Abstract: A fluororesin including a vinylidene fluoride unit and a tetrafluoroethylene unit. The fluororesin has a gas chromatography-mass spectrometry total ion chromatogram including a peak which is assigned to a component having a molecular weight of 202 to 903 and which has a peak intensity of 1000 or lower. Also disclosed is a molded article formed from the fluororesin.

Abstract: A binder for a secondary battery containing a fluorine-containing polymer (A) and polyvinylidene fluoride (B). The fluorine-containing polymer (A) contains a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer (2-2) represented by the following formula (2-2): wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation or an organic cation. Also disclosed is an electrode mixture and an electrode for a secondary battery including the binder, and a secondary battery including the electrode.

Abstract: An object of the present disclosure is to provide a film that has high water slidability, and a substrate having a surface covered with the film. The present disclosure provides a film having the properties of a sliding velocity of 150 mm/s or more at an inclination angle of 30° and an average surface roughness (Ra) of 1 ?m or less, and further provides a substrate having a surface covered with the film.

Abstract: An object of the present disclosure is to provide an antenna cover base material that is coated with a fluoropolymer-containing film and that has excellent durability of water sliding. The present disclosure pertains to an antenna cover base material coated with a fluoropolymer-containing film, the film having the properties of a water sliding velocity of 150 mm/s or more at an inclination angle of 30°, and an average surface roughness (Ra) of 1 ?m or less.

Abstract: Provided is a positive electrode structure including a current collector and a positive electrode mixture layer provided on one or each of both sides of the current collector, wherein the positive electrode mixture layer has a thickness of 69 ?m or more, the positive electrode mixture layer has a density of 3.0 to 5.0 g/cm3, the positive electrode mixture layer includes a positive electrode active material and a binder, the positive electrode active material includes a lithium-nickel composite oxide, the binder includes a fluorine-containing copolymer, the fluorine-containing copolymer contains a vinylidene fluoride unit and a fluorinated monomer unit (excluding the vinylidene fluoride unit), and the fluorine-containing copolymer has a storage modulus (E?) at 30° C. of 100 to 1,100 MPa and a storage modulus (E?) at 60° C. of 50 to 500 MPa, as measured by dynamic viscoelasticity.

Abstract: A binder and an electrode mixture for a secondary battery. The binder contains a fluorine-containing polymer containing a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer (2-2) represented by the following formula (2-2): R5R6C?CR7R8CO2Y1??(2-2) wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation and/or an organic cation.

Abstract: A binder for a secondary battery containing a fluorine-containing polymer (A) and polyvinylidene fluoride (B). The fluorine-containing polymer (A) contains a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer (2-2) represented by the following formula (2-2): wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation or an organic cation. Also disclosed is an electrode mixture and an electrode for a secondary battery including the binder, and a secondary battery including the electrode.

Abstract: A fluororesin including a vinylidene fluoride unit and a tetrafluoroethylene unit. The fluororesin has a gas chromatography-mass spectrometry total ion chromatogram including a peak which is assigned to a component having a molecular weight of 202 to 903 and which has a peak intensity of 1000 or lower. Also disclosed is a molded article formed from the fluororesin.

Abstract: A binder and an electrode mixture for a secondary battery. The binder contains a fluorine-containing polymer containing a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer (2-2) represented by the following formula (2-2): R5R6C?CR7R8CO2Y1??(2-2) wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation and/or an organic cation.

Abstract: The invention provides a fluororesin that is less likely to suffer blistering or cracking even when rapidly decompressed from a high-temperature and high-pressure state. The fluororesin contains a vinylidene fluoride unit. The vinylidene fluoride unit represents 10.0 to 100 mol % of all the monomer units constituting the fluororesin. The fluororesin exhibits a weight loss of 0.1% or less after heated at 300° C. for two hours.

Abstract: A connection method and connection apparatus for connecting long belt-shaped non-oriented resin films that are continuously advanced. A leading resin film and a trailing resin film can be connected while processing in a following step is continuously performed. The tip end of a trailing resin film (22) is joined and connected to a leading resin film {11), and then a portion, immediately after the connected position, of the leading resin film is heated to a predetermined temperature range and cut.