Material for sound-absorbent and heat-insulating lining of an automotive engine compartment

摘要

PCT No. PCT/EP97/05607 Sec. 371 Date Jun. 17, 1999 Sec. 102(e) Date Jun. 17, 1999 PCT Filed Oct. 10, 1997 PCT Pub. No. WO98/16676 PCT Pub. Date Apr. 23, 1998The invention relates to a moulded part which can be used as a sound absorbent and heat insulating lining for an automotive engine compartment. Said moulded article consists of a carbon-fiber heat insulating layer (1) facing the engine compartment, a rear thermoplastic-fiber supporting layer (2) and a sound absorbent insert (3). Heat insulating layer (1) and supporting layer (2) are designed as a non-woven knitted fabric comprising a stitched layer which binds all fibers and is made of flatly disposed stitches, and a looped protruding pile layer. Stitched layers (4,4') of heat insulating layer (1) facing engine compartment, and rear supporting layer (2) define the outer surface of the material. Supporting layer (2) is moulded by hot pressing to form a dimensionally stable moulded part.