17 Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes, namely, natural rubber, nitrile rubber, packing padding of rubber for shipping containers, polysulfide rubber, reclaimed rubber, rings of rubber for use as pipe connection seals, raw or semi-worked rubber, rubber bags for merchandise packaging in the nature of envelopes or pouches, rubber bands for commercial and industrial uses, rubber bars and rods, rubber bottle stoppers, rubber bumpers for loading docks, rubber chips or granules for use as a playground ground cover, rubber clack valves for industrial use, rubber cords and laces, rubber derivatives, rubber for use in the manufacture of tires, cable, paper, rubber hose for use in connection with welding, rubber lids and caps for industrial packaging containers, rubber packing for shipping containers, rubber padding for shipping containers, rubber sealant for caulking and adhesive purposes, rubber sheets, rubber shock absorbers for industrial machinery, rubber sleeves for protecting parts of machinery, rubber stoppers for industrial packaging containers, rubber thread not for textile use, rubber thread and covered rubber yarn not for textile use, rubber tubes and pipes, shock absorbing rubber buffers for industrial machinery, shock buffers of rubber for industrial machinery, silicone rubber, sleeves of rubber for protecting parts of machinery, stuffing of rubber, styrene-butadiene rubber, synthetic rubber, synthetic rubber for use in the manufacture of tires, cable, paper, valves of rubber or vulcanized fiber not including machine elements, and washers of rubber or vulcanized fiber; and plastics in the form of powders, pastes, liquids, fibres, capillarities, emulsions, pellets, granules, films, sheets, plates, blocks, rods and pipes including flexible pipes not of metal, all for further industrial and agricultural use or manufacture; electrical, thermal and acoustic insulating materials for buildings and construction; padding materials of rubber and plastics for packing use and/or for tightly fixing purposes; floating anti-pollution barriers, namely, barrier curtains in the nature of floating baffles or booms for the containment of pollutants