A capped poly(arylene ether) copolymer includes a reactive end group, wherein the capped poly(arylene ether) copolymer is derived from an alkyl, aryl-phenol.

This invention provides a material having a low dissipation factor that is suitable for use as an insulating material for a printed wiring board and the like; a resin composition used for the production of the material; and an application using the material. The present invention relates to a resin composition comprising a mono(C.sub.6-C.sub.20 alkyl)diallyl isocyanurate and a polyphenylene ether resin; a cured product of the resin composition; and use of the cured product.

A polyphenylene ether having a predetermined structure. ##STR00001##

A process for preparation of a biologically active polymer comprising an acrolein derived segment and a polyalkylene glycol oligomer, the process comprising reacting polyalkylene glycol with acrolein in aqueous solution to form a copolymer of molecular weight no more than 1000 Daltons at a temperature of no more than 15° C.

A composition including a compatibilized blend of polyamide, polyphenylene ether and a flameproofing agent that synergistically interact such that plaques produced from the composition pass a glow wire ignition temperature test (GWIT) without producing a flame. Advantageously, the flameproofing agent is non-halogenated and the compositions also free of other halogen containing components. In addition, the compositions are free of fillers and are unexpectedly still able to pass the noted tests.

Described herein are water desalination membranes and methods of desalinating water. Sulfonated poly(arylene ether) polymers are also disclosed, including those comprising one or more sulfonate groups at various points along the polymer chain. The polymers may be used as at least a portion of a water desalination membrane. The polymers described herein are useful for preventing transport of aqueous ionic species (e.g., Na.sup.+ and Cl.sup.−) across a membrane made from the polymers while allowing water to pass. Chlorine-stable polymers are described, as well as polymers exhibiting good performance for rejecting monovalent cations in the presence of polyvalent cations.

There is provided a resin composition exhibiting excellent dielectric properties, high adhesion to a low-roughness surface, heat resistance, and excellent water resistance. This resin composition includes (a) a polymer having a polyphenylene ether backbone and a butadiene backbone in one molecule and having at least one selected from the group consisting of a vinyl group, a styryl group, an allyl group, an ethynyl group and a (meth)acryloyl group and at least any one of (b) a polymer including a styrene butadiene backbone and (c) a polymer including a cycloolefin backbone, wherein the content is the component (a) of 15 to 60 parts by weight and the total content of the component (b) and the component (c) is 40 to 85 parts by weight, based on 100 parts by weight of the total content of the component (a), the component (b), and the component (c).

Provided is a curable composition that is soluble in various solvents (organic solvents other than highly toxic organic solvents, for example, cyclohexanone) while maintaining excellent low dielectric properties, wherein a film obtained by curing the curable composition has excellent mechanical properties. A curable composition, comprising: a polyphenylene ether having a functional group including an unsaturated carbon bond, which is obtained from raw material phenols including phenols satisfying at least condition 1 (having a hydrogen atom at an ortho position and a para position), and having a slope calculated by a conformation plot of less than 0.6; and at least one of a compound containing at least one maleimide group in one molecule, a triazine-based compound containing at least one thiol group, and crosslinked polystyrene particles.

Disclosed are a resin composition comprising 20 to 50 mass % of a polyphenylene ether-based resin (a), 0.1 to 9 mass % of a polyphenylene ether-based resin modified with an unsaturated carboxylic acid or acid anhydride thereof (b), 15 to 50 mass % of a homopolystyrene (c), 1 to 25 mass % of one or more selected from the group consisting of a hydrogenated block copolymer (d-1) and a rubber-modified polystyrene (d-2), and 5 to 35 mass % of glass fibers (e) which are surface-treated, a resin composition comprising 20 to 50 mass % of a polyphenylene ether-based resin (a), 15 to 50 mass % of a homopolystyrene (c), 5 to 35 mass % of glass fibers (e), and 0.01 to 1 mass % of compounds (f), a method of producing the same, a molded article, and a mechanical component and housing.

Provided are a polyamide/polyphenylene ether resin composition that has excellent fluidity, heat resistance, and surface impact strength while also having excellent repeated processability and a shaped product that includes this resin composition. The resin composition contains: (a) a polyamide; (b) a polyphenylene ether; (c) a compatibilizer for the (a) polyamide and the (b) polyphenylene ether; and (d) a polyhydric alcohol including at least two hydroxyl groups and having a number-average molecular weight (Mn) of less than 500. The content of the (d) polyhydric alcohol is 0.3 parts by mass to 5 parts by mass relative to 100 parts by mass, in total, of the (a) polyamide and the (b) polyphenylene ether. A ratio of terminal amino group concentration relative to terminal carboxyl group concentration (terminal amino group concentration/terminal carboxyl group concentration) in the (a) polyamide is 0.3 to 0.5. The (a) polyamide forms a continuous phase.