Flame-retardant polyester resin compositions

Details Flame-retardant polyester resin compositions Flame-retardant polyester resin compositions

1991-11-25

1993-03-16

Michl, Paul R.

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...

524411, 524464, 524546, C08K

Patent

active

051944812

ABSTRACT:
Flame-retardant thermoplastic polyester resin compositions are formed by melt-blending a polyester base resin, and a flame-retardant package which includes (i) an organohalogen flame retardant, and (ii) a low-sulfate containing antimony oxide (i.e., having a sulfate content of 0.05% by weight or less) as an auxiliary flame retardant. The compositions of this invention may optionally include a drip-resistant effective amount of a polytetrafluoroethylene resin. The low sulfate-containing antimony oxide is preferably antimony trioxide.

REFERENCES:
patent: 4344878 (1982-08-01), Dolce
patent: 4464501 (1984-08-01), Taubert et al.

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