FILLING AGENT USEFUL IN THE MANUFACTURE OF LEATHER FROM HIDES AND SKINS CONSISTING OF A LIGNIN PITCH WHICH IS DERIVED FROM THE SULFITE PROCESS OF MAKING WOOD PULP

CHEMICAL COMPOUND USEFUL AS AN EMULSIFYING AND DISPERSING AGENT IN THE MANUFACTURE OF ROAD OILS, PORTLAND CEMENT, AND ORE FLOTATION, AND AS AN AGENT EMPLOYED IN MINERAL SEPARATION PROCESSES IN CONNECTION WITH METAL REFINING

ADHESIVE EMPLOYED AS A BINDER OR BONDING AGENT IN THE MANUFACTURE OF CORES, CERAMIC PRODUCTS, BRIQUETS, AND OTHER SHAPES OR MASSES FROM FINELY DIVIDED MATERIAL SUCH AS SAND, CLAY, EARTHS, ORES, AND FUEL