Multilayer film
US6811844B2 · kind B2 · utility
25Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Dec 19, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31971
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention relates to a multilayer packaging comprising at least one cellulosic fibrous material substrate, and at least one polymeric film coated on the cellulosic substrate, where the polymeric film is made of at least one barrier layer comprising an olefin polymer, and at least one sealant layer comprising an amorphous polyamide, the sealant layer being a layer positioned so that it may contact the packaged product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.