General view of several rows of Plexiglas panels positioned on racks. Per notations accompanying the photograph, the panels are set up for an outdoor exposure test designed to demonstrate the weathering capabilities of Plexiglas.
The Rohm and Haas Company was founded in 1907 in Esslingen, Germany through the partnership of German chemist Otto Röhm and German businessman Otto Haas. In 1933, Röhm's experiments with the polymerization of methyl methacrylate led to the creation of a clear, solid plastic sheet, which he trademarked Plexiglas. During World War II, the demand for Plexiglas, which both Allied and Axis forces used for submarine periscopes and aircraft windshields, canopies, and gun turrets, helped transform Rohm and Haas into a major chemical firm.
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Rohm and Haas Company. “Outdoor Exposure Test for Plexiglas Panels,” February 1948. Rohm & Haas Company Archives, Box Photos 18, Folder 6. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/1544bp92x.
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