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US 11,826,975 B2Granted
Molded article and manufacturing method for molded article
AssigneeDaikin Industries, Ltd.
InventorsHitoshi Imamura, Tatsuya Funaoka, Takeshi Shimono
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Abstract
The invention provides a molded article containing a specific fluororesin and having excellent hydrophilicity. The molded article containing the fluororesin has a melt flow rate of 1.00 g/10 min or lower and a water contact angle of 90° or smaller. The fluororesin contains at least one copolymer selected from the group consisting of a copolymer containing a tetrafluoroethylene unit and a perfluoro(alkylvinylether) unit and a copolymer containing a tetrafluoroethylene unit and a hexafluoropropylene unit.
Claims9
A molded article comprising a fluororesin,
- a surface of the molded article having a water contact angle of 90° or smaller,
- the fluororesin containing at least one copolymer selected from the group consisting of a copolymer containing a tetrafluoroethylene unit and a perfluoro(alkylvinylether) unit and a copolymer containing a tetrafluoroethylene unit and a hexafluoropropylene unit, and
- the whole of the molded article having a melt flow rate of 0.20 g/10 min or lower,
- the molded article is obtained by molding the fluororesin to provide an untreated molded article and irradiating the untreated molded article at a temperature of 110° C. to 240° C. in the presence of air.
1 more element
Dependencies are inferred from the claim text.