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특허 상세정보

Thermoformable laminate structure with improved acoustical absorption

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B32B-005/32   
미국특허분류(USC) 428/286 ; 156/77 ; 156/78 ; 428/288
출원번호 US-0553594 (1983-11-21)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 52  인용 특허 : 4
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 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.

대표
청구항

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 thermo...

이 특허를 인용한 특허 피인용횟수: 52

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