Particulate agent for impeding the combustibility of...

Details Particulate agent for impeding the combustibility of... Particulate agent for impeding the combustibility of...

C - Chemistry, Metallurgy

08

J

403/19, 400/7352

C08J 9/00 (2006.01) C08K 9/10 (2006.01) C08L 75/04 (2006.01) C09K 21/12 (2006.01) C09K 21/14 (2006.01)

Patent

CA 1154194

ABSTRACT OF THE DISCLOSURE: The invention relates to a particulate agent based on free-flowing pulverulent ammonium polyphosphates of the general formula H(n-m) ? 2(NH4)mPnO3n ? 1 in which n is an integer having an average value of from approximately 20 to 800 and the ratio of m to n is approxi- mately 1, for impeding the combustibility of combustible materials. The agent is comprised of a) approximately 75 to 99 % by weight of ammonium polyphosphate, and b) approximately 1 to 25 % by weight of a hardened melamine and formaldehyde encasing the indi- vidual ammonium polyphosphate particles.

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