Title:
フッ素樹脂の製造方法
Document Type and Number:
Japanese Patent JP7295507
Kind Code:
B2
Abstract:
To provide a method for producing fluororesin particles containing a fluorine-containing aliphatic cyclic structure which is excellent in productivity, can remove a foreign matter, has a large bulk density, is excellent in handleability as a powder and has a small weight loss on heating.SOLUTION: There is provided a method for producing a fluororesin which comprises a polymerization step of polymerizing a monomer containing a fluorine-containing aliphatic cyclic structure in the presence of a radical polymerization initiator to obtain a fluororesin A containing a fluorine-containing aliphatic cyclic structure and a precipitation step of adding a poor solvent c for the fluororesin A to a fluororesin A solution containing the fluororesin A containing a fluorine-containing aliphatic cyclic structure and a poor solvent b to precipitate the fluororesin A.SELECTED DRAWING: None
Inventors:
Kota Sakaguchi
Tomonari Nagai
Tomoya Shimono
Kazuya Iwanaga
Tomonari Nagai
Tomoya Shimono
Kazuya Iwanaga
Application Number:
JP2019061861A
Publication Date:
June 21, 2023
Filing Date:
March 27, 2019
Export Citation:
Assignee:
Tosoh Corporation
International Classes:
C08F14/18; C08J3/14
Domestic Patent References:
| JP2009209365A | ||||
| JP2245006A | ||||
| JP8034820A |
Foreign References:
| WO2010137627A1 | ||||
| WO2017006841A1 | ||||
| WO2016104380A1 | ||||
| WO2013018730A1 | ||||
| WO2014104160A1 | ||||
| US20180133660 |
Attorney, Agent or Firm:
Sykes Patent Attorney Corporation