Daikin industries, ltd. (20250011491). FLUORINE-CONTAINING COPOLYMER
FLUORINE-CONTAINING COPOLYMER
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FLUORINE-CONTAINING COPOLYMER
This abstract first appeared for US patent application 20250011491 titled 'FLUORINE-CONTAINING COPOLYMER
Original Abstract Submitted
there is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 8.0 to 9.4% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 0.6 to 1.5% by mass with respect to the whole of the monomer units, a melt flow rate at 372ďż˝ c. of 6.8 to 9.9 g/10 min, and a total number of a carbonyl group-containing terminal group, âcfâcfand âchoh per 10main-chain carbon atoms of 90 or less.