The present invention provides: a sound absorbing and insulation material for an automobile which is environmentally friendly and has drastically improved sound absorbing and insulation properties, rigidity, and heat resistance compared to those of conventional sound absorbing and insulation materials; and a method for manufacturing the same. The sound absorbing and insulation material for an automobile having excellent heat resistance comprises: an upper felt layer and a lower felt layer containing low melting point polyethylene terephthalate fiber and regular polyethylene terephthalate fiber; and a sound insulation 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 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.
PET PET Noise absorbent fabric using PET felt and manufacturing method of the same
PET펠트를 이용한 자동차용 흡차음재 및 그 제조방법
2021-08-17
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 / D04H Herstellen von flächigem Textilgut, z.B. aus Fasern oder fadenförmigem Material , MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES |
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