A method of processing liquid crystal polymer film is provided. The method includes the following steps. A metal substrate is provided. A liquid crystal polymer film is provided. The liquid crystal polymer film and the metal substrate are laminated to form a composite layer. The composite layer is heated at a first temperature and a processed liquid crystal polymer film is obtained through the separation of the heated liquid crystal polymer film from the substrate. A processing device of liquid crystal polymer film is further provided, including a lamination member, a transport member, a heating member, and a separation member.

Adhesive compositions are described that significantly improve the adhesion of polymer overmold compositions to metal substrates in polymer-metal junctions. The adhesive compositions include one or more poly(aryl ether) polymers, where each of the poly(aryl ether) polymers is, independently, a poly(aryl ether sulfone) polymer or a poly(aryl ether ketone) polymer. The overmold composition includes at least one poly(aryl ether ketone) polymer. Polymer-Metal junctions can be formed by, for example, dip-coating, spin-coating, extruding, or injection molding the adhesive composition and/or the overmold composition onto the metal substrate. Desirable applications settings for the polymer-metal junctions described include, but are not limited to electrical wiring.

The present specification relates to a compound comprising an aromatic ring, a polyelectrolyte membrane comprising the same, a membrane-electrode assembly comprising the polyelectrolyte membrane, a fuel cell comprising the membrane-electrode assembly, and a redox flow battery comprising the polyelectrolyte membrane.

A film containing a resin composition containing an aromatic polyetherketone resin (I) and a fluorine-containing copolymer (II). The fluorine-containing copolymer (II) defines a dispersed phase at an average dispersed particle size of 5 .Math.m or smaller. The aromatic polyetherketone resin (I) has a crystallinity of lower than 6%.

The present specification relates to a halogenated compound, a polymer and a polymer electrolyte membrane including the same.

The present specification relates to a polymer electrolyte membrane including a polymer and inorganic particles.

Process for densification of a poly(arylene ether ketone) (PAEK) powder or of a mixture of poly(arylene ether ketone) (PAEK) powders, the process being mixing the powder or the mixture of powders, in a mixer equipped with a rotary stirrer including at least one blade, for a period of between 30 minutes and 120 minutes, preferably of between 30 and 60 minutes, at a blade-tip speed of between 30 m/s and 70 m/s, preferably of between 40 and 50 m/s.

The present specification relates to a polymer with improved acid resistance, a polymer electrolyte membrane including the same, a membrane-electrode assembly including the polymer electrolyte membrane, a fuel cell including the membrane-electrode assembly, and a redox flow battery including the polymer electrolyte membrane.

A hydrofluoroether compound is represented by the following general formula (1): wherein n is 1-2.

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The present invention provides: a polymer electrolyte composition which can achieve excellent proton conductivity under slightly humidified conditions, excellent mechanical strength and excellent physical durability, has excellent practicality, and can be produced using a nitrogen-containing additive, wherein the nitrogen-containing additive can prevent the elution of the additive under a strongly acidic atmosphere during the operation of a fuel cell, has excellent chemical stability so as to tolerate a strongly acidic atmosphere, can be dissolved in various general-purpose organic solvents, has superior processability, can be mixed with an ionic-group-containing polymer, can prevent the occurrence of phase separation during the formation of a film, and can prevent the formation of an island-in-sea-like phase separation structure or the occurrence of bleeding out during the formation of a film; and a polymer electrolyte membrane, a membrane electrode assembly and a polymer electrolyte fuel cell, each of which is produced using the polymer electrolyte composition. The polymer electrolyte composition according to the present invention comprises at least an ionic-group-containing polymer (A) and a nitrogen-containing additive (B), said polymer electrolyte composition being characterized in that the nitrogen-containing additive (B) is represented by a specific structural formula.