MODIFIED CHROMIUM CATALYSTS ON A SUBSTRATE AND ETHYLENE-BASED POLYMERS PRODUCED WITH THEIR USE

Claims

1. A polymer of ethylene, characterized by: Mw in the range from about 100,000 to about 400,000 g / mol; in that at least about 2% by weight of the polymer has a molecular weight greater than 1,000,000 g / mol; and in that at least about 1.5% by weight of the polymer has a molecular weight of less than 1000 g / mol.

2. An ethylene polymer according to claim 1, characterized in that said polymer has: Mn in the range from about 3000 to about 10000 g / mol; Mz in the range from about 1,500,000 to about 4,000,000 g / mol; Mp in the range from about 10,000 to about 60,000 g / mol; a Mw / Mn ratio in the range of from about 30 to about 80; an Mz / Mw ratio in the range of from about 6 to about 13; or any combination of the specified parameters.

3. An ethylene polymer according to claim 1, characterized in that said polymer has: Mn in the range from about 4000 to about 7000 g / mol; Mz in the range from about 2,000,000 to about 3,000,000 g / mol; Mp in the range from about 15,000 to about 30,000 g / mol; a Mw / Mn ratio in the range of from about 40 to about 55; an Mz / Mw ratio in the range of from about 8.5 to about 10.5; or any combination of the specified parameters.

4. An ethylene polymer according to any one of paragraphs 1-3, characterized in that: Mw is from about 200,000 to about 300,000 g / mol; from about 4 to about 9 wt.% of the polymer has a molecular weight greater than 1,000,000 g / mol; and from about 3 to about 6 wt.% of the polymer has a molecular weight of less than 1000 g / mol.

5. An ethylene polymer according to any one of paragraphs 1-4, characterized in that: from about 8 to about 20% by weight of the polymer has a molecular weight of less than 3162 g / mol; from about 53 to about 73 wt.% of the polymer has a molecular weight in the range of 10,000 to 1,000,000 g / mol; and the polymer has a maximum detectable molecular weight of at least about 6,000,000 g / mol.

6. An ethylene polymer according to any one of claims 1 to 5, characterized in that said ethylene polymer comprises an ethylene homopolymer, an ethylene / 1-butene copolymer, an ethylene / 1-hexene copolymer and / or an ethylene / 1-octene copolymer.

7. An article containing an ethylene polymer according to any one of paragraphs 1-6.

8. A homopolymer of ethylene having: the number of methyl short chain branches (SCBs) in the range from about 3.5 to about 15 per 1000 carbon atoms; a butyl short-chain branching (SCB) count of approximately 0.6 or less per 1000 carbon atoms; and Mw / Mn ratio in the range from about 4 to about 10.

9. The homopolymer according to claim 8, characterized in that said homopolymer has: an Mz / Mw ratio in the range of about 2.5 to about 7; Mw in the range from about 30,000 to about 200,000 g / mol; density in the range of about 0.93 to about 0.96 g / cm 3 ; or any combination of the specified parameters, or where the specified homopolymer has: an Mz / Mw ratio in the range of from about 3 to about 6; Mw in the range from about 40,000 to about 135,000 g / mol; density in the range of about 0.935 to about 0.955 g / cm 3 ; or any combination of the specified parameters.

10. A homopolymer according to claim 8 or 9, characterized in that: the number of methyl CCRs is from about 5 to about 10 per 1000 carbon atoms; the number of butyl CCRs is approximately 0.2 or less per 1000 carbon atoms; and the Mw / Mn ratio is from about 4.5 to about 8.

5.

11. A homopolymer according to any one of paragraphs 8-10, characterized in that in said homopolymer the number of ethyl CCRs is from about 0.8 to about 5 per 1000 carbon atoms, and / or in said homopolymer the ratio of vinyl chain ends to saturated chain ends per 1000 carbon atoms is about 0.3 or less, and / or said homopolymer contains independently less than 0.08 ppm by weight of nickel and iron.

12. An ethylene polymer containing: terminal branched alkane group; terminal cyclic alkane group; terminal aromatic group; or terminal halogenated hydrocarbon group.

13. An ethylene polymer according to claim 12, characterized in that said polymer contains a terminal branched alkane group, and said branched alkane group is C4-C 36 branched alkane group, or said polymer contains a terminal cyclic alkane group, and said cyclic alkane group is C4-C 36 cyclic alkane group, or said polymer contains a terminal aromatic group, and said aromatic group is a benzene group, a toluene group, an ethylbenzene group, a xylene group, or a mesitylene group, or said polymer contains a terminal halogenated hydrocarbon group, and said halogenated hydrocarbon group is C1-C 36 halogenated hydrocarbon group.

14. An ethylene polymer according to claim 12 or 13, characterized in that said ethylene polymer comprises an ethylene homopolymer, an ethylene / 1-butene copolymer, an ethylene / 1-hexene copolymer and / or an ethylene / 1-octene copolymer.

15. An article containing an ethylene homopolymer according to any one of claims 8-11 or containing an ethylene polymer according to any one of claims 12-14.