A sound-absorbing structure body according to the present invention comprises a ridge-groove board (11) formed with a large number of ridges and grooves, a closing board (15) joined to the ridge-groove board so as to close one side of the ridge-groove boar...

A bumper absorber for protecting pedestrians (20) is formed into a W-shaped cross-sectional configuration, as taken along a direction which is orthogonal to a longitudinal direction of the bumper absorber. The W-shaped cross sectional configuration has por...

The vehicle conduit (1), to carry cables and the like, is fitted with a sound absorber (2) of a nonwoven fiber fabric and/or porous material, as an acoustic damper. The material is a flat section, bent into a number of folds (7-12), forming a packet which ...

The insulating structure comprises a plurality of corrugated sheet metal layers (10) which are superimposed on and fixed firmly to each other. Each corrugated sheet metal layer (10) is produced from aluminium and has a series of rectilinear ridges (12) and...

The insulation panel comprising a layer of a dense thermoplastic material and a layer of felt or foam is attached to a support, e.g. a motor vehicle bulkhead, by fastening(s) with sockets to receive anchoring fixings projecting from the support. The fasten...

A vehicle body panel structure comprises an outer panel, an inner panel facing the outer panel, and a trim of a cabin interior. In the vehicle body panel structure, at least one surface of a back surface of the outer panel, both surfaces of the inner panel...

The invention provides a thermally expandable material comprising a foam composition containing: 100 parts by weight of (a) a crosslinkable polymer material; and 5 to 300 parts by weight of (b) a crystalline thermoplastic resin having oxygen in its molecul...

The soundproofing panel, incorporating a layer of a thermoplastic material and designed to be fitted between first (4) and second (5) rigid components, has at least one fixing boss (6) which is incorporated in the thermoplastic layer. The fixing boss has a...

Motor vehicle sealing and insulating panel comprises one of at least one layer of a thermoplastic material (16) , with a layer or bead of adhesive (14) on one side for fixing to a support (10). Adjacent to the adhesive layer or bead the thermoplastic mater...