Flame retardant composition for flammable plastic materials consisting of particulate 2,4,6- tris(2,4,6-tribromophenoxy)-1,3,5-triazine containing a water insoluble polyvalent metal compound and process for producing same

摘要

A flame retardant composition for flammable plastic materials and a method for producing the same are disclosed. The flame retardant composition comprises 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5- triazine that contains 1 to 1000ppm of a metal species of a water-insoluble polyvalent metal compound selected from the group consisting of oxide, hydroxide, carbonate, phosphate, sulfate and silicate present in the particles of 2,4,6-tris(2,4,6-tribromophenoxy)- 1,3,5-triazine. The flame retardant composition is produced by reacting an alkali metal salt of 2,4,6- tribromophenol and cyanuric chloride in the presence of said water-insoluble polyvalent metal compound.