Stretch hoods made from ULDPE-rich formulations
US9238355B2 · kind B2 · utility
1Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2011 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Aug 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31909
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A polymeric, mono- or multilayer stretch hood packaging film with an overall density that does not exceed 0.920 g/cc includes: A. At least one core layer containing: 1. At least 50 wt % ULDPE with a density of 0.900 to 0.920 g/cc; and 2. Optionally at least one of: a. LDPE with a density of 0.915 to 0.925 g/cc, and b. EVA with a VA content of 4 to 20 wt %; and B. Optionally, two skin layers, each skin layer independently comprising: 1. At least 50 wt % ULDPE with a density of 0.900 to 0.920 g/cc; and 2. Optionally an LDPE with a density of 0.915 to 0.925 g/cc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.