Salt-containing vinyl halide resins of improved fire resistance

Details Salt-containing vinyl halide resins of improved fire resistance Salt-containing vinyl halide resins of improved fire resistance

C - Chemistry, Metallurgy

08

L

400/5439

C08L 27/00 (2006.01) C08K 5/13 (2006.01) C08L 27/02 (2006.01)

Patent

CA 1044840

SALT-CONTAINING VINYL HALIDE RESINS OF IMPROVED FIRE RESISTANCE ABSTRACT OF DISCLOSURE Vinyl halide resin compositions having improved fire resistance are formed by the introduction into said compositions of a small amount of a reactive hydroxy group-containing polyvalent metal salt of a phenol-aldehyde resin of the novolac type. The resulting vinyl halide resins evidence increase charring of the surface when exposed to heating by a flame or undergoing combustion, the surface char acting as a barrier to heat transfer from the flame and retarding the flow of volatile gases from the pyrolyzing resin.

210856

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