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US 11,773,225 B2Granted
Molded article
AssigneeDaikin Industries, Ltd.
InventorsToshiyuki Fukushima, Kyouhei Sawaki, Ken Okanishi
Life of this patent
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Abstract
A molded article containing a crystal of a fluoropolymer. The fluoropolymer contains at least one selected from vinylidene fluoride/tetrafluoroethylene copolymer, polychlorotrifluoroethylene, an ethylene/tetrafluoroethylene copolymer, a tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer and a tetrafluoroethylene/hexafluoropropylene copolymer. Further, the crystal is a nano-oriented crystal having a size of 300 nm or smaller.
Claims2
A molded article comprising a crystal of a fluoropolymer,
- the fluoropolymer comprising at least one selected from the group consisting of a polychlorotrifluoroethylene containing CTFE unit in an amount of from 90 to 100 mol % relative to the fluoropolymer, an ethylene/tetrafluoroethylene copolymer which may contain units copolymerizable with TFE and ethylene in an amount of up to 10 mol % relative to the fluoropolymer, a tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer which may contain units copolymerizable with TFE and PAVE unit in an amount of up to 10 mol % relative to the fluoropolymer, and a tetrafluoroethylene/hexafluoropropylene copolymer which may contain units copolymerizable with the TFE unit and HFP unit in an amount of up to 10 mol % relative to the fluoropolymer,
- the crystal being a nano-oriented crystal having a size of 300 nm or smaller.
Dependencies are inferred from the claim text.