The sheet (16) has a face including a cord (20) extending along a peripheral edge of a layer (22) for fixing the face on a support e.g. sheet metal. A rigid, corrugated frame work (18) is applied to another face (24) of the sheet along the peripheral edge ...

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...

A panel, comprising one layer (12) of a thermoformed plastic material shaped to form cylindrical, parallel-piped, truncated conical or truncated pyramidal resonator cells (14) between 10 and 30 mm deep, has the open side of the cells covered by a plastic f...