Modified polyester compositions

Details Modified polyester compositions Modified polyester compositions

1979-02-02

1981-07-28

Ziegler, J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

525 64, 525 67, 525 68, 525437, 525439, C08L 5104, C08L 6700

Patent

active

042809487

ABSTRACT:
Modified thermoplastic polyester compositions are provided which comprise (a) a block poly(1,4-butylene terephthalate) ester copolymer or blend thereof with a linear polyester and (b) a modifier therefor comprising a combination of an acrylic or methacrylic grafted polymer of a conjugated diene, alone or in combination with a vinyl aromatic and an aromatic polycarbonate. The compositions can include (c) reinforcing glass fibers 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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