3 results for “Owens-Corning Fiberglas”
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Company document · JM Knowledge Chronology · August 22, 1956
H. M. Jackson to Dr. R. E. Joyner of Carbide and Carbon Chemicals on Superex and Thermobestos Insulation (1956)
…particles. That letter is not in this file, which holds only the first letter, the one saying Thermobestos contained expanded perlite. Related documents Arthur J. Vorwald to Owens-Illinois on Kaylo Causing Asbestosis in Animals (1948)
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Company document · JM Knowledge Chronology · May 14, 1952
H. M. Jackson to All Plant Managers on Caution Labels for Celite (1952)
…Diatomaceous Earth." It opens: "Recent research and medical studies indicate that there is a potential health hazard in the use of Diatomaceous Earth under conditions of prolonged exposure at high concentrations." Bagged products from Lompoc were…
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Company document · JM Knowledge Chronology · January 24, 1958
Dr. Kenneth Smith and the J-M Research Center on Free Silica in Finished Products (1958–1959)
…at the Zelienople, Pennsylvania, brick plant were "converted in the ovens to crystobalite," which "would affect the employees who saw and package the brick." The study took over a year. In July 1959 Hugh M. Jackson…