PQ Corporation, acquired by JPMorgan Partners, is a producer of silicate, zeolite and other performance materials that serve the detergent, pulp and paper, chemical, petroleum, catalyst, water treatment, construction and beverage markets. The company is a global enterprise that operates in nearly 20 countries on five continents. In addition to PQ s chemical businesses, Potters Industries is a wholly-owned subsidiary that is a producer of engineered glass materials that serve the highway safety, polymer additive, metal finishing and conductive particle markets. PQ Corporation was founded in 1831 and was known as the Philadelphia Quartz Company from 1864-1978. The organization is based in Berwyn, Pa.