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Title:
PRODUCTION METHOD OF MODIFIED POLYTETRAFLUOROETHYLENE AND COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2020/105651
Kind Code:
A1
Abstract:
A production method of modified polytetrafluoroethylene is provided which is characterized by involving a polymerization step for obtaining modified polytetrafluoroethylene by polymerizing tetrafluoroethylene and a modified monomer in an aqueous medium in the presence of a polymer (I) which includes a polymerization unit (I) based on the monomer represented in general formula (I). (I) CX1X3 = CX2R(-CZ1Z2-A0)m (In the formula, X1 and X3 are independently F, Cl, H or CF3; X2 is H, F, an alkyl group or a fluorine-containing alkyl group; A0 is an anionic group; R is a linking group; Z1 and Z2 are independently H, F, an alkyl group or a fluorine-containing alkyl group; and m is an integer greater than or equal to 1.)

Inventors:
NANBA YOSHINORI (JP)
ICHIKAWA KENJI (JP)
FUJIMOTO YOHEI (JP)
YOSHIDA HIROTOSHI (JP)
SATO HIROYUKI (JP)
KATO TAKETO (JP)
ITO KENGO (JP)
YAMANAKA TAKU (JP)
Application Number:
PCT/JP2019/045335
Publication Date:
May 28, 2020
Filing Date:
November 19, 2019
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
C08F2/44; C08F214/18; C08F259/08
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See also references of EP 3885372A4
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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