Antistatic film for packaging materials diffusing volatile products
US6045919A · kind A · utility
13Cited by
16References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Dec 11, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31757
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention relates to antistatic wrapping films comprising at least one layer made of polyamide or of an alloy of polyamide and of polyolefin. The antistatic additive is a polymer containing polyamide blocks and polyether blocks. They are particularly useful for wrapping expandable polystyrene which contains pentane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.