Flame retardant additive composition useful with polyolefins

Details Flame retardant additive composition useful with polyolefins Flame retardant additive composition useful with polyolefins

1992-04-13

1993-06-01

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...

525288, 524567, 524410, 524411, C08K 513, C08K 506

Patent

active

052160599

ABSTRACT:
A flame retarding additive composition, useful in thermoplastic polyolefins, is disclosed comprising a mixture of a halogenated bisphenol derivative and the copolymer of a halogenated vinyl aromatic grafted onto polyolefin. The preferred bisphenol derivative is tetrabromobisphenol A bis(dibromopropyl ether), and the preferred graft copolymer comprises bromostyrene grafted onto isotactic or syndiotactic polypropylene. Also disclosed are the flame retarded, thermoplastic polyolefins prepared using the foregoing additive compositions.

REFERENCES:
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patent: 3331797 (1967-07-01), Kopetz et al.
patent: 3883481 (1975-05-01), Kopetz et al.
patent: 4532287 (1985-07-01), Bill et al.
patent: 4780496 (1988-10-01), Termine et al.
patent: 4966946 (1990-10-01), Favstritsky et al.
patent: 5041484 (1991-08-01), Atwell et al.
patent: 5077337 (1991-12-01), Atwell et al.

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