Fluoropolymer powder and method for producing same

The invention provides a powder that is easily redispersible in a liquid medium such as water. The powder contains a fluoropolymer. The fluoropolymer contains at least one group A selected from the group consisting of -SO2Y, -COOR, -SO3X, -SO2NR12, and -COOX, wherein Y is a halogen atom; R is a C1-C...

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Bibliographische Detailangaben
Hauptverfasser:	Yotsumoto, Yuki, Ohtsuka, Kazuhiro, Yoshimura, Takashi, Nakazawa, Masaharu, Shinoki, Noriyuki, Kondo, Masahiro, Ino, Tadashi
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	The invention provides a powder that is easily redispersible in a liquid medium such as water. The powder contains a fluoropolymer. The fluoropolymer contains at least one group A selected from the group consisting of -SO2Y, -COOR, -SO3X, -SO2NR12, and -COOX, wherein Y is a halogen atom; R is a C1-C4 alkyl group; X is M1/L or NR14, where M is a hydrogen atom or an L-valent metal, the L-valent metal being a metal in group 1, group 2, group 4, group 8, group 11, group 12, or group 13 of the periodic table; and R1s are each individually a hydrogen atom or a C1-C4 alkyl group. The powder exhibits a dispersion of 50% or higher. The dispersion is calculated by filtering a composition obtainable by mixing the powder with water through a mesh having an opening of 20 μm.