Thermoplastic multi-layer packaging film and bags made therefrom having two layers of very low density polyethylene
US5234731A · kind A · utility
27Cited by
9References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 1990 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | May 25, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31924
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A heat-shrinkable, oriented film having two layers of different very low density polyethylenes is disclosed. The melt index of the polyethylenes differs by about 1 or more decigrams/minute. The films have good shrink and good puncture resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.