General view of Dow employee Lou Friederick presenting on the chemical processes underlying the production of plasticizers, such as saran film, at the Dow Chemical Company. Friederick is seen using a pointer to reference a diagram depicting the use of heat and catalysts to loosen double bonds between carbons and subsequently allow links to form between hydrogen, carbon, and chlorine.
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Dow Chemical Company. “Lou Friederick Presenting on Production of Dow Plasticizers,” circa 1953. Dow Chemical Company Historical Image Collection, Box 10, Folder Plants--Saran Production, 1952 thru 1983. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/x059c842r.
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