Multilayer thermoplastic packaging film
US5885699A · kind A · utility
16Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Jan 28, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31931
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multilayer film characterized by having excellent oxygen permeability and thermoformable properties comprising a sealant layer and a heat resistant layer is disclosed. The sealant layer contains an ethylene based polymer or copolymer. The heat resistant layer has a melting point greater than that of the polymeric composition of the sealing layer. Internal layers also can be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.