Packaging container and method for manufacturing the same
US9371159B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2014 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Sep 12, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/70
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
To provide, with a simple construction, a packaging container by which leakage can be prevented, and breakage of the packaging container and flying-out of the contents accompanying the pressure rise in the inside of the container accompanying the warming can be prevented in warming the contents together with the container body.An internal space 2 for storing contents F is formed by a laminate film 1. A circumferential end part of the laminate film 1 is subjected to a thermal fusion treatment to form a sealed portion 3 (3a to 3c). In laminate film 1, a first slit Sa having a predetermined length is formed so as to intersect a part of the sealed portion 3b. A second adhesive layer Lb is disposed in a region having a predetermined width in a neighborhood of the first slit Sa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.