Flameproof polymeric compositions

Details Flameproof polymeric compositions Flameproof polymeric compositions

C - Chemistry, Metallurgy

08

K

403/9

C08K 5/34 (2006.01) C08K 5/3462 (2006.01) C08K 13/02 (2006.01) C08L 23/02 (2006.01) C08L 25/04 (2006.01) C08L 55/02 (2006.01)

Patent

CA 1229197

ABSTRACT OF THE DISCLOSURE Polymeric compositions endowed with high flame- self-extinguishing properties, comprising a polymer selected from amongst olefinic polymers, polystyrene, polybutylene terephthalate, SAN and ABS copolymers, and also, for 100 parts of composition: (a) 20-50 parts of piperazine acid pyrophosphate; (b) 0-3 parts of at least one compound selected from TiO2, SiO2, silicic acid, as a powder having a particle size 0.1 micron; (c) 0-35 parts of at least one compound selected from ammonium polyphosphate, melamine, melamine phosphate and pyrophosphate, polycarboxypiperazine, ethylene urea/formaldehyde condensates, as a substitute for an equal weight of compound (a), and in such amount that the composition still contains at least 5 parts of such compound (a).

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