Low gauge stretch wrap film
US7172815B2 · kind B2 · utility
7Cited by
10References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2002 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Mar 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31931
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Stretch wrap films are used to hold goods to pallets during storage and shipping. A multilayer stretch wrap film with at least one outer layer of polypropylene and other layers of blends of polyethylenes. The film of the present invention optimizes physical properties enabling the film to have sufficient cling while creating a tolerable noise level upon unwinding. The optimized properties include good clarity, high load containment, high puncture resistance, high stretch and good tear resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.