Sound-absorbing materials for acoustic absorption; soundproofing materials; acrylic resins, semi-processed; rubber, gutta-percha, gum, mica and goods made from these, not included in other classes; plastics in extruded form for use in manufacture; sealing, gasket and insulation materials, including thermal, acoustic and fire-resistant insulation materials; loose mineral wool, granulates and fibers of mineral wool, boards of bonded mineral wool, trays, blankets, plaster and felt of mineral woo...