Title:
低分子量ポリテトラフルオロエチレンの製造方法
Document Type and Number:
Japanese Patent JP6860093
Kind Code:
B2
Abstract:
Provided is a method for producing low molecular weight polytetrafluoroethylene less likely to generate C6-C14 perfluorocarboxylic acids and salts thereof. The method for producing low molecular weight polytetrafluoroethylene includes: (1) feeding into an airtight container in the absence of oxygen: high molecular weight polytetrafluoroethylene: and a halogenated polymer having a halogen atom other than a fluorine atom; and (2) irradiating the high molecular weight polytetrafluoroethylene to provide low molecular weight polytetrafluoroethylene having a melt viscosity at 380°C of 1.0 × 102to 7.0 × 105Pa·s.
Inventors:
Masayuki Tsuji
Yuji Tanaka
Hirokazu Yukawa
Yuji Tanaka
Hirokazu Yukawa
Application Number:
JP2019570743A
Publication Date:
April 14, 2021
Filing Date:
February 05, 2019
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
C08J3/26; C08F8/50; C08F14/24; C08F14/26; C08J3/28
Domestic Patent References:
| JP2000290409A | ||||
| JP4878252A | ||||
| JP2003253007A | ||||
| JP201428953A | ||||
| JP4948671B1 |
Attorney, Agent or Firm:
Atomi International Patent Office