Claims
- 1. A white product, predominantly consisting of a bis-imide selected from the group consisting of N,N'-ethylene-bis-(tetrabromophthalimide), N,N'-bis-(tetrabromophthalimide) or mixtures thereof, having an acid number of about 1.0 or less and a bromine content within the range of from about 63% to about 69%.
- 2. The white product of claim 1 wherein said bis-imide is N,N'-ethylene-bis-tetrabromophthalimide.
- 3. The white product of claim 2 wherein said acid number is within the range of from about 0.15 to about 1.0 and said bromine content is within the range of from about 65% to about 67%.
- 4. A white product, predominantly consisting of a bis-imide selected from the group consisting of N,N'-ethylene-bis-(tetrabromophthalimide), N,N'-bis-(tetrabromophthalimide) or mixtures thereof produced by bromination N,N'-bis-(phthalimide) or N,N'-bis-(phthalimide), as the case may be, with a brominating agent in the presence of oleum, which selected white product has after oven curing, an acid number of about 1.0 or less and a bromine content within the range of from about 63% to about 69%.
- 5. The white product of claim 4 wherein said bis-imide is N,N'-ethylene-bis-(tetrabromophthalimide).
- 6. The white product of claim 5 wherein said acid number is within the range of from about 0.15 to about 1.0 and said bromine content is within the range of from about 65% to about 67%.
- 7. A composition comprising a macromolecular flammable material and a bis-imide selected from the group consisting of white N,N'-ethylene-bis-)tetrabromophthalimide), and white N,N'-bis-tetrabromophthalimide) which has an acid number of about 1.0 or less and a bromine content within the range of from about 63% to about 69%.
- 8. The composition of claim 7 wherein said macromolecular material is a polymer.
- 9. The composition of claim 8 wherein said polymer is selected from the group consisting of polyolefins, polystyrenes, and polyesters.
- 10. The composition of claim 9 wherein the polymer is selected from the group consisting of cross-linked polyethylene, high impact polystyrene and poly(butyleneterephthalate).
- 11. The composition of claim 8 wherein said bis-imide is N,N'-ethylene-bis-(tetrabromophthalimide).
- 12. The composition of claim 9 wherein said bis-imide is N,N'-ethylene-bis-(tetrabromophthalimide).
- 13. The composition of claim 10 wherein said bis-imide is N,N'-ethylene-bis-(tetrabromophthalimide).
- 14. A molded or extruded article formed from the composition of claim 8.
- 15. A molded or extruded article formed from the composition of claim 9.
- 16. A molded or extruded article formed from the composition of claim 10.
- 17. A composition comprising a macromolecular flammable material and a bis-imide selected from the group consisting of white N,N'-ethylene-bis-(tetrabromophthalimide), and white N,N'-bis-(tetrabromophthalimide) produced by brominating N,N'-ethylene-bis-(phthalimide) or N,N'-bis-(phthalimide), as the case may be, with a brominating agent in the presence of oleum, which selected bis-imide, has after oven curing, an acid number of about 1.0 or less and a bromine content within the range of from about 63% to about 69%.
- 18. The composition of claim 17 wherein said macromolecular material is a polymer.
- 19. The composition of claim 18 wherein said polymer is selected from the group consisting of polyolefins, polystyrenes, and polyesters.
- 20. The composition of claim 18 wherein the polymer is selected from the group consisting of cross-linked polyethylene, high impact polystyrene and poly(butyleneterephthalate).
- 21. The composition of claim 18 wherein said bis-imide is N,N'-ethylene-bis-(tetrabromophthalimide).
- 22. The composition of claim 19 wherein said bis-imide is N,N'-ethylene-bis-(tetrabromophthalimide).
- 23. The composition of claim 20 wherein said bis-imide is N,N'-ethylene-bis-(tetrabromophthalimide).
- 24. A molded or extruded article formed from the composition of claim 18.
- 25. A molded or extruded article formed from the composition of claim 19.
- 26. A molded or extruded article formed from the composition of claim 20.
Parent Case Info
This application is a division of application Ser. No. 150,753, filed Feb. 1, 1988, now U.S. Pat. No. 4,871,863.
US Referenced Citations (7)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0023420 |
Oct 1983 |
EPX |
2926638 |
Jan 1981 |
DEX |
Divisions (1)
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Number |
Date |
Country |
Parent |
150753 |
Feb 1988 |
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