A poly(phenylene ether) composition includes specific amounts of a poly(phenylene ether), a hydrogenated block copolymer of an alkenyl aromatic monomer and a conjugated diene, a polypropylene or a polyethylene, a low molecular weight polybutene, a flame retardant, a liquid ultraviolet absorbing agent, and a poly(alkylene oxide). The composition can be useful as an insulation or jacketing material for wires and cables, where the insulation and jacketing materials including the composition can have reduced surface blooming.

A poly(phenylene ether) composition includes specific amounts of a poly(phenylene ether), a hydrogenated block copolymer of an alkenyl aromatic monomer and a conjugated diene, a polypropylene or a polyethylene, a low molecular weight polybutene, a flame retardant, a liquid ultraviolet absorbing agent, and a poly (alkylene oxide). The composition can be useful as an insulation or jacketing material for wires and cables, where the insulation and jacketing materials including the composition can have reduced surface blooming.

A resin composition that includes a maleimide compound, an alkenyl-substituted nadimide, a silane compound having a styrene skeleton and a hydrolyzable group or a hydroxy group, and an inorganic filler.

The present invention provides: a resin composition for a heat-resistant electric wire, containing from 25 to 60 parts by weight of a polyphenylene ether, from 15 to 42 parts by weight of a polypropylene-based resin, from 8 to 27 parts by weight of a styrene-based elastomer, from 5 to 15 parts by weight of a polyamide, and from 1 to 10 parts by weight of an acid-modified polyolefin, in which the polyamide has a melting point of 201 C. or more; and a heat-resistant electric wire using the composition.

A filling composition is disclosed, the composition comprises (i) between 4 to 20 wt. % of a selectively hydrogenated isoprene-styrene block copolymer having a structure S-EP with at least 40 wt. % polystyrene content, a total diblock apparent molecular weight of at least 160 kg/mole, the polystyrene block S has a true molecular weight in the range of 60 to 110 kg/mole, and the polyisoprene block (EP) has a molecular weight in the range of 80-100 kg/mole, (ii) an oil, and (iii) optional additives. The filling composition is characterized as having a thixotropic ratio of 2-10, a drop point of at least 200 C., and a cone penetration at 25 C. of <500 dmm.

The invention relates to an electric winding body which has improved performance characteristics as a result of being impregnated with a thermoplastic material filled with phase change material. These performance characteristics relate to improved heat dissipation, vibration damping, fixing of the coils, and improved protection against overheating by utilizing the sensitive and latent heat storage properties when the polymer units transition from the semi-crystalline state into the amorphous state.

The invention relates to a cable comprising at least one electrically insulating layer obtained from a polymer composition comprising at least one homophasic propylene polymer, and at least one homophasic ethylene polymer having an elastic modulus greater than 300 MPa, said propylene and ethylene polymers being in specific proportions.

Provided is a dielectric material (1, 2, 3, 4) to solve the problems of low production efficiency and high production cost of the existing dielectric material. The dielectric material (1, 2, 3, 4) is a tube structure. The tube wall of the tube structure is formed from a foam material foamed. The dielectric material further includes metal wires (11, 21, 31, 41). The metal wires (11, 21, 31, 41) are disposed in the longitudinal direction of the tube structure, and are evenly distributed in the tube wall of the tube structure without being in contact with each other. The dielectric material (1, 2, 3, 4) with such a structure has the advantages of simple structure, accurate control of the dielectric constant, light weight per unit volume, easy and efficient production, and stable technical indicators. Further provided is a dielectric material production method.

The present invention relates to a masterbatch to for use in a process of preparing a composite material, the masterbatch comprising a blend of a first amorphous polymer with carbon nanotubes, and at least 5% by weight of carbon nanotubes based on the total weight of the masterbatch, preferably from 5% to 15%, wherein the masterbatch exhibit a high load melt flow index HLMI1 of less than 40 g/10 min determined at 200 C. under a load of 21.6 kg according to ISO1133 and the first amorphous polymer has a melt flow index MFI1 of at least 10 g/10 min determined at 200 C. under a load of 5 kg according to ISO1133H. The invention also relates to the process for preparing such masterbatch and to process of preparing a composite material using said masterbatch.

A composition contains specific amounts of a poly(phenylene ether), a hydrogenated block copolymer of an alkenyl aromatic monomer and a conjugated diene, a flame retardant that includes an organophosphate ester with a melting point of 60 to 150 C., and an ultraviolet absorbing agent. The high-melting organophosphate ester permits reduction of the ultraviolet absorbing agent content, which in turn reduces color shift under storage conditions. The composition is useful as an insulating material and a jacketing material for wire and cable.