Water soluble packaging system and method
US6484879B2 · kind B2 · utility
14Cited by
25References
33Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 7, 1997 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Apr 7, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D65/46
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a bag packaging system composed of a bag sealable to contain a liquid, in which the bag is composed of a continuous outer water soluble film and an inner continuous protective film layer that allows storage therein of a liquid that would chemically or physically react with the water soluble film but is prevented from doing so by the presence of the continuous protective film layer on the inner portion of the bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.