A composition includes specific amounts of a poly(phenylene ether), a hydrogenated block copolymer of an alkenyl aromatic monomer and a conjugated diene, a polypropylene, a low molecular weight polybutene, a flame retardant, an ultraviolet absorbing agent, and a poly(alkylene oxide). The composition is useful as an insulation or jacketing material for wires and cables.

A lined pipe or fitting includes an outer layer containing high density polyethylene, and an inner layer containing a blend of poly(phenylene ether), polystyrene, and, optionally, a hydrogenated block copolymer. Relative to corresponding pipes and fittings made from high density polyethylene alone, the lined pipes and fittings exhibit improved resistance to chlorine and chlorine derivatives.

A lined pipe or fitting includes an outer layer containing high density polyethylene, and an inner layer containing a blend of poly(phenylene ether), polystyrene, and, optionally, a hydrogenated block copolymer. Relative to corresponding pipes and fittings made from high density polyethylene alone, the lined pipes and fittings exhibit improved resistance to chlorine and chlorine derivatives.

A composition includes specific amounts of a poly(phenylene ether), a polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer, an organophosphate ester, and compound that improves adhesion to potting silicone sealant. The adhesion promoter can be a phenolic compound, a hydroxysilyl-terminated polydiorganosiloxane, or a combination thereof. The composition is particularly useful for molding parts of photovoltaic junction boxes that utilize potting silicone sealant as an internal electrical insulator.

A resin composition contains: 60 to 95% by mass of polyphenylene ether (A); 35 to 0% by mass of styrene-based resin (B); and 15 to 5% by mass of elastomer component (C). The component (C) is present as dispersion particles in the resin composition. The dispersion particles have a number average particle size of 0.04 to 0.25 m.

A poly(phenylene ether) can be prepared by a method that includes reacting 2,6-dimethylphenol in the presence of toluene, oxygen, copper ion, bromide ion, and N,N-di-tert-butylethylenediamine to form a poly(phenylene ether). The mole ratio of 2,6-dimethylphenol to copper ion is 160:1 to 300:1, the mole ratio of N,N-di-tert-butylethylenediamine to copper ion is 1.5:1 to 3:1, and the mole ratio of atomic oxygen to 2,6-dimethylphenol is 0.9:1 to 1.5:1. The process can produce poly(phenylene ether) having a high molecular weight and a high incorporated amine content.

Provided is a black shaped product having low specific gravity, an excellent balance of heat resistance and fluidity, extremely few white spots at the shaped product surface, and excellent aluminum vapor deposition external appearance. The black shaped product is obtained through shaping of a resin composition containing 5 mass % to 95 mass % of a polyphenylene ether (A), 2 mass % to 94.96 mass % of a styrene resin (B), and 0.04 mass % to 3 mass % of carbon black (C). The black shaped product includes a mirror surface part at the surface thereof. The number of white spots present within a 52.4 mm.sup.2 area of the mirror surface part is 30 or less.

Provided is a black shaped product having low specific gravity, an excellent balance of heat resistance and fluidity, extremely few white spots at the shaped product surface, and excellent aluminum vapor deposition external appearance. The black shaped product is obtained through shaping of a resin composition containing 5 mass % to 95 mass % of a polyphenylene ether (A), 2 mass % to 94.96 mass % of a styrene resin (B), and 0.04 mass % to 3 mass % of carbon black (C). The black shaped product includes a mirror surface part at the surface thereof. The number of white spots present within a 52.4 mm.sup.2 area of the mirror surface part is 30 or less.

A polyphenylene ether-based resin composition that is an aspect of the present invention contains 2 to 20 parts by mass of a polypropylene homopolymer (c) and 1 to 25 parts by mass of an inorganic filler (d) with respect to 100 parts by mass of a polyphenylene ether-containing resin (A) containing a polyphenylene ether-based resin (a) or containing the polyphenylene ether-based resin (a) and a styrene-based resin (b).

An object of the present disclosure is to provide a polyphenylene ether with excellent solubility in general-purpose aromatic solvents and general-purpose ketone-based solvents and a production method of the same. A polyphenylene ether containing a repeating unit derived from the phenol of the formula (1), a method for producing the same, a thermosetting composition, a prepreg, and a laminate are provided.