Flame retardant tetrabromophthalic acid esters useful in synthetic resins
AssigneeChemische Fabrik Kalk GmbH
InventorsHerbert Jenkner, Robert Strang
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Abstract
Tetrabromophthalic acid esters of pentabromobenzyl alcohol with a softening temperature of 270.degree.-280.degree. C. and a bromine content of about 75% by weight and of a tetrakis(bromomethyl)-o-xylylene glycol with a softening temperature of 220.degree.-230.degree. C. and a bromine content of about 67% by weight are good flame retardants for synthetic resins.
Claims7
Tetrabromophthalic acid esters of pentabromobenzyl alcohol with a softening temperature of 270.degree.-280.degree. C. and a bromine content of 73-77% by weight.
Tetrabromophthalic acid esters of tetrakis(bromomethyl)-o-xylylene glycol with a softening temperature of 220.degree.-230.degree. C. and a bromine content of 62-68% by weight.
Dependencies are inferred from the claim text.