Title:
変性ポリテトラフルオロエチレンファインパウダー及び一軸延伸多孔質体
Document Type and Number:
Japanese Patent JP5930008
Kind Code:
B2
Abstract:
The present invention aims to provide a modified polytetrafluoroethylene fine powder capable of providing a stretched body having high strength, a small pore size, and excellent homogeneity. The modified polytetrafluoroethylene fine powder of the present invention has non-melt-processability, has a standard specific gravity of 2.155 or lower, includes 0.015 mol% or more of a polymer unit derived from perfluoro(methyl vinyl ether) in all the monomer units, is obtained by emulsion polymerizing tetrafluoroethylene and at least the perfluoro(methyl vinyl ether) in the presence of a fluorosurfactant having a LogPOW value of 3.4 or lower, and has an extrusion pressure of 20.0 MPa or lower.
Inventors:
Taku Yamanaka
Makoto Ono
Kohei Yasuda
Masahiko Yamada
Shinichi Chaen
Masahiko Sawada
Takahiro Taira
Hirotoshi Yoshida
Taketo Kato
Makoto Ono
Kohei Yasuda
Masahiko Yamada
Shinichi Chaen
Masahiko Sawada
Takahiro Taira
Hirotoshi Yoshida
Taketo Kato
Application Number:
JP2014242997A
Publication Date:
June 08, 2016
Filing Date:
December 01, 2014
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
C08F214/26; C08F2/24; C08J9/00
Domestic Patent References:
| JP1247408A |
Foreign References:
| WO2013027850A1 | ||||
| WO2013115278A1 | ||||
| WO2007046345A1 | ||||
| WO2010113950A1 | ||||
| WO2005061567A1 |
Attorney, Agent or Firm:
Atomi International Patent Office