Crosslinked styrene polymer foam having suppressed ignition prop

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

1975-12-22

1977-11-22

Levin, Stanford M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25R, 260 457R, 260 457P, 260 47UA, 526 15, 526 46, 526 49, 526 50, 526 54, 526272, C08J 914, C08J 936

Patent

active

040595455

ABSTRACT:
A monovinylidene aromatic polymer foam having reduced propensity to ignite is produced by (1) foaming a copolymer of 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 contacting it with a crosslinking agent such as alkylene polyamine. The resultant copolymer foam does not melt or drip upon exposure to flame.

REFERENCES:
patent: 3039977 (1962-06-01), Ingram
patent: 3245933 (1966-04-01), Muskat
patent: 3267070 (1966-08-01), Tousignant et al.
patent: 3328367 (1967-06-01), Rees

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