Methods for making flexible containers and associated products
US11267176B2 · kind B2 · utility
0Cited by
1References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2018 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Oct 15, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D39/0052
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a method for making a flexible container. The method implements an injection mold having a collapsible core that expands/moves to define the apertures and, in some embodiments, holds a flexible film in place during the injection mold process and collapses/moves back post-injection molding to allow for the flexible container to be readily removed from the die. In addition, the method described includes a post-injection molding anneal process that is implemented to allow the flexible film to shrink so as to provide for form-fitting of the film to the molded portion of the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.