POLYTETRAFLUOROETHYLENE AQUEOUS DISPERSION

To provide a PTFE aqueous dispersion having low viscosity at high temperature.SOLUTION: A PTFE aqueous dispersion contains PTFE and a nonionic surfactant, has a PTFE solid concentration of 50 to 70 mass%, is substantially free from a fluorine-containing surfactant, and has a viscosity at 55°C of 50...

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Bibliographische Detailangaben
Hauptverfasser: YAMABE TAKUYA, YAMANAKA HIROSHI, YAMAMOTO EMI, TAIRA TAKAHIRO, FUJIMOTO YOHEI, KATO TAKETO, SODA YOSHIHIRO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a PTFE aqueous dispersion having low viscosity at high temperature.SOLUTION: A PTFE aqueous dispersion contains PTFE and a nonionic surfactant, has a PTFE solid concentration of 50 to 70 mass%, is substantially free from a fluorine-containing surfactant, and has a viscosity at 55°C of 50 mPa s or lower.SELECTED DRAWING: None 【課題】高温での粘度が低いPTFE水性分散液を提供する。【解決手段】PTFE、及び、非イオン性界面活性剤を含み、PTFEの固形分濃度が50~70質量%であり、含フッ素界面活性剤を実質的に含まず、55℃における粘度が50mPa・s以下であることを特徴とするPTFE水性分散液である。【選択図】なし