Recyclable pouch having reseal closure overlapping an edge seal, formed from rollstock film, on high speed packaging machinery
US11577864B2 · kind B2 · utility
0Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2019 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Oct 28, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2160/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Recyclable pouches formed from rollstock and having a resealable closure that extends into both side edges of the pouch may be produced at high speeds on a single manufacturing line in which the pouches are formed, cut apart, filled, and then sealed if the film forming the pouch comprises a recyclable heat seal layer and a second recyclable layer having a melting temperature of at least 30° C. greater than the heat seal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.