Chemical additives for fracturing fluid for use in oil and gas wells; Chemical additives for oil well drilling fluids; Chemical coatings used in the manufacture of printed circuit boards; Chemical fracturing fluids for use in the oil and gas industry; Chemical additives for fracturing fluid for use in oil and gas wells; Chemicals and unprocessed plastics, namely, polymers for electronic materials; Chemicals for use in the field of oil exploration and production; Chemicals for use in the proce...