An object of the present invention is to provide a sound absorbing and insulating material for an automobile excellent in heat resistance, which is eco-friendly and which has remarkably enhanced sound absorption performance, rigidity, and heat resistance than conventional sound absorbing and insulating materials, and a method for manufacturing the same. The sound absorbing and insulating material for an automobile excellent in heat resistance of the present invention comprises: an upper felt layer and a lower felt layer containing low melting point polyethylene terephthalate fibers and regular polyethylene terephthalate fibers; and a sound insulating layer interposed between the upper felt layer and the lower felt layer and containing thermoplastic polyolefin.
본 발명은 친환경적이면서 종래의 흡차음재 보다 흡차음성, 강성 및 내열성이 현저히 향상된 내열성이 우수한 차량용 흡차음재 및 그 제조방법를 제공하기 위한 것이다. 본 발명의 내열성이 우수한 차량용 흡차음재는, 저융점 폴리에틸렌 테레프탈레이트 섬유와 레귤러 폴리에틸렌 테레프탈레이트 섬유를 함유하는 상부펠트층 및 하부펠트층; 상기 상부펠트층과 하부펠트층 사이에 개재되며, 열가소성 폴리오레핀을 함유하는 차음층; 을 포함한다.
Noise absorbent fabric and manufacturing method of the same
내열성이 우수한 차량용 흡차음재 및 그 제조방법
2019-02-08
Patent
Electronic Resource
Korean
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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