Biaxially oriented HDPE multilayer film
US6387529B1 · kind B1 · utility
10Cited by
25References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 24, 1997 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Dec 24, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a biaxially oriented multilayer film structure having (i) a core substrate of high density polyethylene; and (ii) an additional layer of syndiotactic polypropylene on at least one surface of the core substrate. Optionally, the film of the present invention includes at least one heat sealable layer on the outer surface of the additional layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.