- Wallace and Tiernan, Inc. merged into Pennwalt Corporation.
- Viking Chemical Company began operation of the epoxidized resin plant in Blooming Prairie, MN.
- The Rohm and Haas Company began manufacturing Plexiglas® acrylic resins in Louisville,KY.
- Pennsalt acquired R.H. Miller Company, Homer, NY a leading supplier of wire drawing lubricants.
- Two Pennsalt specialty resin units located within the Equistar Chemicals complex in Channelview, TX began production of SMA® resins.
- Pennsalt completed plant for production of Kynar® polyvinylide fluoride resin at Calvert City, KY.
- Racon, Inc. began refrigerant manufacturing operations in Wichita, KS.
- Metals and Thermit changed its name to M and T Chemicals.
- Production facilities for organic sulfur chemicals expanded at Pennsalt's Houston,TX plant.
- Pennsalt's technical service laboratories were transferred to King of Prussia, PA with completion of the first unit of a new $9 million technology center.
- Pennsalt entered the plastics field with development of Kynar® polyvinylidene fluoride resin.
- Pennsalt constructed a plant in Portland, OR for production of ammonium perchlorate for solid propellant used in missiles. The company also increased hydrofluoric acid facilities in Calvert City, KY by 50% and began its industrial lubricants operations in Oakville, Ontario.
- Metals and Thermit Company opened a plant in Carrollton, KY producing organotin chemicals.
- Pennsylvania Salt Manufacturing Company changed its name to Pennsalt Chemicals Corporation. The Sodium Chlorate plant in Portland, OR is expanded. Metals and Thermit Company opened its zircon milling plant in Andrews, SC.
- Pennsylvania Salt entered the refrigeration and aerosol propellant fields. Two new Forane® chlorofluorocarbon plants were constructed in Calvert City, KY.
- Pennsylvania Salt acquired the Index Chemical Company of Houston, the first U.S. company to produce ethyl and methyl mercaptans, as well as other synthetic organic sulfur compounds for commercial sales.
- A plant in Memphis, TN began manufacturing hydrogen peroxide, with a capacity of 14 million pounds per year.
- Pennsylvania Salt's Geneseo, NY facility, currently manufacturing a wide range of organic peroxides, began operations in the Livingston County area of Western New York.
- Pennsylvania Salt began operations in the Houston, TX area.