FLAME RETARDANT POLYOLEFIN COMPOSITION FOR SHIPPING PALLETS

摘要

There is provided herein a flame retarded polyolefin composition comprising a thermoplastic polyolefin polymer, an inorganic flame retardant and a synergist comprising a metal phosphonate represented by the formula:;;There is also provided a method for making a flame retarded polyolefin composition comprising contacting at least one thermoplastic polyolefin polymer with at least one inorganic flame retardant and at least one metal phosphonate and heating the mixture of thermoplastic polyolefin polymer, at least one inorganic flame retardant and at least one metal phosphonate above the melting temperature of the thermoplastic polyolefin polymer.

主权项

1. A flame retarded polyolefin composition comprising a thermoplastic polyolefin polymer, an inorganic flame retardant and a synergist comprising a metal phosphonate represented by the general formula (I):where Me is a metal, n is equal to the valency of the metal and is in the range of from 1 to 4, R1 is a linear or branched alkyl of up to about 12 carbon atoms, R2 is a linear or branched alkyl of up to about 12 carbon atoms, or a substituted aryl or an unsubstituted aryl of the general formula (II):where R3 is hydrogen, or a branched or linear alkyl of up to about 4 carbon atoms, or NH2 or CN or NO2, wherein the inorganic flame retardant is present in an amount of from about 5 weight percent to about 40 weight percent.