Multi-layer hermetically sealable film
US6794021B2 · kind B2 · utility
9Cited by
16References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2002 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | May 29, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A thermoplastic multi-layer film for forming hermetic seals on packages comprising layer A comprising polyethylene, layer B comprising polypropylene, layer C comprising a copolymer, and an adhesion promoting coating applied to layer C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.