Patent ID: 7439284

Claim:
A method of making a thermoplastic composition comprising melt mixing a concentrate comprising a first thermoplastic, a second thermoplastic and an additive with a component selected from the group consisting of a third thermoplastic, fire retardant additive, reinforcing agent, electrically conductive filler, non-electrically conductive filler, and combinations of two or more of the foregoing, wherein the first thermoplastic comprises poly(arylene ether), wherein the second thermoplastic and third thermoplastic are selected from the group consisting of poly(alkenyl aromatic) homopolymer resin, rubber modified poly(alkenyl aromatic) homopolymer resin, polyamide, polyolefin and combinations of two or more of the foregoing, wherein the concentrate is solid prior to melt mixing, wherein the concentrate comprises 50 to 99 weight percent poly(arylene ether) based on the total weight of the concentrate, and wherein the composition comprises greater than or equal to 34 weight percent poly(arylene ether), based on the total weight of the composition.