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US 12,187,821 B2Granted
Fluorosulfonyl group-containing compound, fluorosulfonyl group-containing monomer, and their production methods
AssigneeAGC Inc.
InventorsTakeshi Hirai, Daisuke Jomuta, Chikaya Tamitsuji
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Abstract
A method for producing a fluorosulfonyl group-containing compound to obtain a compound represented by the following formula 5 from a compound represented by the following formula 1 as a starting material and a method for producing a fluorosulfonyl group-containing monomer in which the fluorosulfonyl group-containing compound is used: wherein R1 and R2 are a C1-3 alkylene group, and RF1 and RF2 are a C1-3 perfluoroalkylene group.
Claims4
A fluorosulfonyl group-containing polymer, comprising:
- a plurality of copolymerized units comprising tetrafluoroethylene and a monomer of Formula 9a:
- wherein each of RF1 and RF2 is CF2, and
- wherein
- a content of the copolymerized units of the monomer of Formula 9a is in a range of 13.4 to 18.3 mole %, of the total copolymerized units, and
- a volume flow rate TQ of the fluorosulfonyl group-containing polymer is in a range of 200° C. to 330° C.
2 more elements
Dependencies are inferred from the claim text.