Polypentabromostyrene, process for the production and use

Details Polypentabromostyrene, process for the production and use Polypentabromostyrene, process for the production and use

1981-07-07

1983-07-19

Wong, Jr., Harry

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525169, 525209, 526 75, 526293, C08F11204

Patent

active

043944841

ABSTRACT:
Polypentabromostyrene with a bromine content of 76% to 80%, which is plastic at a temperature of 280.degree. C. and is thermally decomposed at a temperature of about 400.degree. C., can be produced by reacting pentabromophenylethyl bromide with an alkali metal hydroxide or carbonate in an alcoholic solvent and subsequently by catalytically initiating polymerization. The polypentabromostyrene is useful as a flame retardant for thermoplastic synthetic resins.

REFERENCES:
patent: 3507816 (1970-04-01), Sims et al.
patent: 3534012 (1970-10-01), Dennis
patent: 3959398 (1976-05-01), Jalics
patent: 4279808 (1981-07-01), Hornbaker et al.

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