IP Library › Granted Patent US 7,071,276
Granted Patent B2
US 7,071,276 · App. 10/319,393 · Granted Jul 4, 2006

Process to produce polymers

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Quick Facts
Patent No.
US 7,071,276
App. No.
10/319,393
Granted
Jul 4, 2006
Kind
B2
Abstract

A process to produce ethylene polymers is provided.

Claims (44)

1. A composition comprising an ethylene polymer having a polydispersity (Mw/Mn) greater than about 40, a high load melt index (HLMI) from about 5 to about 15 grams per ten minutes, a shear ratio (HLMI/MI) greater than about 400, and a density from 0.945 to 0.955 grams per cubic centimeter, wherein the ethylene polymer is an ethylene homopolymer or a copolymer of ethylene and an α-olefin having from 4 to about 16 carbon atoms per molecule.

2. The composition of claim 1 , wherein the ethylene polymer has a polydispersity (Mw/Mn) greater than 50.

3. The composition of claim 1 , wherein the ethylene polymer has a polydispersity (Mw/Mn) greater than 60.

4. The composition of claim 1 , wherein the ethylene polymer has a pent test greater than about 500 hours.

5. The composition of claim 1 , wherein the ethylene polymer has a density from 0.947 to 0.953 grams per cubic centimeter.

6. The composition of claim 5 , wherein the ethylene polymer has a pent test greater than 1000 hours.

7. The composition of claim 6 , wherein the ethylene polymer has a polydispersity (Mw/Mn) greater than 50.

8. The composition of claim 1 , wherein the ethylene polymer has a density from 0.948 to 0.951 grams per cubic centimeter.

9. The composition of claim 8 , wherein the ethylene polymer has a pent test greater than 2000 hours.

10. The composition of claim 9 , wherein the ethylene polymer has a polydispersity (Mw/Mn) greater than 60.

11. The composition of claim 1 , wherein the ethylene polymer has a HLMI from 8 to 13 grams per ten minutes.

12. The composition of claim 1 , wherein the ethylene polymer has a shear (HLMI/MI) ratio greater than 500.

13. The composition of claim 1 , wherein the α-olefin has from 4 to about 8 carbon atoms per molecule.

14. The composition of claim 1 , wherein the α-olefin has from 4 to about 6 carbon atoms per molecule.

15. The composition of claim 1 , wherein the olefin is 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, or 1-octene.

16. The composition of claim 1 , wherein the ethylene polymer has a HLMI from 8 to 13 grams per ten minutes, a density from 0.948 to 0.951 grams per cubic centimeter, and a pent test greater than 2000 hours.

17. The composition of claim 6 , wherein the ethylene polymer has a shear ratio (HLMI/MI) greater than 500.

18. The composition of claim 16 , wherein the ethylene polymer has a polydispersity (Mw/Mn) greater than 60.

19. A composition comprising an ethylene polymer having a high load melt index (HLMI) from about 2 to about 20 grams per ten minutes, a shear ratio (HLMI/MI) greater than about 400, and a density from 0.945 to 0.955 grams per cubic centimeter, wherein the ethylene polymer is an ethylene homopolymer or a copolymer of ethylene and an olefin having from 4 to about 16 carbon atoms per molecule.

20. The composition of claim 19 , wherein the ethylene polymer has a polydispersity (Mw/Mn) greater than about 40.

21. The composition of claim 19 , wherein the ethylene polymer has a polydispersity (Mw/Mn) greater than 50.

22. The composition of claim 19 , wherein the ethylene polymer has a polydispersity (Mw/Mn) greater than 60.

23. The composition of claim 19 , wherein the ethylene polymer has a pent test greater than about 500 hours.

24. The composition of claim 19 , wherein the ethylene polymer has a density from 0.947 to 0.953 grams per cubic centimeter.

25. The composition of claim 24 , wherein the ethylene polymer has a pent test greater than 1000 hours.

26. The composition of claim 19 , wherein the ethylene polymer has a density from 0.948 to 0.951 grams per cubic centimeter.

27. The composition of claim 26 , wherein the ethylene polymer has a pent test greater than 2000 hours.

28. The composition of claim 19 , wherein the ethylene polymer has a HLMI from about 5 to about 15 grams per ten minutes.

29. The composition of claim 19 , wherein the ethylene polymer has a HLMI from 8 to 13 grams per ten minutes.

30. The composition of claim 19 , wherein the ethylene polymer has a shear ratio (HLMI/MI) greater than 500.

31. The composition of claim 19 , wherein the olefin is 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, or 1-octene.

32. A composition comprising an ethylene polymer having a density from 0.945 to 0.955 grams per cubic centimeter, a shear ratio (HLMI/MI) greater than about 300, a high load melt index (HLMI) from about 2 to about 20 grams per ten minutes, and a pent test greater than about 500, wherein the ethylene polymer is an ethylene homopolymer or a copolymer of ethylene and an olefin having from 4 to about 16 carbon atoms per molecule.

33. The composition of claim 32 , wherein the ethylene polymer has a density from 0.947 to 0.953 grams per cubic centimeter.

34. The composition of claim 32 , wherein the ethylene polymer has a density from 0.948 to 0.951 grams per cubic centimeter.

35. The composition of claim 32 , wherein the ethylene polymer has a HLMI from about 5 to about 15 grams per ten minutes.

36. The composition of claim 32 , wherein the ethylene polymer has a HLMI from 8 to 13 grams per ten minutes.

37. The composition of claim 32 , wherein the ethylene polymer has a shear ratio (HLMI/MI) greater than 400.

38. The composition of claim 32 , wherein the ethylene polymer has a shear ratio (HLMI/MI) greater than 500.

39. The composition of claim 32 , wherein the ethylene polymer has a pent test greater than 1000 hours.

40. The composition of claim 32 , wherein the ethylene polymer has a pent test greater than 2000 hours.

41. The composition of claim 32 , wherein the olefin is 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, or 1-octene.

42. A pipe comprising the ethylene polymer of claim 1 .

43. A pipe comprising the ethylene polymer of claim 19 .

44. A pipe comprising the ethylene polymer of claim 32 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 20, 2015
From: PHILLIPS PETROLEUM COMPANY
To: CHEVRON PHILLIPS CHEMICAL COMPANY LP
Reel/Frame 036407/0440 →