STYRON

Class [19]
Non-Metallic Building Material Products

Non-metallic building and construction materials, non-metallic road making materials, and synthetic resinous mortars and cements, all consisting of or containing polystyrene plastics; boards, sheets, panels, tiles, blocks and shaped pieces, all made wholly or principally of polystyrene plastics and for use in building; portable buildings constructed wholly, or in part, from materials consisting of or containing polystyrene plastics.