Isophthalic Acid, Purified - PIA

Isophthalic acid is an organic compound. This colorless solid is an isomer of phthalic acid and terephthalic acid. The main industrial uses of purified isophthalic acid are for the production of polyethylene terephthalate (PET) resin and for the production of unsaturated polyester resin (UPR) and other types of coating resins. An aromatic dicarboxylic acid synthesized from meta-xylene, is used to produce aramids, polyesters, highly performance electroinsulating enamel and alkyd resin without oil. The largest use of purified isophthalic acid (PIA) is an intermediate in the production of unsaturated polyester resins, followed by polyester and alkyd resins (mainly for surface coatings) and inks, reinforced plastics and packaging applications.