High MIR linear polyethylenes and coextruded films therefrom
US8715813B2 · kind B2 · utility
0Cited by
11References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2008 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Dec 4, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A high clarity, high throughput film comprising at least two skin layers and at least one core layer there between, wherein the skin layers comprise at least one linear ethylene-α-olefin copolymer having an I21/I2 of greater than 20; a density within the range from 0.910 to 0.945 g/cm3 and CDBI of less than 40; and the core layer comprises at least one polyethylene having an overall density of at least 0.910 g/cm3; wherein the film has a dart impact (ASTM D1709) of greater than 10 g/μm and a Haze (ASTM D1003 method B) of less than 10%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.