Process for the preparation of fire-retardant expandable...

Details Process for the preparation of fire-retardant expandable... Process for the preparation of fire-retardant expandable...

C - Chemistry, Metallurgy

08

K

403/80

C08K 5/06 (2006.01) C08J 9/18 (2006.01)

Patent

CA 2032899

Fire-retardant expandable vinyl aromatic polymer beads are prepared by an aqueous suspension method whereby a bromophenyl allyl ether fire-retardant agent 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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