Flame retardant polyethylene terephthalate

Details Flame retardant polyethylene terephthalate Flame retardant polyethylene terephthalate

1986-12-15

1987-11-24

Hoke, Veronica P.

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...

523351, 524411, 525166, C08K 503, C08K 322

Patent

active

047089806

ABSTRACT:
If antimony oxide is added to a blend of polyethylene terephthalate/alkali metal organic carboxylate in the form of a concentrate in a polyamide, the destabilizing effect of the antimony oxide on the blend is minimized. This greatly improves the thermal stability of the polyethylene terephthalate blend during compounding and subsequent melt processing operations, as compared with similar compositions where the antimony oxide is added in the form of a concentrate with another organic polymer, viz., polyethylene, or is added neat.

REFERENCES:
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patent: 4254242 (1981-03-01), Kyo
patent: 4268432 (1981-05-01), Maslen et al.
patent: 4278769 (1981-07-01), Gebauer et al.
patent: 4325865 (1982-04-01), Baer
patent: 4339556 (1982-07-01), Baer
patent: 4429067 (1984-01-01), Barenberg
patent: 4496681 (1985-01-01), Lordi
patent: 4524191 (1985-06-01), Nakamura et al.
patent: 4525513 (1985-06-01), Hochberg et al.

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