Claims
- 1. A composition of matter comprising:
- (a) about 10 to about 35 weight percent of a low molecular weight ethylene homopolymer resin, where said resin is made by polymerizing ethylene with a titanium chloride based catalyst system, and where said resin has a density greater than about 0.96 grams per cubic centimeter, a melt index greater than about 30 grams per 10 minutes, and a heterogeneity index from about 2 to about 8,
- (b) about 65 to about 90 weight percent of a high molecular weight ethylene copolymer resin, where said resin is made by copolymerizing ethylene and an alpha-olefin with a titanium chloride based catalyst system, and where said resin has a density less than 0.955 grams per cubic centimeter, a high load melt index from about 2 to about 6 grams per 10 minutes, and a heterogeneity index from about 2 to about 8,
- where said weight percents are based on the total weight of said resins (a) and (b); and
- wherein said composition of matter has a high load melt index from about 10 to about 25 grams per 10 minutes, a melt index greater than 0.05 grams per 10 minutes, a density greater than 0.94 grams per cubic centimeter and less than or equal to 0.98 grams per cubic centimeter, and is essentially free of other ethylene polymers.
- 2. A composition according to claim 1 wherein said melt index of said low molecular weight ethylene homopolymer resin is from about 100 to about 400 grams per 10 minutes.
- 3. A composition according to claim 1 wherein said alpha-olefin is selected from the group consisting of propylene, 1-butene, 3-methyl-1-butene, 1-pentene, 3-methyl-1-penetene, 4-penetene, 1-hexene, 3-ethyl-1-hexene, and mixtures of two or more said alpha-olefins.
- 4. A composition according to claim 1 wherein said copolymer has a density from about 0.93 to about 0.95 grams per cubic centimeter.
- 5. A composition according to claim 1 wherein said high load melt index of said composition is between 10 and 25 grams per 10 minutes.
- 6. A composition of matter comprising:
- (a) about 10 to about 35 weight percent of a low molecular weight ethylene homopolymer resin, where said resin is made by polymerizing ethylene with a titanium chloride based catalyst system, and where said resin has a density greater than 0.96 grams per cubic centimeter, a melt index greater than 30 grams per 10 minutes, and a heterogeneity index from 2 to 8,
- (b) about 65 to about 90 weight percent of a high molecular weight ethylene copolymer resin, wherein said resin is made by copolymerizing ethylene and an alpha-olefin with a titanium chloride based catalyst system, and where said resin has a density less than 0.955 grams per cubic centimeter, a high load melt index from about 2 to about 6 grams per 10 minutes, and a heterogeneity index from about 2 to about 8,
- where said weight percent are based on the total weight of said resins (a) and (b); and
- wherein said composition of matter has a high load melt index from about 10 to about 25 grams per 10 minutes, a melt greater than 0.05 grams per 10 minutes, a density greater than 0.94 grams per cubic centimeter and less than or equal to 0.98 grams per cubic centimeter, and is essentially free of other ethylene polymers.
- 7. A composition of matter according to claim 6 wherein said melt index of said low molecular weight ethylene homopolymer resin is from about 100 to about 400 grams per 10 minutes.
- 8. A composition of matter according to claim 6 wherein said alpha-olefin is selected from the group consisting of propylene, 1-butene, 3-methyl-1-butene, 1-pentene, 3-methyl-1-pentene, 4-methyl-1-pentene, 1-hexene, 3-ethyl-1-hexene, and mixtures of two or more said alpha-olefins.
- 9. A composition of matter according to claim 6 wherein said copolymer has a density from about 0.93 to about 0.95 grams per cubic centimeter.
- 10. A composition of matter according to claim 6 wherein said high load melt index of said composition is between 10 and 25 grams per 10 minutes.
- 11. A composition of matter according to claim 1 wherein said composition of matter has a density greater than or equal to 0.942 grams per cubic centimeter and less than or equal to 0.98 grams per cubic centimeter.
- 12. A composition of matter according to claim 1 wherein said composition of matter has a density greater than or equal to 0.945 grams per cubic centimeter and less than or equal 0.98 grams per cubic centimeter.
- 13. A composition of matter according to claim 1 wherein said composition of matter has a melt index greater than or equal to 0.1 grams per 10 minutes.
- 14. A composition of matter according to claim 1 wherein said composition of matter has a melt index greater than or equal to 0.1 grams per 10 minutes and less than or equal to 5 grams per 10 minutes.
- 15. A composition of matter according to claim 6 wherein said composition of matter has a density greater than or equal to 0.942 grams per cubic centimeter and less than or equal 0.98 grams per cubic centimeter.
- 16. A composition of matter according to claim 6 wherein said composition of matter has density greater than or equal to 0.945 grams per cubic centimeter and less than or equal 0.98 grams per cubic centimeter.
- 17. A composition of matter according to claim 6 wherein said composition of matter has a index greater than or equal to 0.1 grams per 10 minutes.
- 18. A composition of matter according to claim 6 wherein said composition of matter has a melt index greater than or equal to 0.1 grams per 10 minutes and less than or equal to 5 grams per 10 minutes.
- 19. A composition according to claim 1 wherein said composition of matter has a density than or equal to 0.945 grams per cubic centimeter and less than or equal to 0.98 grams per cubic centimeter, and a melt index greater than or equal to 0.1 grams per 10 minutes and less than 5 grams per minutes.
- 20. A composition according to claim 6 wherein said composition of matter has density greater than or equal to 0.945 grams per cubic centimeter and less than or equal to 0.98 grams per cubic centimeter, and a melt index greater than or equal to 0.1 grams per 10 minutes and less than 5 grams per minutes.
CROSS REFERENCE TO RELATED APPLICATION
This patent application is a continuation-in-part of patent application Ser. No. 07/761,603 which was filed on Sept. 18, 1991, now abandoned, the entire disclosure of which is hereby incorporated by reference.
US Referenced Citations (10)
Foreign Referenced Citations (2)
Number |
Date |
Country |
54-161657 |
Dec 1979 |
JPX |
61-57638 |
Mar 1986 |
JPX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
761603 |
Sep 1991 |
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