17 Rubber, raw or semi-worked; gutta-percha; gum, raw or semi-worked; plastic material in extruded form for use in production; packing, stopping and insulating materials; flexible tubes, not of metal; insulating materials for insulating against sound, cold, heat, impact, vibration, shock, moisture and environmentally hazardous substances, in particular for vehicle and machine construction and for the building sector, conveyor installations, public roads, noisy environments, and sports and leisure facilities; the aforesaid insulating products, made using elastomers and thermoplastic elastomers, in particular based on natural and synthetic rubber, and made using of thermoplastics, thermosetting plastics, plastisols, foams of plastic and of metal, bitumen and substances similar to bitumen, non-woven fabrics, or of mineral, plastic and natural fibres and fabrics made with the aforesaid fibres; the aforesaid materials containing or not containing fillers and containing or not containing structural parts of metal; insulating panels for insulating against sound, cold, heat, impact, vibration, shock, moisture, and environmentally hazardous substances; insulating foils for insulating against sound, cold, heat, impact, vibration, shock, moisture, and environmentally hazardous substances; insulating mats and insulating coatings to protect against noise and heat transmission; shaped plastic parts in a variety of forms made using thermoplastic elastomers, for insulating vehicles and machines, in particular against transmission of sound; sealing and insulating materials for motor vehicles for sound deadening and sealing out sound; loading area lining with integrated sound insulation, in particular for vehicles; sandwich systems in the nature of insulating materials, in particular made using elastomers and thermoplastic elastomers, in particular with added filler and in combination with materials of all kinds; engine-mounted encapsulation for insulation, namely, insulating materials for engine mounts, in particular for vehicle construction, and bodywork-mounted encapsulation, namely, insulating materials for bodyworks for motor vehicles; sound absorbing materials, namely, sound absorbing floor underlayment, sound absorbers, and diffusers, in particular for vehicle and machine construction and against traffic noise; shielding capsules and shielding elements of the aforesaid kind, with or without a sound-absorbing lining and tubular components, namely, insulating materials, in particular with a sound-absorbing lining, for use in vehicle construction and mechanical engineering; sound-absorbing insulating systems, in particular based on shaped films