Patent ID: 8362127
Filing Date: 2013-01-29
Classification: C07C,C08K

Abstract:
1. A flame retardant polymer composition comprising: (a) a thermoplastic or thermoset polymer and (b) a halogenated non-polymeric phenyl ether flame retardant comprising halogenated non-polymeric phenyl ethers of general formula (I): wherein each X is independently CI or Br, n is an integer of 0, 1, 2, 3, 4, 5, or 6 or more, each m is independently an integer of 1 to 5 and each p is independently an integer of 1 to 4, wherein the flame retardant comprises, based on the total weight of halogenated non-polymeric phenyl ethers of formula (I): from about 30 to about 50% 3-ring halogenated phenyl ethers, from about 30 to about 60% 4-ring halogenated phenyl ethers, from about 1 to about 15% 5-ring halogenated phenyl ethers, and less than 15% total of halogenated phenyl ethers containing 2-, 6-, 7-, 8- or a higher number of phenyl rings, provided that, when each X is CI, the total amount halogen in the flame retardant is from about 50 wt % to about 65 wt % and when each X is Br, the total amount of halogen in the flame retardant is from about 70 wt % to about 79 wt %, and wherein from about 30% to about 80% of the halogenated non-polymeric phenyl ethers of formula (I) present in the composition are fully halogenated, and from about 70% to about 20% of all halogenated non-polymeric phenyl ethers are partially halogenated.