Crosslinked styrene polymer foam having suppressed ignition...

Details Crosslinked styrene polymer foam having suppressed ignition... Crosslinked styrene polymer foam having suppressed ignition...

C - Chemistry, Metallurgy

08

J

403/67

C08J 9/00 (2006.01) C08L 25/08 (2006.01) C08L 35/06 (2006.01)

Patent

CA 1080898

ABSTRACT OF THE DISCLOSURE A monovinylidene aromatic polymer foam having reduced propensity to ignite is produced by (1) foaming a copolymer of a monovinylidene aromatic monomer and an ethylenically unsaturated carboxylic anhydride wherein a portion of the copolymer contains halogen moiety and (2) subsequently crosslinking the copolymer foam by con- tacting it with a crosslinking agent such as alkylene polyamine. The resultant copolymer foam does not melt or drip upon exposure to flame. 17,722-F

287967

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