公开(公告)号：EP2760972B1

公开(公告)日：2018-06-20

申请号：EP11773590.2

申请日：2011-09-29

Applicant: LANXESS Solutions US Inc.

Inventor： TIMBERLAKE, Larry, D. ,  SIEBECKER, James, D. ,  NARAYAN, Subramaniam

IPC: C09K21/08 ,  C08K5/06

CPC classification number: C09K21/08 ,  C08K5/06 ,  C08K2201/014

Abstract: A halogenated phenyl ether flame retardant is described having the general formula (I): wherein each X is independently C1 or Br, n is an integer of from 0 to 12, and each p is independently an integer of 1 to 4, provided that, when each X is C1, the total amount halogen in the ether is from about 50 to about 65 wt% and when each X is Br, the total amount halogen in the ether is from at least 70 wt % to about 79 wt% and wherein from about 30% to about 80%, for example from about 35% to about 75% of the halogenated ethers are fully halogenated the remainder being partially halogenated. In many embodiments, mixtures of compounds of formula I with different values of n are present. The present flame retardant provides superior mechanical properties when incorporated into a polymer than similar flame retardants which contain a higher amount of fully halogenated species.