Patent ID: 7847032

Claim:
A composition, comprising: 5 to 55 weight percent of a poly(arylene ether)-polysiloxane block copolymer reaction product comprising a poly(arylene ether) homopolymer, and a poly(arylene ether)-polysiloxane block copolymer comprising a poly(arylene ether) block, and a polysiloxane block comprising, on average, 35 to 80 siloxane repeating units; wherein the poly(arylene ether)-polysiloxane block copolymer reaction product comprises 1 to 8 weight percent siloxane repeating units and 92 to 99 weight percent arylene ether repeating units; wherein the poly(arylene ether)-polysiloxane block copolymer reaction product is the product of a process comprising oxidatively copolymerizing a monomer mixture comprising a monohydric phenol and a hydroxyaryl-terminated polysiloxane; and wherein the poly(arylene ether)-polysiloxane block copolymer reaction product has a weight average molecular weight of at least 30,000 atomic mass units; 10 to 55 weight percent of a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene; and 2 to 25 weight percent of a flame retardant; wherein all weight percents are based on the total weight of the composition.