Polyethylene films having improved optical properties
US6359072B1 · kind B1 · utility
49Cited by
19References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2000 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Feb 16, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2314/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Unique blends of metallocene catalyzed polymers are disclosed. The blends of the invention include a first polyethylene having a narrow molecular weight distribution and a narrow composition distribution breadth index (CDBI), and a second polyethylene having a relatively broad molecular weight distribution and a very narrow CDBI. The blend is advantageously used when it includes 50 percent or greater of the first polyethylene and 50 percent or less of the second polyethylene. Blown film made from the blend will have an unexpectedly good set of optical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.