Abstract: 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.

Abstract: 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.

Abstract: A flame retardant thermoplastic composition that includes a polycarbonate or polycarbonate blend resin, a non-brominated, non-chlorinated flame retardant package, a carbon-containing synergist, such as carbon black and an optional reinforcing filler. The composition provides high impact resistance, improved flame retardant characteristics, and/or good processing during injection molding (i.e. mold-ability), while complying with regulations that restrict the use of halogenated materials. These compositions may be used, for example, to injection-mold big or complex parts that are used in objects that are beneficially flame-resistant and/or do not break when an accidental impact occurs during usage or transportation.