Hydrophilic microporous membrane
US5019262A · kind A · utility
10Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1989 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Oct 6, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/36
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A membrane that is prepared in an oil in water system and comprises a hydrophilic polymer film having controlled porosity. Such membranes are particularly well suited as filters for cigarettes and like products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.