Peelable overpouch films
US6844038B2 · kind B2 · utility
4Cited by
13References
66Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 24, 2003 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Jan 24, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a peelable polymeric layer structure having a first sealant layer including an ethylene-containing polymer, and a second sealant layer including a polypropylene-containing polymer attached to the first sealant layer along a peelable seal. The present invention also provides an overpouch container including a first sidewall having a first sealant layer of an ethylene-containing polymer, and a second sidewall having a second sealant layer of a propylene containing polymer. The second sealant layer is attached to the first sealant layer along a peelable peripheral seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.