Abstract: An improved seating system that includes a blow molded seat back assembly that is fabricated to include a seat back comprising a double walled design having a foreword (14) and a rearward (16) wall wherein there is at least one or more sections comprising a single wall (213). Further, the blow molded seat back may include an integrated reinforcement structure.

Abstract: The present invention relates to carbonate blend compositions demonstrating improved environmental stress crack resistance in combination with an excellent blend of impact, thermal, and physical properties. Said carbonate blend composition comprises a polycarbonate, a polyester, and a silicon-containing graft (co)polymer having a core-shell morphology, comprising a shell that contains (co)polymerized alkyl(meth)acrylate and glycidyl methacrylate grafted to a composite rubber core that contains polyorganosiloxane and poly(meth)alkyl acrylate components and methods to make said compositions.