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Title:
MANUFACTURING METHOD FOR COMPOSITION INCLUDING LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE
Document Type and Number:
WIPO Patent Application WO/2019/156067
Kind Code:
A1
Abstract:
The present invention provides a manufacturing method for a composition including a low molecular weight polytetrafluoroethylene, said manufacturing method including: (I) a step in which ionizing radiation is applied to a composition including a high molecular weight polytetrafluoroethylene to obtain a composition including a low molecular weight polytetrafluoroethylene with a melt viscosity at 380°C within the range 1.0×102-7.0×105Pa∙s; and (II) a step in which a perfluorinated compound that is included the composition including the low molecular weight polytetrafluoroethylene obtained in the aforementioned step is decomposed.

Inventors:
TSUJI MASAYUKI (JP)
NAKAMURA TAKAYUKI (JP)
TANAKA YUUJI (JP)
Application Number:
PCT/JP2019/004055
Publication Date:
August 15, 2019
Filing Date:
February 05, 2019
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
C08J3/28; C08F14/26; C08J3/12; C08K5/09; C08L27/18
Foreign References:
JP2002327067A2002-11-15
JP2011052063A2011-03-17
JP2006063140A2006-03-09
JP2007131671A2007-05-31
JP2002105124A2002-04-10
JP2001513579A2001-09-04
JPS4719609B11972-06-05
JPH10147617A1998-06-02
JPS4719609B11972-06-05
Other References:
See also references of EP 3750946A4
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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