| abstract |
Modified thermoplastic polyester compositions include (a) a poly (1,4 butilene terephthalate) or polyester copolymer resin and, optionally, a poly (ethylene terephthalate) resin, (b) a modifier for these compositions which consist of a combination of an arene-diene monoalkenyl block copolymer resin with selective hydraugination and an aromatic polycarbonate, and (c) a mineral filler and, optionally, (b) a flame retardant. The modifier (b) and the mineral filler material (c) provide greater resistance to impact breakage, greater strength and better resistance to thermal distortion of articles molded from these compositions. |