Technical Terms & Abbreviations Naphtha Naphtha is a general term for low-boiling hydrocarbon fractions that is a product of crude oil refining or a condensate splitter. It serves as petrochemical feedstock and as a solvent. Olefins Olefins are unsaturated hydrocarbons with at least one carbon-carbon bond. The main olefins include ethylene, propylene, and butadiene. Oleochemicals Oleochemicals are natural chemicals derived from plant fats and animal fats, such as fatty alcohols, methyl ester, and glycerin. O-xylene or Orthoxylene (OX) This aromatic compound with two methyl groups in the 1- and 2-positions of the benzene ring is used to produce phthalic anhydride, feedstock for plasticizers. Polymers Chemicals with molecular weights of 5,000 or more, derived when certain individual monomers come together and link up. Examples are polyethylene, rubber, and cellulose. Polypropylene Polypropylene, a thermoplastic polymer derived from the reaction between propylene and catalysts, is used in containers, textiles, and injected plastics. Polyethylene Terephthalate (PET) PET is made by combining mono ethylene glycol and pure terephthalic acid. PET and mono ethylene glycol serve as feedstock for synthetic fiber, water bottles, audiotapes, adhesive tapes, film, food packaging, and others. Polyols Polyols is an intermediate petrochemical product, used as main feedstock to produce polyurethane. Polystyrene A thermoplastic made from styrene monomer. Polyurethane (PU) PU, a thermoplastic resulting from glycol and diisocyanate condensation, can be stiff, soft, or flexible, depending on the additives used. When blended with rubber, it provides shoe soles, heat insulators, windshield wipers, and others. Polyvinyl Chloride (PVC) PVC is a thermoplastic polymer produced from vinyl chloride monomers (VCM), and consists of unplasticized and plasticized PVC. It is used in water pipes, electric wire conduits, artificial leather, among others. Powder Coating Resins Powder coating resins are 100% solids (not carried in water or solvent) which upon oven-baking forms a protective film that provides superior durability and weathering resistance to the coated object. They are commonly used to coat metals in applications ranging from agricultural and construction equipment, aluminum frames and household electrical appliances. PP Compound A polypropylene with additives added to reinforcing substances to enhance special features. Premix Polyols A mixture of various polyols and additives co-developed with customers to achieve desired properties. Propylene Propylene is an unsaturated hydrocarbon derived from propane, LPG, or naphtha. This feedstock of polypropylene is of three grades: refinery, chemical, and polymer, depending on the proportions of propylene and propane. 348 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2021
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