Polyethylene terephthalate molding compositions

Details Polyethylene terephthalate molding compositions Polyethylene terephthalate molding compositions

1990-04-27

1992-02-25

Morgan, Kriellion S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524409, 524410, 524513, C08K 714

Patent

active

050914570

ABSTRACT:
Glass fiber reinforced polyethylene terephthalate molding resin compounds with low warpage and increased spiral flow which crystallize rapidly after being injection molded and which have engineering resin performance characteristics are provided. In addition to polyethylene terephthalate and glass fibers, the compounds contain glass flakes, an aliphatic polyester, an ionic hydrocarbon polymer, an antioxidant, and, optionally, polyethylene and/or a polymeric epoxy compound. Sodium stearate and/or polyester amide resins may also be added to improve surface finish. The compounds can be flame retarded with a brominated polystyrene and an antimonate without substantial loss of, or change in, properties.

REFERENCES:
patent: 4141882 (1979-02-01), Kodama et al.
patent: 4222928 (1980-09-01), Kawamura et al.
patent: 4244859 (1981-01-01), Sugie et al.
patent: 4506043 (1985-03-01), Ogawa et al.
patent: 4983660 (1991-01-01), Yoshida et al.

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