Polysilanes; Polyurethanes; Adhesive materials for the building industry; Adhesive materials for the building industry and tiles; Adhesive substances for use in industry; Adhesives and glues for industrial and commercial use; Adhesives and glues for industrial purposes; Adhesives for bookbinding; Adhesives for floor, ceiling and wall tiles; Adhesives for industrial use; Adhesives for use in the manufacture of furniture; Chemicals for industrial purposes; Conductive adhesives for use in indust...