Title:
POLYTETRAFLUOROETHYLENE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2010/113950
Kind Code:
A1
Abstract:
Disclosed is a polytetrafluoroethylene suitable for forming a porous polytetrafluoroethylene film using a water-soluble and highly volatile surfactant. The polytetrafluoroethylene has non-melt secondary processability, and has a standard specific gravity of 2.160 or less, an average primary particle diameter of 150 nm or more, and a stress relaxation time of 500 sec or more, and is obtained by the emulsion polymerization of tetrafluoroethylene in the presence of a fluorinated surfactant having a logPow of 3.4 or less, and has a rupture strength of 29.7 N or more.
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Inventors:
ONO MAKOTO (JP)
SATO HIROYUKI (JP)
SAWAUCHI CHIE (JP)
KATO TAKETO (JP)
SATO HIROYUKI (JP)
SAWAUCHI CHIE (JP)
KATO TAKETO (JP)
Application Number:
PCT/JP2010/055708
Publication Date:
October 07, 2010
Filing Date:
March 30, 2010
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
ONO MAKOTO (JP)
SATO HIROYUKI (JP)
SAWAUCHI CHIE (JP)
KATO TAKETO (JP)
ONO MAKOTO (JP)
SATO HIROYUKI (JP)
SAWAUCHI CHIE (JP)
KATO TAKETO (JP)
International Classes:
C08F2/26; C08F14/26
Domestic Patent References:
WO2007049517A1 | 2007-05-03 | |||
WO2005042593A1 | 2005-05-12 | |||
WO2009001894A1 | 2008-12-31 | |||
WO2005042593A1 | 2005-05-12 | |||
WO2008060461A1 | 2008-05-22 | |||
WO2007046377A1 | 2007-04-26 | |||
WO2007119526A1 | 2007-10-25 | |||
WO2007046482A1 | 2007-04-26 | |||
WO2007046345A1 | 2007-04-26 |
Foreign References:
JP2003119204A | 2003-04-23 | |||
JP2000143727A | 2000-05-26 | |||
JP4452354B2 | 2010-04-21 | |||
JP2002201217A | 2002-07-19 | |||
JP3552685B2 | 2004-08-11 | |||
JP2007046345A | 2007-02-22 | |||
JP2009001894A | 2009-01-08 | |||
US20070015864A1 | 2007-01-18 | |||
US20070015865A1 | 2007-01-18 | |||
US20070015866A1 | 2007-01-18 | |||
US20070276103A1 | 2007-11-29 | |||
US20070117914A1 | 2007-05-24 | |||
US20070142541A1 | 2007-06-21 | |||
US20080015319A1 | 2008-01-17 | |||
US3250808A | 1966-05-10 | |||
US3271341A | 1966-09-06 | |||
JP2003119204A | 2003-04-23 | |||
JP2005527652A | 2005-09-15 | |||
US4576869A | 1986-03-18 |
Other References:
See also references of EP 2409996A4
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
Patent business corporation Yasutomi international patent firm (JP)
Patent business corporation Yasutomi international patent firm (JP)
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