Invention Grant
- Patent Title: Process for producing fluoropolymer particles
- Patent Title (中): 含氟聚合物颗粒的制造方法
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Application No.: US12644306Application Date: 2009-12-22
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Publication No.: US08378063B2Publication Date: 2013-02-19
- Inventor: Susumu Saito , Tetsuji Shimohira , Takashi Saeki , Junichi Tayanagi
- Applicant: Susumu Saito , Tetsuji Shimohira , Takashi Saeki , Junichi Tayanagi
- Applicant Address: JP Tokyo
- Assignee: Asahi Glass Company, Limited
- Current Assignee: Asahi Glass Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-325358 20081222
- Main IPC: C08F6/00
- IPC: C08F6/00

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.
Public/Granted literature
- US20100160598A1 PROCESS FOR PRODUCING FLUOROPOLYMER PARTICLES Public/Granted day:2010-06-24
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