| abstract |
The present invention provides a powder that can be easily redispersed in a liquid medium such as water. A powder which is a powder of a fluoropolymer, wherein the fluoropolymer has a material selected from the group consisting of -SO 2 Y, -COOR, -SO 3 X, -SO 2 NR 1 2 and -COOX (Y represents a halogen atom R represents an alkyl group having 1 to 4 carbon atoms. X represents M 1/L or NR 1 4. M represents a hydrogen atom or an L-valent metal, and the above-mentioned L-valent metal belongs to Group 1, Group 2 of the periodic table, Group 4, Group 8, Group 11, Group 12, or Group 13 metals. R 1 each independently represents a hydrogen atom or a C 1-4 alkyl group) at least one kind of group A, The composition obtained by mixing the above-mentioned powder and water was filtered through a mesh with a sieve opening of 20 μm to obtain a dispersion degree of 50% or more. |