Fire retardant concentrate

Details Fire retardant concentrate Fire retardant concentrate

1980-12-31

1985-01-29

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...

C08K 506

Patent

active

044966814

ABSTRACT:
Pellets of a concentrated composition suitable for blending with pellets of styrene-maleic anhydride resins in an extruder are prepared by dispersing an ether having two brominated phenyl groups and a lesser amount of antimony trioxide in a radial block copolymer of about 50% to about 80% vinyl aromatic compound and about 20 to 50% alkadiene, there being from about 10 to about 25% antimony trioxide, from about 30 to about 45% brominated phenyl ether having two brominated phenyl groups and from about 45% to about 55% radial block copolymer, said concentrated composition containing from about 0.05% to about 5% modifiers comprising an antioxidant phenol having sterically hindering alkyl substituents.

REFERENCES:
patent: 3796772 (1974-03-01), Luce
patent: 3997505 (1976-12-01), Albright
patent: 4032508 (1977-01-01), Anderson
patent: 4059545 (1977-11-01), Corbett et al.
patent: 4097550 (1978-06-01), Haaf et al.
patent: 4136135 (1979-01-01), Lee
patent: 4191685 (1980-03-01), Haaf et al.

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