Patent ID: 7589281

Claim:
A thermoplastic composition, comprising: 20 to 50 weight percent of a poly(arylene ether); 25 to 57 weight percent of total polyolefin; wherein said total polyolefin consists of polyolefins and the polyolefin content of block copolymers comprising a poly(alkenyl aromatic) block and a polyolefin block; and 3 to 30 weight percent of a flame retardant composition consisting of aluminum tris(diethyl phosphinate); wherein all weight percents are based on the total weight of the thermoplastic composition; wherein the poly(arylene ether) and total polyolefin are present in a weight ratio of 0.55:1 to 1.2:1; and wherein a test sample coated wire exhibits a tensile stress at break of at least 10 megapascals, measured at 23° C. according to UL 1581, Section 470, a tensile elongation at break of at least 100 percent, measured at 23° C. according to UL 1581, Section 470, and a passing flame test rating according to UL 1581, Section 1080, wherein the test sample coated wire consists of an AWG 24 wire having a nominal cross sectional area of 0.205 millimeter 2 , and a tubular covering comprising the thermoplastic composition and having a nominal outer diameter of 2 millimeters.