chemical agents for removal of unwanted contaminants from non-liquid gas streams; catalysts for the manufacture of flexible foams, rigid foams, coatings, elastomers, and plastics; heat transfer fluids, and metal working fluids, containing a glycol, such as ethylene glycol and propylene glycol; polyether amines, for use in curing and hardening agents for epoxy resins and adhesives, and in the manufacture of flexible foams, rigid foams, coatings, elastomers, and plastics;[ plastic materials, namely, [ polystyrene and ] expandable polystyrene for use in the manufacture of a wide variety of products; manufacturing chemicals, namely, [ styrene monomer for ] polymerization to form styrene polymers; polystyrene and expandable polystyrene and alloys and compounded products thereof for use in manufacturing finished products; and styrene monomer for polymerization to form polystyrene and other polymers containing styrene; polypropylene, homopolymers and alloys and compounded products thereof, copolymers and alloys and compounded products thereof, all for use in the manufacture of a wide variety of products]