Title:
FLUORINE-CONTAINING COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2022/181836
Kind Code:
A1
Abstract:
Provided is a fluorine-containing copolymer including a tetrafluoroethylene unit, a hexafluoropropylene unit, and a perfluoro(propyl vinyl ether) unit. The contained amount of the hexafluoropropylene unit is 9.5-11.4 mass% with respect to the total monomer units. The contained amount of the perfluoro(propyl vinyl ether) unit is 0.5-1.6 mass% with respect to the total monomer units. The melt flow rate of the fluorine-containing copolymer at 372°C is 4.1-6.9 g/10 minutes. The total number of carbonyl group-containing terminal groups, -CF=CF2, and -CH2OH is 90 or less per 106 main chain carbon atoms.
Inventors:
ISAKA TADAHARU (JP)
ZENKE YUMI (JP)
YAMAMOTO YUKARI (JP)
ZENKE YUMI (JP)
YAMAMOTO YUKARI (JP)
Application Number:
PCT/JP2022/008452
Publication Date:
September 01, 2022
Filing Date:
February 28, 2022
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C08F8/00; C08F214/26; C08J7/12; H01B7/02
Domestic Patent References:
| WO2019159652A1 | 2019-08-22 | |||
| WO2019004145A1 | 2019-01-03 | |||
| WO2015119053A1 | 2015-08-13 | |||
| WO2019220850A1 | 2019-11-21 |
Foreign References:
| JP2015149274A | 2015-08-20 | |||
| JPH03247609A | 1991-11-05 | |||
| JP2015042740A | 2015-03-05 | |||
| JPS52109588A | 1977-09-13 |
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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