Claims
- 1. An unsaturated polyester composition which is copolymerizable with an unsaturated monomer to form a fire retardant polymer composition, said unsaturated polyester composition comprising an .alpha.,.beta.-ethylenically unsaturated polyester of a polycarboxylic compound and a polyhydric alcohol, which contains halogen in a proportion of greater than about 4.4 weight percent, and about 0.55 to about 50 weight percent of copper or a copper compound.
- 2. A copolymerizable mixture of an unsaturated polyester composition and a copolymerizable ethylenically unsaturated monomer capable of copolymerization to form a fire retardant polymer composition, said unsaturated polyester composition comprising an .alpha.-,.beta.-ethylenically unsaturated polyester of a polycarboxylic compound and a polyhydric alcohol, which contains halogen in a proportion of greater than about 4 weight percent, and an effective fire retardant proportion of about 0.5 up to about 5 weight percent of copper or a copper compound, wherein said proportions are based on the weight of unsaturated polyester and copolymerizable unsaturated monomer.
- 3. The composition of claim 2 wherein said halogen is present as a halogen containing polycarboxylic compound.
- 4. The composition of claim 3 wherein said halogen is chlorine.
- 5. The composition of claim 3 wherein said polycarboxylic compound is chlorendic acid or chlorendic anhydride.
- 6. The composition of claim 3 wherein said polycarboxylic compound is tetrachlorophthalic anhydride.
- 7. The composition of claim 2 wherein the haogen is bromine.
- 8. The composition of claim 3 wherein said polycarboxylic compound is tetrabromophthalic anhydride.
- 9. The composition of claim 2 wherein said halogen is chlorine and bromine.
- 10. The composition of claim 9 wherein said halogen is present as chlorendic acid or anhydride and dibromopropanol.
- 11. The composition of claim 2 wherein said copper compound is an essentially colorless copper salt.
- 12. The composition of claim 11 wherein the copper salt is anhydrous cupric sulfate.
- 13. The composition of claim 2 wherein said copper compound is a copper salt that permits transmission of light when said polyester is copolymerized with an ethylenically unsaturated monomer.
- 14. The composition of claim 13 wherein said copper salt is hydrated cupric sulfate.
- 15. The composition of claim 13 wherein said copper salt is hydrated cupric chloride.
- 16. The composition of claim 13 wherein said copper salt is cupric carbonate.
- 17. The composition of claim 13 wherein said copper salt is copper oxychloride.
- 18. The composition of claim 13 wherein said copper salt is copper thiocyanate.
- 19. The composition of claim 13 wherein said copper salt is cupric phosphate.
- 20. The composition of claim 2 wherein said copper compound is copper oxide.
- 21. The composition of claim 20 wherein said copper oxide is cupric oxide.
- 22. The composition of claim 2 wherein said copper compound is an insoluble compound.
- 23. The composition of claim 2 wherein said copper compound is copper chromate.
- 24. The composition of claim 2 wherein said copper compound is cupric bromide.
- 25. The composition of claim 2 wherein said copper compound is copper tungstate.
- 26. The composition of claim 2 wherein said copper compound is copper borate.
- 27. The mixture of claim 2 wherein said monomer is styrene.
- 28. The mixture of claim 2 when copolymerized to an infusible product.
- 29. The composition of claim 2 when mixed with an inert filler and copolymerized to an infusible, insoluble product.
- 30. The composition of claim 2 when mixed with a reinforcing agent and copolymerized to an infusible, insoluble reinforced product.
- 31. A laminated article comprised of copolymerized sheets of the composition of claim 2 admixed with a reinforcing agent.
- 32. A copolymerizable mixture of an unsaturated polyester composition and a copolymerizable ethylenically unsaturated monomer capable of copolymerization to form a translucent fire retardant polymer composition, said unsaturated polyester composition comprising an unsaturated polyester of chlorendic acid or anhydride, an unsaturated dicarboxylic acid or anhydride and a dihydric alcohol, which contains halogen in a proportion of greater than about 20 weight percent and a proportion of about 0.5 to about 2 weight percent of a copper compound that permits transmission of light when said polyester is copolymerized with said monomer, wherein said proportions are based on the weight of said unsaturated polyester and said monomer.
- 33. The composition of claim 32 wherein the copper compound is copper sulfate.
REFERENCE TO PRIOR APPLICATION
This is a continuation-in-part of copending application Ser. No. 383,747, filed July 30, 1973, and now abandoned.
US Referenced Citations (19)
Foreign Referenced Citations (2)
Number |
Date |
Country |
1,387,400 |
Dec 1964 |
FR |
1,387,400 |
May 1966 |
FR |
Non-Patent Literature Citations (1)
Entry |
Pitts, "Antimony-Halogen Synergistic Reactions in Fire Retardants," Journal of Fire & Flammability, pp. 51-84 (1972). |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
383747 |
Jul 1973 |
|