Intumescent fire retardant compositions

Details Intumescent fire retardant compositions Intumescent fire retardant compositions

C - Chemistry, Metallurgy

08

K

403/9

C08K 3/32 (2006.01) C08K 5/17 (2006.01) C08K 5/49 (2006.01) C08K 11/00 (2006.01) C08L 101/00 (2006.01)

Patent

CA 1203349

ABSTRACT OF THE DISCLOSURE The present invention relates to intumescent fire retardant compositions for polymers such as olefin polymers, polyester resins, polyurethane resins etc. According to the invention, the intumescent fire retardant compositions contain a thermolized product obtained from a system comprising P2O5 or a P2O5-precursor together with triethanolamine. The ratio between the constituents is between 0.5 to 2.0 parts by weight P2O5 to 1 part triethanolamine. The intumescent fire retardant compositions according to the present invention obviate the need for using of halogen- containing fire retardants which produce acid vapors during decomposition.

419868

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