Membrane permeable to frangrances and other products
US5804264A · kind A · utility
24Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multilayer permeable membrane with a release layer for the packaging of aromatic condensation products. The permeable membrane has a first layer comprising low density polyethylene, a second layer comprising ultra low density polyethylene and a third layer comprising low density polyethylene. The release layer is adhered to the first layer and may be peeled away from the permeable membrane to expose the membrane and provide for the controlled release of vapors over a period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.