acquired the American, Pennwalt Corporation and along with M&T Chemicals and Atochem Inc formed Atochem North America Inc. Pennwalt can trace its roots to...

1960s, it received a shortened name of mesylic acid. In 1967, the Pennwalt Corporation (USA) developed a different process for dimethylsulfide (as a water-based...

had freely dumped there for over a decade. The worst polluter was Pennwalt Corporation. MARENA could not afford, however, to build a sewage treatment plant...

Strasenburgh Prescription Products, a subsidiary of the Philadelphia-based Pennwalt Corporation, for exporting amphetamine tablets to its Mexican subsidiary, Laboratorios...

Canadian chemist Saul Winstein. In 1954, he began working for the Pennwalt Corporation in its research division, where he examined rocket propellants and...

in Europe and in Latin America, to expand operations. 1965–1982 Pennwalt Corporation Held a number of positions of increasing responsibility, as International...

shore had been dumping effluent for an extended period of time. Pennwalt Chemical Corporation was found to be the worst polluter. Nicaragua's economic situation...

new facilities on the property as well. In 1963, Pennsalt (later renamed Pennwalt) built a new research center in the King of Prussia area, and moved out...

including Monsanto, Ciba, Montrose Chemical Company, Pennwalt, and Velsicol Chemical Corporation. Production peaked in 1963 at 82,000 tonnes per year...

building was originally leased to the Pennsalt Chemicals Corporation, later renamed Pennwalt, in a 99-year ground lease to help finance construction of...