Films, packaging and methods for making them
US8342389B2 · kind B2 · utility
7Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2008 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Aug 19, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/15
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to a flexible polymeric film for enveloping a container comprising: a tear path; and a tear tab extending from the outer surface of the film; wherein the tear path comprises at least one fault line arranged to facilitate tearing of the film in one direction when the tear tab is pulled in a direction generally perpendicular to the container; wherein the at least one fault line comprises an embossed pattern being positioned to enhance the sound generated by the tearing of the at least one fault line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.