Multilayer multifunctional packaging elements
US5527570A · kind A · utility
17Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Aug 17, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Multilayer and multifunctional packaging elements having a high-absorption activity toward aqueous liquid substances as well as barrier properties toward gases such as oxygen and carbon dioxide are prepared by thermoforming. The packaging elements includes an inner porous layer, an intermediate absorbing layer and an outer sheet having high barrier properties toward gases. The intermediate layer may contain anti-bacterial agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.