Flame retardant composition for use in styrenics

1. A method for flame-retarding styrenic resins and foamed styrenic resins comprising incorporating an effective amount of at least one flame retardant compound comprising both aliphatic and aromatic bromine and has a 5% weight loss based on TGA analysis at between about 218° C. and 263° C., wherein the at least one flame retardant compound comprises a compound selected from the group consisting of

2. The method for flame-retarding styrenic resins and foamed styrenic resins according to claim 1 wherein the at least one flame retardant compound also comprises at least one additional flame retardant compound comprising both aliphatic and aromatic bromine and has a 5% weight loss based on TGA analysis at between about 218° C. and 263° C.

3. The method for flame-retarding styrenic resins and foamed styrenic resins according to claim 2 wherein at least one of the additional flame retardant compound comprises a compound selected from the group consisting of 1,1′-(1,2-dibromo-1,2-ethanediyl)bis-tribromobenzene, bis-(1-bromoethyl)bromobenzene, bis-(1-bromoethyl)dibromobenzene, bis-(1-bromoethyl)tribromobenzene, bis-(1-bromoethyl)tetrabromobenzene, 9,10-dibromo-9,10-dihydro octabromoanthracene, 9,10-dibromo-9,10-dihydro septabromoanthracene, 9,10-dibromo-9,10-dihydro hexabromoanthracene, 9,10-dibromo-9,10-dihydro pentabromoanthracene, 4-bromomethyl tetrabromobenzyl 2,4,6-tribromophenyl ether, and 4-bromomethyl benzyl 2,4,6-tribromophenyl ether.

4. The method for flame-retarding styrenic resins and foamed styrenic resins according to claim 3 wherein at least one of the additional flame retardant compound comprises 1,1′-(1,2-dibromo-1,2-ethanediyl)bis-tribromobenzene prepared in such a away that there are eight major components and several minor components that average to an aromatic bromine content of 5.5-6 bromine atoms and an average amount of 1.7-1.9 aliphatic bromine atoms.

5. An article of manufacture comprising a styrenic resin composition or foamed styrenic resin composition wherein said composition comprises an effective amount of at least one flame retardant compound comprising both aliphatic and aromatic bromine and has a 5% weight loss based on TGA analysis at between about 218° C. and 263° C., wherein the at least one flame retardant compound comprises a compound selected from the group consisting of

6. The article of manufacture comprising a styrenic resin composition or foamed styrenic resin composition according to claim 5 wherein the at least one flame retardant compound also comprises at least one additional flame retardant compound comprising both aliphatic and aromatic bromine and has a 5% weight loss based on TGA analysis at between about 218° C. and 263° C.

7. The article of manufacture comprising a styrenic resin composition or foamed styrenic resin composition according to claim 6 wherein at least one of the additional flame retardant compound comprises a compound selected from the group consisting of 1,1′-(1,2-dibromo-1,2-ethanediyl)bis-tribromobenzene, bis-(1-bromoethyl)bromobenzene, bis-(1-bromoethyl)dibromobenzene, bis-(1-bromoethyl)tribromobenzene, bis-(1-bromoethyl)tetrabromobenzene, 9,10-dibromo-9,10-dihydro octabromoanthracene, 9,10-dibromo-9,10-dihydro septabromoanthracene, 9,10-dibromo-9,10-dihydro hexabromoanthracene, 9,10-dibromo-9,10-dihydro pentabromoanthracene, 4-bromomethyl tetrabromobenzyl 2,4,6-tribromophenyl ether, and 4-bromomethyl benzyl 2,4,6-tribromophenyl ether.

8. The article of manufacture comprising a styrenic resin composition or foamed styrenic resin composition according to claim 7 wherein at least one of the additional flame retardant compound comprises 1,1′-(1,2-dibromo-1,2-ethanediyl)bis-tribromobenzene prepared in such a away that there are eight major components and several minor components that average to an aromatic bromine content of 5.5-6 bromine atoms and an average amount of 1.7-1.9 aliphatic bromine atoms.