Conductive polyphenylene ether-polyamide composition, method of manufacture thereof, and article derived therefrom

A conductive composition consisting essentially of:

• about 30 to about 45 weight percent of a polyphenylene ether copolymer comprising about 75 to about 90 weight percent of 2,6-dimethyl-1,4-phenylene ether units and about 10 to about 25 weight percent of 2,3,6-trimethyl-1,4-phenylene ether units, based on the total weight of the polyphenylene ether copolymer;
• about 30 to about 65 weight percent of a polyamide selected from the group consisting of poly(hexamethylene adipamide), poly(pentamethylene carboximide), and mixtures thereof, based on the total weight of the composition;
• about 5 to about 20 weight percent of an impact modifier consisting of a styrene-(ethylene-butylene)-styrene triblock copolymer and a styrene-(ethylene-propylene) diblock copolymer, based on the total weight of the composition;
• and
• about 0.5 to about 5 weight percent of an electrically conductive filler selected from the group comprising a conductive carbon black, vapor grown carbon fibers, and mixtures thereof, based on the total weight of the composition.

A conductive composition consisting essentially of:

• about 32 to about 38 weight percent of a polyphenylene ether copolymer comprising about 75 to about 90 weight percent of 2,6-dimethyl-1,4-phenylene ether units and about 10 to about 25 weight percent of 2,3,6-trimethyl-1,4-phenylene ether units, based on the total weight of the polyphenylene ether;
• about 35 to about 40 weight percent of poly(hexamethylene adipamide), based on the total weight of the composition;
• about 8 to about 12 weight percent of poly(pentamethylene carboximide), based on the total weight of the composition;
• about 5 to about 10 weight percent of a styrene-(ethylene-butadiene)-styrene triblock copolymer, based on the total weight of the composition;
• about 5 to about 10 weight percent of a styrene-(ethylene-propylene) diblock copolymer, based on the total weight of the composition;
• about 1.0 to about 2.5 weight percent of a conductive carbon black, based on the total weight of the composition.

A conductive thermoplastic composition consisting essentially of the reaction product of:

• about 20 to about 60 weight percent of a polyphenylene ether copolymer comprising about 75 to about 90 weight percent of 2,6-dimethyl-1,4-phenylene ether units and about 10 to about 25 weight percent of 2,3,6-trimethyl-1,4-phenylene ether units based on the total weight of the polphenylene ether copolymer;
• about 30 to about 65 weight percent of a polyamide, based on the total weight of the composition;
• about 0.1 to about 5 weight percent of a compatibilizing agent, based on the total weight of the composition;
• about 1 to about 30 weight percent, based on the total weight of the composition, of an impact modifier selected from the group consisting of a styrene-(ethylene-butylene)-styrene triblock copolymer, a styrene-(ethylene-propylene) diblock copolymer, and a combination of a styrene-(ethylene-butylene)-styrene triblock copolymer and a styrene-(ethylene-propylene) diblock copolymer;
• and
• about 0.025 to about 40 weight percent of an electrically conductive filler, based on the total weight of the composition.

A method for preparing a conductive thermoplastic composition, consisting essentially of:

• melt blending about 20 to about 60 weight percent of a polyphenylene ether copolymer comprising about 75 to about 90 weight percent of 2,6-dimethyl- 1,4-phenylene ether units and about 10 to about 25 weight percent of 2,3,6-trimethyl-1,4-phenylene ether units, based on the total weight of the polyphenylene ether copolymer,
• about 30 to about 65 weight percent of a polyamide, based on the total weight of the composition,
• about 5 to about 20 weight percent, based on the total weight of the composition, of an impact modifier selected from the group consisting of a styrene-(ethylene-butylene)-styrene triblock copolymer, a styrene-(ethylene-propylene) diblock copolymer, and a combination of a styrene-(ethylene-butylene)-styrene triblock copolymer and a styrene-(ethylene-propylene) diblock copolymer;
• about 0.025 to about 40 weight percent of an electrically conductive filler, based on the total weight of the composition,
• and a compatibilizing agent, based on the total weight of the composition.

A conductive thermoplastic composition consisting essentially of:

• about 20 to about 60 weight percent of a polyphenylene ether copolymer comprising about 75 to about 90 weight percent of 2,6-dimethyl-l,4-phenylene ether units and about 10 to about 25 weight percent of 2,3,6-trimethyl-1,4-phenylene ether units, based on the total weight of the polyphenylene ether;
• about 30 to about 65 weight percent of a polyamide, based on the total weight of the composition;
• about 1 about 30 weight percent of an impact modifier consisting of a styrene-(ethylene-butylene)-styrene triblock copolymer and a styrene-(ethylene-propylene) diblock copolymer, based on the total weight of the composition;
• about 0.025 to about 40 weight percent of an electrically conductive filler, based on the total weight of the composition;
• and
• a product of a reaction of polyphenylene ether, polyamide and a compatibilizing agent.