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Title:
POROUS POLYTETRAFLUOROETHYLENE FILM AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2015/002001
Kind Code:
A1
Abstract:
A porous polytetrafluoroethylene film comprising a fluorine resin having polytetrafluoroethylene as the principal component thereof, wherein the total surface area of the resin fibers included per section having a surface area of 1m2 and a thickness of 25μm is 4000m2 or higher, and the melting peak of the film is 333°C or lower.

Inventors:
HAYASHI FUMIHIRO (JP)
MURATA AYA (JP)
TSUJIWAKI HIROYUKI (JP)
UNO ATSUSHI (JP)
Application Number:
PCT/JP2014/066555
Publication Date:
January 08, 2015
Filing Date:
June 23, 2014
Export Citation:
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Assignee:
SUMITOMO ELEC FINE POLYMER INC (JP)
International Classes:
B01D71/36; B01D69/06; C08J9/28
Domestic Patent References:
WO2010092938A12010-08-19
Foreign References:
JPH03174452A1991-07-29
JP2010094579A2010-04-30
JP2012045524A2012-03-08
JP2011052175A2011-03-17
Other References:
See also references of EP 3017860A4
Attorney, Agent or Firm:
NISHIMA, Hideaki et al. (JP)
Hideaki Futajima (JP)
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