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US08378063B2 Process for producing fluoropolymer particles 有权
含氟聚合物颗粒的制造方法

Process for producing fluoropolymer particles
Abstract:
A process for producing fluoropolymer particles includes preparing a solution/dispersion containing fluoropolymer dissolved/dispersed in a first solvent such that the swelling of fluoropolymer by the first solvent is from 50 to 1,200%, and mixing the solution/dispersion with a second solvent such that fluoropolymer forms particles and the swelling of fluoropolymer by the mixture of the first and second solvents is from 0 to 100%. WC/WB is in the range of from 1 to 5, WB represents mass of the first solvent, WC/ represents mass of the second solvent, WC/WB represents a ratio of the mass of the second solvent to the mass of the first solvent. SBC/SB is at most 0.5. SBC represents the swelling by the mixture of the first and second solvents, SB represents the swelling by the first solvent, and SBC/SB represents a ratio of the swelling by the mixture to the swelling by the first solvent.
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