Exposure racks at Rohm and Haas home office
- Circa 1933-Jun
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Small JPG1200 x 972px — 196 KBLarge JPG2880 x 2332px — 918 KBFull-sized JPG4197 x 3398px — 1.7 MBOriginal fileTIFF — 4197 x 3398px — 40.9 MBTwo views of exposure racks designed to test the weathering capabilities of varnishes and other products manufactured by the Rohm and Haas Company. The racks are positioned on the roof of the company's home office building located at West Washington Square in Philadelphia.
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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Cite as
Rohm and Haas Company. “Exposure Racks at Rohm and Haas Home Office,” circa 1933. Rohm & Haas Company Archives, Box Photos 2, Folder 1. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/29omziy.
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