1946

Scientific Design Company Incorporated (SD) founded as a Process Development and engineering construction company by Dr. Ralph Landau.

1950

Scientific Design developed and commercialized key Petrochemical Technologies at NYC location: Bromine assisted air oxidation of p-xylene to terephthalic acid (main ingredient of polyester fibers) KA Oil Caprolactum (Nylon) Maleic Anhydride Phthalic Anhydride.

1957

Scientific Design began manufacturing proprietary Oxidation Catalyst at NJ location at USA Headquarters and manufacturing site

1960

Scientific Design developed and commercialized Ethylene Oxide Technology.

1961

Scientific Design developed the first Ethylene Oxide/Ethylene Glycol plant technology.

1963

Scientific Design became a subsidiary of Halcon International Company (HIC).

1967

Halcon International Company, Inc. (HIC) partnered with Atlantic Richfield Co. (Arco) to form Oxirane, to produce propylene oxide, styrene, and tert-Butyl alcohol.

1968

Halcon International Company, Inc. (HIC)/Scientific Design Group discovered high yield direct Ethylene Oxide process.

1976

Halcon International Company, Inc. (HIC)/Scientific Design became the first company to License EO/EG Plant in China