Modified polyester compositions

Details Modified polyester compositions Modified polyester compositions

1979-01-08

1981-06-02

Ziegler, J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457R, 260 457P, 260 4575B, 260 458N, 260 459R, 260 459NP, 525 92, 525 95, 525 96, C08K 316, C08K 340, C08L 6706

Patent

active

042710642

ABSTRACT:
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.

REFERENCES:
patent: 3953394 (1976-04-01), Fox et al.
patent: 4090996 (1978-05-01), Gergen et al.

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