Chlorinated ethylene-based polymers and compositions and articles prepared therefrom
The invention provides a chlorinated ethylene-based polymer, process for preparing the same, and compositions and articles prepared from the same. The chlorinated ethylene-based polymer has a low residual crystallinity, for example, less than 8 percent, a relatively high crystallization temperature, Tc, for example greater than, or equal to, 25° C., and a medium weight average molecular weight, Mw, for example, less than, or equal to, 325,000 g/mole.
1. A chlorinated ethylene-based polymer comprising the following properties:
a) a percent crystallinity less than 8, as measured by DSC, using a polyethylene heat of fusion of 290 Joules per gram, and
b) a crystallization temperature, Tc, from 28° C. to 60° C., and
wherein the chlorinated ethylene-based polymer is formed from an ethylene-based polymer that has a weight average molecular weight, Mw, less than, or equal to, 325,000 g/mol.
2. The chlorinated ethylene-based polymer of claim 1 , wherein the ethylene-based polymer has a weight average molecular weight less than, or equal to, 300,000 g/mole.
3. The chlorinated ethylene-based polymer of claim 1 , wherein the ethylene-based polymer has a weight average molecular weight greater than 150,000 g/mole.
4. The chlorinated ethylene-based polymer of claim 1 , wherein the ethylene-based polymer is an HDPE.
5. The chlorinated ethylene-based polymer of claim 1 , wherein the chlorinated ethylene-based polymer has a percent crystallinity less than 5.
6. The chlorinated ethylene-based polymer of claim 1 , wherein the chlorinated ethylene-based polymer has a percent crystallinity less than 2.
7. The chlorinated ethylene-based polymer of claim 1 , wherein the chlorinated ethylene-based polymer has a crystallization temperature, Tc, from 28° C. to 50° C.
8. The chlorinated ethylene-based polymer of claim 1 , wherein the chlorinated ethylene-based polymer has a crystallization temperature, Tc, from 28° C. to 40° C.
9. The chlorinated ethylene-based polymer of claim 1 , wherein the chlorinated ethylene-based polymer contains from 20 to 50 weight percent chlorine, based on the total weight of polymer.
10. The chlorinated ethylene-based polymer of claim 1 , wherein the chlorinated ethylene-based polymer exhibits a “100 percent modulus” value of greater than 1.15 N/mm 2 , and a crystallization temperature of greater than 28° C.
11. The chlorinated ethylene-based polymer of claim 1 , wherein the chlorinated ethylene-based polymer has a blocking force of 20 psi or less.
12. A composition comprising the chlorinated ethylene-based polymer of claim 1 .
13. The composition of claim 12 , further comprising an ethylene/alpha-olefin interpolymer.
14. The composition of claim 12 , further comprising an acrylic polymer.
15. The composition of claim 12 , further comprising a vinyl chloride polymer.
16. The composition of claim 13 , further comprising a vinyl chloride polymer.
17. The composition of claim 14 , further comprising a vinyl chloride polymer.
18. An article comprising at least one component formed from the chlorinated ethylene polymer of claim 1 .
19. An article comprising at least one component formed from the composition of claim 12 .
20. An article comprising at least one component formed from the composition of claim 13 .
21. An article comprising at least one component formed from the composition of claim 14 .
22. An article comprising at least one component formed from the composition of claim 15 .
23. An article comprising at least one component formed from the composition of claim 16 .
24. An article comprising at least one component formed from the composition of claim 17 .
25. The article of claim 19 , wherein the article is formed by an extrusion process.
26. The article of claim 25 , wherein the article is an extrusion profile.
27. The article of claim 26 , wherein the extrusion profile has ten or less surface defects per six meters of profile.
28. The article of claim 25 , wherein the article is selected from the group consisting of sheets, siding, pipes, tubes, window profiles, fencing, decking, and electrical conduits.
29. A chlorinated ethylene-based polymer comprising the following properties:
a) a percent crystallinity less than 8, as measured by DSC, using polyethylene heat of fusion of 290 Joules per gram, and
b) a crystallization temperature, Tc, from 25° C. to 80° C., and
wherein the chlorinated ethylene polymer is formed from an ethylene-based polymer that has a weight average molecular weight, Mw, less than, or equal to, 325,000 g/mole and greater than 150,000 g/mole.
30. The chlorinated ethylene-based polymer of claim 29 , wherein the ethylene-based polymer has a weight average molecular weight less than, or equal to, 300,000 g/mole.
31. The chlorinated ethylene-based polymer of claim 29 , wherein the ethylene-based polymer has a weight average molecular weight greater than 175,000 g/mole.
32. The chlorinated ethylene-based polymer of claim 29 , wherein the ethylene-based polymer is an HDPE.
33. The chlorinated ethylene-based polymer of claim 29 , wherein the chlorinated ethylene-based polymer has a percent crystallinity less than 5.
34. The chlorinated ethylene-based polymer of claim 29 , wherein the chlorinated ethylene-based polymer has a percent crystallinity less than 2.
35. The chlorinated ethylene-based polymer of claim 29 , wherein the chlorinated ethylene-based polymer has a crystallization temperature, Tc, from 25° C. to 60° C.
36. The chlorinated ethylene-based polymer of claim 29 , wherein the chlorinated ethylene-based polymer has a crystallization temperature, Tc, from 25° C. to 50° C.
37. The chlorinated ethylene-based polymer of claim 29 , wherein the chlorinated ethylene-based polymer contains from 20 to 50 weight percent chlorine, based on the total weight of polymer.
38. The chlorinated ethylene-based polymer of claim 29 , wherein the chlorinated ethylene-based polymer exhibits a “100 percent modulus” value of greater than 1.15 N/mm 2 , and a crystallization temperature of greater than 28° C.
39. The chlorinated ethylene-based polymer of claim 29 , wherein the chlorinated ethylene-based polymer has a blocking force of 20 psi or less.
40. A composition comprising the chlorinated ethylene-based polymer of claim 29 .
41. The composition of claim 40 , further comprising an ethylene/alpha-olefin interpolymer.
42. The composition of claim 41 , further comprising an acrylic polymer.
43. The composition of claim 40 , further comprising a vinyl chloride polymer.
44. The composition of claim 41 , further comprising a vinyl chloride polymer.
45. The composition of claim 42 , further comprising a vinyl chloride polymer.
46. An article comprising at least one component formed from the composition of claim 40 .