Process for the preparation of expandable vinyl aromatic...

Details Process for the preparation of expandable vinyl aromatic... Process for the preparation of expandable vinyl aromatic...

C - Chemistry, Metallurgy

08

J

403/74

C08J 9/16 (2006.01) C08J 9/18 (2006.01) C08K 5/02 (2006.01)

Patent

CA 2033391

Fire-retardant expandable vinyl aromatic polymer beads are prepared by an aqueous suspension method whereby micronized hexabromocyclododecane and a volatile aliphatic hydrocarbon foaming agent are incorporated into particles of a thermoplastic such as polystyrene. The beads are useful in the preparation of molded foam articles having excellent resistance to flame.

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