Intumescent flame-retardant coating compositions

Details Intumescent flame-retardant coating compositions Intumescent flame-retardant coating compositions

C - Chemistry, Metallurgy

09

D

403/9

C09D 5/18 (2006.01) C08K 3/00 (2006.01) C09K 21/04 (2006.01)

Patent

CA 1098250

INTUMESCENT FLAME-RETARDANT COATING COMPOSITIONS ABSTRACT OF THE DISCLOSURE: Intumescent flame-retardant coating composition consisting substantially of a film-forming agent, an ammonium poly- phosphate, one or more substances which are carbonizable under the action of heat, a dispersant, and optionally a filler. The coating composition additionally contains an ammonium polyphosphate activator weighing 0.5 to 50 % of the weight of ammonium polyphosphate. The activator is con- stituted by at least one salt which contains water of cry- stallization which is liberated upon the composition being heated to about 35°C.

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