the material of the first and third layers. A portion of the surface area of each layer is adhesively bonded to the adjacent layer. A resin impregnated fabric is bonded to the outer surfaces of the first and third layers.

대표청구항 ▼

A thermoformable laminate structure with improved acoustical absorption comprising: a first layer of a foamed thermoplastic material; a third layer of a foamed thermoplastic material; a second layer intermediate said first and third layers, said second layer being a material having acoustical proper

A thermoformable laminate structure with improved acoustical absorption comprising: a first layer of a foamed thermoplastic material; a third layer of a foamed thermoplastic material; a second layer intermediate said first and third layers, said second layer being a material having acoustical properties different from the acoustical properties of the thermoplastic material of said first and third layers; at least a portion of said first and second and said second and third layers being adhesively bonded together; and said first and third layers of thermoplastic material having an outer surface, said outer surface having a resin impregnated fabric bonded thereto. The thermoformable laminate structure of claim 1 wherein said resin impregnated fabric comprises a non-woven fabric impregnated with a synthetic polymer resin.