Reinforced microporous membrane
US4707265A · kind A · utility
91Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1985 |
| Grant date | Nov 17, 1987 |
| Priority date | — |
| Expiry date | Sep 30, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/755
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A reinforced laminated filtration membrane is provided. The membrane comprises: PA1 (a) a porous reinforcing web impregnated with a polymeric microporous inner membrane; and PA1 (b) at least one polymeric microporous outer membrane laminated to each side of the impregnated web, wherein the pore size of the inner membrane is greater than the pore size of the outer membranes. Preferably, the polymeric membranes are nylon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.