Fire-retardant polystyrenic compositions

Details Fire-retardant polystyrenic compositions Fire-retardant polystyrenic compositions

1979-02-26

1980-10-28

Taylor, Hosea E.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252 81, 260 285A, 260 285B, 260 457R, 260 4575B, 260 458NT, 260 4595G, 521907, C08K 502, C08K 503, C08K 534

Patent

active

042308216

ABSTRACT:
Disclosed is a self-extinguishing polystyrenic composition comprising a polystyrenic resin, a fire-retardant amount of a halogenated organic fire-retardant agent and a benzotriazolic compound having the formula ##STR1## wherein R.sub.1 is H or --CH.sub.3 and R.sub.2 is H or --CH.sub.2 N(R.sub.3).sub.2 wherein R.sub.3 is H, an alkyl radical containing from about 1 to 12 carbon atoms or --CH.sub.2 CH.sub.2 OH, in an amount between about 1 and 50% of the weight of said fire-retardant agent.

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patent: 4024092 (1977-05-01), Sonnenberg
patent: 4033916 (1977-07-01), Whelan, Jr.
patent: 4067930 (1978-01-01), Versnel et al.
patent: 4087399 (1978-05-01), Hamada et al.
patent: 4092281 (1978-05-01), Bertrand

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