Melt-extruded multilayer polyethylene bag film
US4356221A · kind A · utility
30Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1981 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | May 15, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multi-layer polyethylene film especially suitable for garbage and refuse bags, comprising a first layer of at least 75 wt. % high pressure-low density polyethylene (HPLPDE), and at least a second layer of HPLDPE and low pressure-low density polyethylene (LPLDPE), in which the LPLDPE is less than about 25 wt. % of the LPLDPE plus HPLDPE total weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.