Fluororesin coating film
AssigneesE. I. Du Pont de Nemours and Company, DuPont-Mitsui Fluorochemicals Co., Ltd.
InventorsTomohito Sasaki, Matsunori Takada
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Abstract
A fluororesin coating film for improved permeation resistance that maintains excellent wear resistance and also products containing such film. The fluororesin coating has at least two layers that are formed on a substrate where at least one of the layers contains filler with a new Mohs hardness of ≧7 and a tetrafluoroethylene-perfluoro (alkyl vinyl ether) copolymer and tetrafluoroethylene-perfluoro (alkyl vinyl ether) copolymer layer directly below the layer described above.
Claims8
A fluororesin coating film comprising at least two layers formed on a substrate, said layers consisting of at least one layer containing a filler with a new Mohs hardness of 7 or higher and melt-fabricable fluoropolymer, along with a melt-fabricable fluoropolymer directly below the layer described above.
Dependencies are inferred from the claim text.