Title:
FLUORINE-CONTAINING COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2022/181841
Kind Code:
A1
Abstract:
Provided is a fluorine-containing copolymer comprising tetrafluoroethylene units, hexafluoropropylene units, and perfluoro(propyl vinyl ether) units, wherein the content of the hexafluoropropylene units is 9.4-10.3 mass% with respect to the total monomer units, the content of the perfluoro(propyl vinyl ether) units is 1.6-2.9 mass% with respect to the total monomer units, and the melt flow rate at 372°C is 9.0-17.0 g/10 minutes.
Inventors:
ISAKA TADAHARU (JP)
ZENKE YUMI (JP)
YAMAMOTO YUKARI (JP)
ZENKE YUMI (JP)
YAMAMOTO YUKARI (JP)
Application Number:
PCT/JP2022/008459
Publication Date:
September 01, 2022
Filing Date:
February 28, 2022
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C08F8/20; C08F214/26; C08J5/00; C08J7/12; H01B7/02
Domestic Patent References:
| WO2001018076A1 | 2001-03-15 | |||
| WO2006135091A1 | 2006-12-21 | |||
| WO2019220850A1 | 2019-11-21 |
Foreign References:
| US4029868A | 1977-06-14 | |||
| JP2020100823A | 2020-07-02 | |||
| JPS62192411A | 1987-08-24 | |||
| JP2017503052A | 2017-01-26 | |||
| JPS52109588A | 1977-09-13 | |||
| JPS5869213A | 1983-04-25 |
Other References:
EZHOV V. K.: "Investigation of permeability of fluorine and certain fluorinated gases through nonporous fluorine-resistant polymers", PETROLEUM CHEMISTRY, PLEIADES PUBLISHING, MOSCOW, vol. 54, no. 8, 7 January 2015 (2015-01-07), Moscow, pages 608 - 611, XP035421678, ISSN: 0965-5441, DOI: 10.1134/S0965544114080052
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
Download PDF: