Abstract: An object of the present invention is to provide a method for recovering a fluorine-containing ether capable of recovering a fluorine-containing ether used for producing a fluoropolymer, in higher recovery yield and in a shorter time. The present invention relates to a method for recovering a fluorine-containing ether, including the steps of: producing a wet fluoropolymer by suspension polymerization, solution polymerization, or bulk polymerization in the presence of at least a specific fluorine-containing ether; vaporizing and discharging vaporizable substances including the fluorine-containing ether by heating the wet fluoropolymer in a container; and transferring the vaporizable substances in the vaporized state to a cooling means to cool the vaporizable substances.

Abstract: A composition which can provide foamed moldings and foamed electric wires having a small average cell size and a high foam content and causing fewer sparks. The composition includes a fluororesin (A) and a compound (B) which is a sulfonic acid or a salt thereof. The sulfonic acid is represented by the following formula (1): F(CF2)nSO3H (1) wherein n is 4 or 5, or the following formula (2): F(CF2)nCH2CH2SO3H (2) wherein n is 4 or 5. Also disclosed is a foamed molding formed from the composition and a method for producing a foamed molding.

Abstract: The present invention aims to provide an ETFE film having excellent transparency and heat resistance and cost efficiency. The present invention relates to a film including a copolymer containing an ethylene unit, a tetrafluoroethylene unit, and a (fluoroalkyl)ethylene unit represented by Formula (1): CH2?CX—Rf??(1) wherein X represents H or F, and Rf represents a fluoroalkyl group having 2 or more carbon atoms, the copolymer containing the (fluoroalkyl)ethylene unit in an amount of 0.8 to 2.5 mol % relative to the amount of all the monomer units and containing the ethylene unit and the tetrafluoroethylene unit at a molar ratio of 30.0/70.0 to 50.0/50.0, the film having a crystallinity of 68% or less, the crystallinity being calculated on the basis of a diffraction intensity curve of the film resulting from X-ray diffraction measurement.

Abstract: The present invention provides an aqueous fluoropolymer dispersion that shows favorable dispersion stability and is less likely to have a pH decrease even after storage for a long period of time. The present invention provides an aqueous fluoropolymer dispersion including: a fluoropolymer; a fluorine free surfactant; at least one organic electrolyte selected from the group consisting of hydroxy monocarboxylic acids, hydroxy dicarboxylic acids, tricarboxylic acids, and amino acids; and a fluorine-containing anionic surfactant containing not more than 7 carbon atoms.

Abstract: The present invention aims to provide a fluororesin composition for a molded product that is excellent in tensile strength and flex resistance. The present invention relates to a fluororesin composition that contains a fluororesin and a fluorinated nanodiamond. The amount of the fluorinated nanodiamond is 0.001 to 5% by mass based on the fluororesin.

Abstract: The present invention provides a fluid transfer member having thermal stability on the occasion of molding, stress cracking resistance and low liquid chemical permeability at the same time. The present invention is a fluid transfer member which is composed by a laminate containing a layer [P] comprising a fluoropolymer and/or a fluorine-free organic material and a layer [Q] comprising a chlorotrifluoroethylene copolymer.

Abstract: The present invention provides an aqueous fluoropolymer dispersion that shows favorable dispersion stability and is less likely to have a pH decrease even after storage for a long period of time. The present invention provides an aqueous fluoropolymer dispersion including: a fluoropolymer; a fluorine free surfactant; at least one organic electrolyte selected from the group consisting of hydroxy monocarboxylic acids, hydroxy dicarboxylic acids, tricarboxylic acids, and amino acids; and a fluorine-containing anionic surfactant containing not more than 7 carbon atoms.

Abstract: The present invention provides a laminate having an environmental cracking resistance for a fuel and a fuel impermeability and, in addition, higher in productivity. The present invention is a laminate including a chlorotrifluoroethylene copolymer layer (C) and a fluorine-free organic material layer (K), wherein the chlorotrifluoroethylene copolymer has a melt flow rate of 15.0 to 40.0 (g/10 minutes) and contains 15.0 to 25.0 mole percent of chlorotrifluoroethylene units relative to all monomer units.

Abstract: The present invention provides a molded article for a biodiesel fuel having excellent durability against a biodiesel fuel. The invention is a molded article for a biodiesel fuel of which the surface to be contacted with a biodiesel fuel is made of a fluorine-containing ethylenic resin.

Abstract: The present invention provides a laminate which is highly impermeable to fuels and has high fuel crack resistance. The present invention is a laminate having: a layer (A) comprising a fluorinated ethylenic polymer; a layer (B) comprising a chlorotrifluoroethylene copolymer; and a layer (C) comprising a fluorine-free organic material (P); the fluorinated ethylenic polymer being different from the chlorotrifluoroethylene copolymer forming the layer (B) in one and the same laminate and the layer (A), the layer (B), and the layer (C) being bonded together in that order.

Abstract: The present invention provides a laminate having an environmental cracking resistance for a fuel and a fuel impermeability and, in addition, higher in productivity. The present invention is a laminate including a chlorotrifluoroethylene copolymer layer (C) and a fluorine-free organic material layer (K), wherein the chlorotrifluoroethylene copolymer has a melt flow rate of 15.0 to 40.0 (g/10 minutes) and contains 15.0 to 25.0 mole percent of chlorotrifluoroethylene units relative to all monomer units.

Abstract: The present invention provides a CTFE copolymer-containing laminate produced by coextrusion molding of a PFA and/or FEP layer and a CTFE copolymer layer with the thermal degradation of the latter layer being suppressed and the liquid chemical impermeability and gas barrier properties, among others, being improved as well as a method of producing the same. The present invention is a chlorotrifluoroethylene copolymer-containing laminate having a layer (A) comprising a tetrafluoroethylene/perfluoro(vinyl ether) copolymer and/or a tetrafluoroethylene/hexafluoropropylene copolymer and a layer (B) comprising a chlorotrifluoroethylene copolymer, the layer (A) and the layer (B) being formed by coextrusion molding under a condition such that the temperature of a flow path (pa) through which a layer (A)-forming material (a) flows is 300 to 400° C. and the temperature of a flow path (pb) through which a layer (B)-forming material (b) flows is 250 to 350° C.

Abstract: The present invention provides a chlorotrifluoroethylene copolymer endowed with stress cracking resistance, chemical resistance and thermal stability. The present invention is a chlorotrifluoroethylene copolymer constituted of chlorotrifluoroethylene unit, tetrafluoroethylene unit and a monomer [A] unit derived from a monomer [A] copolymerizable with chlorotrifluoroethylene and tetrafluoroethylene, wherein the sum of chlorotrifluoroethylene unit and the tetrafluoroethylene unit amounts to 90 to 99.9 mole percent and the monomer [A] unit amounts to 0.1 to 10 mole percent.

Abstract: The present invention provides a fluid transfer member having thermal stability on the occasion of molding, stress cracking resistance and low liquid chemical permeability at the same time. The present invention is a fluid transfer member which is composed by a laminate containing a layer [P] comprising a fluoropolymer and/or a fluorine-free organic material and a layer [Q] comprising a chlorotrifluoroethylene copolymer.

Abstract: The invention provides a fault diagnosis apparatus which estimates a disconnection fault site intermediate of a branch wiring line in an LSI based on a result of an LSI test performed by using a test pattern. An indefinite value simulation narrowing down section uses a test pattern to perform, for each gate included in a suspected fault gate set, a simulation wherein the output value of the gate is set to an indefinite value, and removes any gate from which a definite value is outputted among those outputs which have been determined to be errors with error test patterns. An output value check narrowing down section removes any gate from the suspected fault gate set if the gate satisfies a condition that the output value thereof at least in one error test pattern is different from that in the other error test patterns.

Abstract: A system for forming test patterns of an LSI as a test pattern formation target includes an extraction condition setting means and a state value data acquiring means. The extraction condition setting means sets a state value extraction condition for the LSI. The state value data acquires data of the state values of the input/output pins of the LSI during the logic simulation of a logic circuit including the LSI while the condition set by the extraction condition setting means is satisfied. The test patterns of the LSI are formed on the basis of the data acquired by the state value data acquiring means.