Claims
- 1. A process comprising bringing together a poly(bromoaryl)alkane, a halogenated aromatic solvent and a brominating agent to form a mixture, and exposing the mixture to light so as to form a poly(bromoaryl)bromoalkane.
- 2. A process according to claim 1 wherein the halogenated aromatic solvent is a halogenated benzene.
- 3. A process according to claim 2 wherein the halogenated benzene is chlorobenzene or bromobenzene.
- 4. A process according to claim 1 wherein the brominating agent is elemental bromine.
- 5. A process according to claim 1 wherein the aryl groups of the poly(bromoaryl)alkane are perbrominated.
- 6. A process according to claim 1 wherein the poly(bromoaryl)alkane is decabromodiphenylethane or decabromodiphenylmethane.
- 7. A process according to claim 1 wherein the poly(bromoaryl)bromoalkane is undecabromodiphenylmethane or dodecabromodiphenylethane.
- 8. A process according to any of claims 1-4 wherein the poly(bromoaryl)alkane is a poly(bromophenyl)alkane, and the poly(bromoaryl)bromoalkane is a poly(bromophenyl)bromoalkane.
- 9. A process according to claim 8 wherein the poly(bromoaryl)alkane is decabromodiphenylethane and the poly(bromophenyl)bromoalkane is undecabromodiphenylethane, dodecabromodiphenylethane, or both.
- 10. A process according to claim 1 further comprising mixing an amount of the poly(bromoaryl)bromoalkane with a poly(bromoaryl)alkane to form an additive mixture, the amount of the poly(bromoaryl)bromoalkane being greater than 25 wt %, based on the total weight of the additive mixture.
- 11. A process according to claim 10 wherein the halogenated aromatic solvent is a halogenated benzene.
- 12. A process according to claim 11 wherein the halogenated benzene is chlorobenzene or bromobenzene.
- 13. A process according to claim 10 wherein the brominating agent is elemental bromine.
- 14. A process according to claim 10 wherein the aryl groups of the poly(bromoaryl)alkane are perbrominated.
- 15. A process according to claim 10 wherein the poly(bromoaryl)alkane is decabromodiphenylethane or decabromodiphenylmethane.
- 16. A process according to claim 10 wherein the poly(bromoaryl)bromoalkane is dodecabromodiphenylethane.
- 17. A process according to any of claims 10-13 wherein the poly(bromoaryl)alkane is a poly(bromophenyl)alkane, and the poly(bromoaryl)bromoalkane is a poly(bromophenyl)bromoalkane.
- 18. A process according to claim 17 wherein the poly(bromoaryl)alkane is decabromodiphenylethane and the poly(bromophenyl)bromoalkane is dodecabromodiphenylethane.
- 19. An article of manufacture comprised of a flammable macromolecular material and a flame retardant amount of an additive mixture comprising (i) a poly(bromophenyl)alkane having in the molecule in the range of 13 to 60 carbon atoms and in the range of two to four phenyl groups wherein the phenyl groups each have two or more bromine substituents, and (ii) a poly(bromophenyl)bromoalkane having in the molecule in the range of 13 to 60 carbon atoms and in the range of two to four phenyl groups, said poly(bromophenyl)bromoalkane being in an amount which is greater than 25 wt %, based on the total weight of the additive mixture.
- 20. An article of manufacture according to claim 19 wherein the poly(bromophenyl)alkane of (i) is decabromodiphenylethane, and wherein the poly(bromophenyl)bromoalkane of (ii) is dodecabromodiphenylethane.
- 21. An article of manufacture according to claim 19 wherein the poly(bromophenyl)alkane of (i) is decabromodiphenylethane, and wherein the poly(bromophenyl)bromoalkane of (ii) is undecabromodiphenylethane.
- 22. A process according to claim 19 wherein the phenyl groups of the poly(bromophenyl)alkane of (i) are perbrominated.
- 23. A process according to claim 19 wherein the poly(bromophenyl)alkane is decabromodiphenylethane or decabromodiphenylmethane.
- 24. A process according to claim 19 wherein the poly(bromophenyl)bromoalkane is undecabromodiphenylmethane or dodecabromodiphenylethane.
REFERENCE TO RELATED APPLICATIONS
[0001] This application is a division of copending U.S. application Ser. No. 10/213,113, filed Aug. 5, 2002, which claims the benefit of the filing date priority of U.S. Provisional Patent Appl. No. 60/309,810, filed on Aug. 3, 2001.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60309810 |
Aug 2001 |
US |
Divisions (1)
|
Number |
Date |
Country |
Parent |
10213113 |
Aug 2002 |
US |
Child |
10827772 |
Apr 2004 |
US |