Melamine grafted fire and drip resistant polyamide...

Details Melamine grafted fire and drip resistant polyamide... Melamine grafted fire and drip resistant polyamide...

C - Chemistry, Metallurgy

08

F

C08F 267/10 (2006.01) C08G 69/00 (2006.01) C08G 69/48 (2006.01) C08K 5/3492 (2006.01)

Patent

CA 2041881

MELAMINE GRAFTED FIRE AND DRIP RESISTANT POLYAMIDE THERMOPLASTICS ABSTRACT OF THE DISCLOSURE A fire retardant graft polymer having resistance to dripping and puddling on exposure to fire and the method of making such graft polymer comprising of from about 10%-35% by weight of melamine and a thermoplastic polyamide. The graft polymer is formed under conditions of controlled incipient depolymerization for the polyamide. The melting point of the polyamide is not reduced more than 30°C during the making of the fire retardant graft polymer. The physi- cal properties of the thermoplastic are not degraded even though a high concentration of melamine is contained in the final graft polymer. An additional organic compound which does not inhibit the formation of the melamine-polyamide graft can also be grafted to the polyamide.

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