Document oZpxQXxnJ1QXN4aVBmMpZMZR

Bearing material & sliding material Application Number: Transportation (annex E.2.10), Electronics and semiconductors (annex E.2.11), Energy sector (annex E2.12) Application Name: Bearing material and sliding material Materials used in these products are PTFE (CAS No. 9002-84-0) alone, or inorganic and organic materials blended as a filler. *6) Subject to use: Bearings and sliding members *4), *5) Main fillers: There are glass fibers, carbon/graphite, carbon fibers, molybdenum disulfide, bronze, etc. *2), *3), *6) Chemicals used: Chemicals, oilless *2), *7) Use conditions: High temperature, high pressure, high speed. *2), *3) Essential conditions: To have a low friction coefficient. *1) Creep resistance, wear resistance, friction coefficient stability, seizure resistance, *2), *3) non-adhesiveness, and self-lubricity *2) Reference materials *1) Sumitomo Chemical Co., Ltd., Super Engineering Plastic "Sliding properties of Sumiploy" 1 *2) Valqua, Ltd., Research Department, Rubber Laboratory, Takaharu IKEDA "High-performance sliding material VALFLON sliding material series with filler" *3) Mitsubishi Cable Industries Review 101, April, 2004 "Influence of filler on friction and wear behavior of tetrafluoroethylene resin" *4) IIDA Co., Ltd. "Possibility of non-grease resin bearings and resin gears by resin cutting" *5) SAINT-GOBAIN "https://www.bearings.saintgobain.com/ja/applications/norglide-ptfe-bearings-seat-frames" *6) Valqua, Ltd., Valqua Technology News Spring 2017 "Types and Application of Filler-added PTFE Materials" *7) Toray Industries, Inc. "https://www.toray.jp/mf/product/toyoflon/use.html" A material that satisfies all of the above-described specification conditions is PTFE. Other resins have been exemplified as other materials for bearing and sliding materials, but no substitutes for the bearing and sliding materials specifically shown in the following fields have been found. 2 <Comparison in chemical resistance between PTFE alone and other resins> Reference materials *13) National Research and Development Agency, the Japan Science and Technology Agency, Masahiro NATSUME, School of Agricultural Science, Nagoya University "Chemical and solvent resistance of plastic experimental instruments") 3 *2) Valqua, Ltd., Research Department, Rubber Laboratory, Takaharu IKEDA "High-performance sliding material VALFLON sliding material series with filler" (9A2 is PTFE+filler.) 4 *2) Valqua, Ltd., Research Department, Rubber Laboratory, Takaharu IKEDA "High-performance sliding material VALFLON sliding material series with filler" 5 *2) Valqua, Ltd., Research Department, Rubber Laboratory, Takaharu IKEDA "High-performance sliding material VALFLON sliding material series with filler" 6 *9) Toshiba Corporation, Toshiba Review Vol. 69 No. 12 (2014) "Water-lubricated bearing material with excellent wear resistance and low friction" One of the reasons why PTFE-containing sliding materials are selected in various fields is that they have low frictional resistance and high elongation, which reduces the risk of damage during installation, vibration, and impact. In addition, they are considered to have great advantages such as absence of unpleasant "squeaking", "creaking", and the like. *2) In this manner, if it becomes not possible for PTFE to be used, this will have a great impact on the automotive field, the electronic and semiconductor fields, and the energy field. For example, PTFE-containing bearing and sliding materials are used as follows. The materials are used in car power steering, car air conditioners, and the like. Toyota Motor Corporation, the 7 world's number one seller, will have sales of 371,542,980,000 yen in 2022, and there will be a great economic impact on its 375,235 employees. *8) The materials are used as water-lubricated bearing materials for water turbine bearings in hydroelectric power generation. *9) In Norway, the largest hydroelectric country in Europe, 93% of domestic electricity comes from hydroelectric power generation (2019), which supports various industries. In addition, the GDP in 2021 will be 444.5 billion dollars, and there will be a great impact on the economy and livelihoods. *10) In the semiconductor field, the materials are used in highpurity solvent treatment systems to keep components free from corrosion and impurities. *11) The global semiconductor shipment value in 2021 will be 9,499.9 billion yen, and there will be a great impact on the global economy and information communication. *12) Accordingly, it is essential that PTFE is used, and this enables environmental protection and economic sustainability. Based on the above, permanent exemption for these uses is proposed. Reference materials 8 *8) Toyota Motor Corporation, Summary of Financial Results ended in March 2023 (April 1, 2022 to March 31, 2023) *9) Toshiba Corporation, Toshiba Review Vol. 69 No. 12 (2014) "Water-lubricated bearing material with excellent wear resistance and low friction" *10) Ministry of Foreign Affairs of Japan, Basic Data of the Kingdom of Norway *11) CHEMOURS.COM "TeflonTM Fluororesin in Semiconductor Manufacturing" *12) Japan Ministry of Internal Affairs and Communications, Policy White Paper, 2022 Edition, Summary of Current Status Report on Information Communication 9