Process for the polymerization of olefins; novel polyethylenes, and films and articles produced therefrom
View Patent ↗A novel process for the polymerization of olefins is provided. The process involves contacting at least one olefin with a Ziegler-Natta type catalyst in the presence of a specified compound that results in the production of polymeric products having a narrower molecular weight distribution. Also provide is a process for narrowing the molecular weight distribution of a polyolefin comprising contacting an olefin, a Ziegler-Natta catalyst and a compound specified herein. Further provided are novel polyethylenes, and films and articles produced therefrom.
1. A copolymer consisting of ethylene and 1-hexene, wherein ethylene composes at least 50% by weight of the copolymer, and wherein the copolymer has a DSC melt transition temperature of 116° C. to 123° C., a density of from 0.880 g/cc to 0.930 g/cc, an n-hexane extractable of from 0 to 6 weight percent, and a melt flow ratio of from 26 to 34.
2. A copolymer of ethylene and 1-hexene, wherein the copolymer has a DSC melt transition temperature is from 119° C. to 121° C., a density of 0.905 g/cc to 0.920 g/cc, an n-hexane extractable of 0 to 3 weight percent, and a melt flow ratio of 26 to 32.
3. A copolymer of ethylene and an olefin having 3-16 carbon atoms, wherein ethylene composes at least 99% by weight of the copolymer, and wherein the copolymer has a melt flow ratio of from 22 to 26.
4. A copolymer consisting of ethylene and at least one or more olefin(s) having 5 to 16 carbon atoms, wherein ethylene composes at least 50% by weight of the copolymer, and wherein the copolymer has a DSC melt transition temperature of 116° C. to 123° C., a density of from 0.880 g/cc to 0.930 g/cc, an n-hexane extractable of from 0 to 6 weight percent, and a melt flow ratio of from 26 to 34.
5. A film fabricated from the copolymer according to claim 1 .
6. A film fabricated from the copolymer according to claim 2 .
7. A film fabricated from the copolymer according to claim 3 .
8. A film fabricated from the copolymer according to claim 4 .
9. An article fabricated from the copolymer according to claim 1 .
10. An article fabricated from the copolymer according to claim 2 .
11. An article fabricated from the copolymer according to claim 3 .
12. An article fabricated from the copolymer according to claim 1 .