Color print advertisement for Hercocel E, an ethyl cellulose molding powder manufactured and sold by the Hercules Powder Company. The advertisement shows a man in a coat using a telephone handset, with an image of an airplane in the background. The text identifies the handset as a piece of equipment used by the United States Army Signal Corps. The text also describes the qualities of plastics made with Hercocel E, and notes that "the present supply of Hercocel E available for non-defense needs has been sharply curtailed." This advertisement appeared in Modern Plastics, Plastics World, Plastics Industry, Materials & Methods, Machine Design, and Product Engineering.
Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules Powder Company (later Hercules Inc.) initially specialized in the manufacture of explosives and smokeless powders and subsequently diversified its business to encompass a variety of industrial products, including pine and paper chemicals, synthetics, pigments, polymers, and cellulose.
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Hercules Incorporated. “Hercocel E Answers a Call for Ethyl.” 1951 Hercules Advertisements, 1951. Records of Hercules Incorporated, Volume 1951. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/66cudhz.
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