| 摘要 |
Modified thermoplastic polyester compositions are provided which comprise (a) a poly(1,4-butylene terephthalate) resin or polyester copolymer and, optionally, a poly(ethylene terephthalate) resin and (b) a modifier therefor comprising a combination of a selectively hydrogenated block copolymer resin of a vinyl aromatic monomer (A) and a conjugated diene (B) of the A-B type, and an aromatic polycarbonate, and, optionally (c) filler and/or reinforcing agent and/or (d) a flame retardant. Modifier (b) provides enhanced resistance to impact fracture, increased strength and improved resistance to heat distortion in articles molded from the compositions.
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