Packaging film
US6027793A · kind A · utility
9Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1997 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Nov 3, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31667
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A packaging film which is transparent to UV light and has a barrier action against water vapor and gases features at least one substrate layer of a polyolefin or polyamide with a ceramic coating of SiO.sub.x, where x is a number from 1.5 to 2 and the thickness of the ceramic layer is 10 nm to 2 .mu.m. The packaging film is suitable for packaging basic and luxury foodstuffs that are sterilized in the packaged condition by radiation with UV light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.