POWDER COMPRISING LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE AND USES THEREOF

Powder comprising low molecular weight polytetrafluoroethylene (PTFE) having a melt viscosity of 1 x 102to 7 x 105Pa.s at 380°C, having an average particle size of 1.0-50 µm, having a specific surface area of 0.5-20 m2/g and containing ≥ 30 carboxyl groups at ends of the molecule chain per 106carbon...

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Bibliographische Detailangaben
Hauptverfasser:	Yamanaka, Taku, Sukegawa, Masamichi, Kawahara, Kazuya, Yoshida, Ken, Tsuji, Masayuki, Yoshida, Hirotoshi, Kato, Taketo, Hagi, Keisuke, Hosokawa, Kazutaka, Tanaka, Yuuji
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS FUELS GENERAL PROCESSES OF COMPOUNDING LUBRICANTS LUBRICATING COMPOSITIONS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION WORKING-UP
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Beschreibung
Zusammenfassung:	Powder comprising low molecular weight polytetrafluoroethylene (PTFE) having a melt viscosity of 1 x 102to 7 x 105Pa.s at 380°C, having an average particle size of 1.0-50 µm, having a specific surface area of 0.5-20 m2/g and containing ≥ 30 carboxyl groups at ends of the molecule chain per 106carbon atoms in the main chain, the powder having a total content of C8-14-perfluorocarboxylic acids and salts thereof of less than 25 ppb.