American Industrial Hygiene Association Journal ISSN: 0002-8894 (Print) (Online) Journal homepage: https://www.tandfonline.com/loi/aiha20 The Toxicology of the Pyrolysis Products of Polychlorotrifluoroethylene H.

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ELECTRONICS Next-Generation Nanoporous PTFE Membrane Hirokazu KATAYAMA*, Fumihiro HAYASHI, Naoki SHIMBARA, Atsushi UNO, Yoshimasa SUZUKI and Yasuhiro OKUDA ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Porous polytetrafluoroethylene (PTFE) was invented by Sumitomo Electric Industries, Ltd. using its stretching technology, and has been widely used for POREFLON microfiltration membrane or other products.