Abstract: Provided is a fluororesin coating composition for forming a topcoat having improved non-tackiness and water and oil repellency. The fluororesin is crystalline tetrafluoroethylene and perfluoro(ethyl vinyl ether) copolymer having a perfluoro(ethyl vinyl ether) content of 8 to 20 mass % based on the total mass of the copolymer.

Abstract: Provided is a melt processible fluororesin molded article with reduced metal ions after molding (eluted metal ions) and submicron size fine particles. The melt processible fluororesin molded article has an amount of eluted Ni ions (in pg/cm2) and amount of eluted Cr ions (in pg/cm2) and amount of eluted Mo ions (in pg/cm2) in a test solution after eluting for 20 hours at 60° C. using 12% nitric acid, quantitatively analyzed by the ICP (induced coupled plasma) mass analysis method, satisfy the following formula: 0.5?1?[(M1+M2)/(M1+M2+M3)]<1, wherein M1 refers to the eluted Cr ion amount (in pg/cm2), M2 refers to the eluted Mo ion amount (in pg/cm2), and M3 refers to the eluted Ni ion amount (in pg/cm2).

Abstract: Provided is a coating film having excellent durability and wear resistance, and utility as mold surface release coating. The coating film has excellent releasability (non-adhesiveness) over a long period of time. Further provided is a coating composition capable of forming such a coating film, the coating composition containing a fluoropolymer and an oil that is a liquid at 25° C., wherein the decomposition temperature of the oil is higher than the melting point of the fluoropolymer.

Abstract: An object of the present invention is to provide a hot-melt fluorine resin powder coating composition containing a filler, which has a large film thickness that can be coated once, a large limit film thickness for an overcoating, and can be thickly coated. The present invention is a powder coating composition, which is a powder mixture, containing: first hot-melt fluorine resin particles having an average particle diameter of 2 to 100 ?m in which a filler is dispersed in the particles; second hot-melt fluorine resin particles having an average particle diameter of 10 to 200 ?m; and charge controlling agent particles.

Abstract: Provided is a novel fluororesin useful as an electronic substrate material for high speed transmission. The fluorine resin has the structure of Formula (I), wherein n is within a range of 1 to 100, L has the structure in Formula (II) or Formula (III), R1 and R2 are independently hydrogen atoms, C1 to C10 alkyl groups, C1 to C10 haloalkyl groups, or C6 to C10 aryl groups, or R1 and R2 may be combined to form a ring structure that may include a substituent, R3 and R4 are each independently hydrogen, fluorine, C1 to C10 saturated or unsaturated hydrocarbon groups in which a portion of or all hydrogens may be substituted with a halogen, and C6 to C10 aryl groups in which a portion of or all hydrogens may be substituted with a halogen, and X is a group containing an olefinic carbon-carbon double bond or a carbon-carbon triple bond and at least one fluorine atom.

Abstract: Provided is a compression molding composition, in which an emulsion-polymerized polytetrafluoroethylene (PTFE) and a filler are mixed in a substantially uniform manner without generating an aggregate, and the used PTFE is not particularly limited. The compression molding composition includes emulsion-polymerized polytetrafluoroethylene, a heat-processible fluoropolymer, and a filler, the melt flow rate (MFR) of the heat-processible fluoropolymer is from 0.01 to 100 g/10 min, and the content of the heat-processible fluoropolymer is from 1 to 40 mass % relative to the total of the emulsion-polymerized polytetrafluoroethylene and the heat-processible fluoropolymer.

Abstract: Provided is a fluororesin coating composition for forming a topcoat having improved non-tackiness and water and oil repellency. The fluororesin is crystalline tetrafluoroethylene and perfluoro(ethyl vinyl ether) copolymer having a perfluoro(ethyl vinyl ether) content of 8 to 20 mass % based on the total mass of the copolymer.

Abstract: A PFA molded article of a copolymer (PFA) of tetrafluoroethylene (TFE) and perfluoro(alkylvinyl ether) (PAVE), the content of the PAVE therein being from 1 to 10% by mol, characterized in that the PFA molded article has a flex life value of not less than 2,000,000 times, a zero shear viscosity of from 10,000 to 20,000 Pa·s, and a heating weight loss of not more than 0.05% by weight, and a process for the production thereof. The PFA molded article has a high flex life value, a low heating weight loss and a low zero share viscosity yet maintaining excellent mechanical properties such as tensile strength, etc., and can be produced in good yields.

Abstract: Disclosed are azeotropic compositions comprising a perfluoroheptene, and a chlorotrifluoropropene. Also disclosed herein are novel methods of using these compositions as novel solvents, degreasing or defluxing solvent, or carrier fluids.

Abstract: Provided is a mold part which does not generate periodic irregularities (scale pattern) which appear in the direction orthogonal to the drawing direction (MD) of the mold part having a surface which slides parallel to a molded article when the molded article is removed from the mold after injection molding during injection molding of a thermoplastic resin (in particular, a thermoplastic fluoropolymer), an injection molding method using the same, and a molded article in which periodic irregularities (scale pattern) (which appear in the direction orthogonal to the drawing direction (MD) of the mold part) do not appear. The mold part is used for injection molding of a thermoplastic resin, and includes a surface which slides substantially parallel to a molded article when the molded article is removed from the mold after injection molding, wherein the average tilt angle in the sliding direction (MD) is 1.5° or higher.

Abstract: To provide a resin pellet that is suitable for molding a molded product used in a semiconductor manufacturing apparatus and inherently has high cleanliness, and a molded product including the resin pellets used in a semiconductor manufacturing apparatus. A resin pellet including at least one selected from tetrafluoroethylene homopolymers or copolymers, wherein the evaporation residue after evaporating and drying the extract obtained by dissolving and extracting the fluorine-containing substance contained in or adhering to the resin pellet in a fluorine-containing extractant is 20×10?6 mg/mm2 or less.

Abstract: Provided is a porous membrane including polytetrafluoroethylene and/or modified polytetrafluoroethylene having a small pore diameter, thin film thickness, high porosity, and high strength; and a method for manufacturing the same. The porous membrane including polytetrafluoroethylene and/or modified polytetrafluoroethylenehas bubble point of isopropyl alcohol according to JIS K3832 of 600 kPa or more, and tensile strength according to JIS K6251 of 90 MPa or more.

Abstract: Provided is a melt processible fluororesin composition for injection molding of articles that has melt flow that facilitates injection molding, that can enhance strength of a fluororesin weld line area in an injection molded article, and that achieves excellent release from a mold. The fluororesin composition includes two or more types of melt processible fluororesins having different melt flow rates; one of the melt processible fluororesins being a high melt flow rate melt processible fluororesin having a melt flow rate of 35 g/10 min or greater, and another being a low melt flow rate melt processible fluororesin having a melt flow rate of 10 g/10 min or greater but less than 35 g/10 min; and wherein the ratio of the melt flow rate (MFRa) of the high MFR melt processible fluororesin to the melt flow rate (MFRb) of the low MFR melt processible fluororesin (MFRa/MFRb) is from 1 to 10.

Abstract: Provided is a melt molding manufacturing method wherein the mold exhibits excellent molded product releasability over a long period of time, and that can produce a molded product having a matte surface with suppressed surface gloss. The molding manufacturing method for manufacturing the molded product involves forming the melt molded product in a mold having a coating on the surface of the mold, wherein the coating is a layer of fluororesin having dispersed therein oil and filler having an average particle size of 300 nm or less.

Abstract: The problem of the present invention is to provide a novel polytetrafluoroethylene porous film having a small pore diameter, small film thickness, high porosity, and high strength, and a production method thereof. The present invention provides a polytetrafluoroethylene porous film, wherein a bubble point in isopropyl alcohol (IPA) according to JIS K3832 is not less than 400 kPa, and a tensile strength based on JIS K6251 is not less than 50 MPa.

Abstract: Described is a peelable heat shrink tube composed of a fluororesin and having a determination coefficient calculated from [Equation 1] below using an elastic modulus ratio (%) of more than 0, but 0.90 or less: Determination ? coefficient = ( correlation ? coefficient ) 2 = [ ( covariance ) ( standard ? deviation ? of ? X ) ? ( standard ? deviation ? of ? Y ) ] 2 [ Equation ? 1 ] where X, Y and covariance represent the following: X: Proportion of the position of each point, where the elastic modulus was measured, from the interior of the tube Y: Elastic modulus ratio in each region Covariance: Average of the product of deviations of X and Y.

Abstract: This application provides a coating film having excellent durability and wear resistance that, when applied to a mold surface, has excellent releasability (non-adhesiveness) over a long period of time, and a fluoropolymer coating composition that is able to form such a coating film. The fluoropolymer coating composition contains a fluoropolymer and a fluoro oil, where the decomposition temperature of the fluoro oil is higher than the melting point of the fluoropolymer.

Abstract: Provided is a fluorine-containing solvent for gas chromatography mass spectrometry of fluorine-containing substances found contaminating surfaces of fluororesin melt-molded products and detrimental to the use of such products for handling fluids in semiconductor manufacture. Also provided is a quantitative determination method for such fluorine-containing substances and a qualitative analysis method for such fluorine-containing substances based on a gas chromatography mass spectrometry method using the fluorine-containing solvent to enable the determination of the presence or absence of trace amounts of contaminant fluorine-containing substances existing as fine particles on surfaces of melt-molded fluororesin products.

Abstract: Provided is a molded body with a hollow portion comprising tetrafluoroethylene and perfluoro(alkyl vinyl ether) copolymer, which is obtained by heat treating a molded body with a hollow portion obtained by melt molding tetrafluoroethylene and perfluoro(alkyl vinyl ether) copolymer having a melt flow rate of 0.1 to 100 g/10 min when measured with a load of 5 kg and a measurement temperature of 372±0.1° C. in accordance with ASTM D1238. The heat treatment is carried out at a temperature from 130° C. below the melting point of the copolymer to the melting point of the copolymer. The molded body exhibits excellent blister resistance when utilized in contact with harsh chemicals and under harsh operating conditions.

Abstract: Provided is a coating film having excellent durability and wear resistance, and utility as mold surface release coating. The coating film has excellent releasability (non-adhesiveness) over a long period of time. Further provided is a coating composition capable of forming such a coating film, the coating composition containing a fluoropolymer and an oil that is a liquid at 25° C., wherein the decomposition temperature of the oil is higher than the melting point of the fluoropolymer.