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US 12,116,434 B2Granted
Wafer cup
AssigneeDaikin Industries, Ltd.
InventorsHitoshi Imamura, Eri Mukai
Life of this patent
Estimating the term…
Abstract
A wafer cup including a copolymer containing a tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit. A water contact angle of at least a part of an inner surface of the wafer cup is 80 degrees or less.
Claims3
A wafer cup comprising a copolymer comprising a tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, wherein
- a water contact angle of at least a part of an inner surface of the wafer cup is 40 degrees or more and 80 degrees or less, and
- a content of the fluoro(alkyl vinyl ether) unit in the copolymer is 3.5 to 7.0% by mass based on all monomer units.
Dependencies are inferred from the claim text.