Gas barrier resin film
US5939205A · kind A · utility
25Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1997 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Apr 15, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31765
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A gas barrier film comprising a polyamide film and an inorganic deposited layer laminated thereon, wherein the maximum shrinkage percentage after boiling treatment at 95.degree. C. for 30 minutes is not more than 3.5%. The gas barrier film of the present invention has excellent gas barrier property and water vapor-proof property even after boiling or retort treatment. Hence, the film of the present invention can serve well as a wrapping material for a wide range of objects that require high gas barrier property, such as food, medical products, industrial materials and the like, and has great industrial value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.