Integral microporous high void volume polycarbonate membranes and a dry process for forming same
US3945926A · kind A · utility
37Cited by
4References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1972 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Oct 2, 1992 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2369/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Integral, skinned and unskinned, microporous microfiltration and ultrafiltration, electrophoresis membranes having high void volumes (above 50% void) composed of polycarbonates and copolymers of polycarbonates with polyalkylene oxides and the dry process for producing such membranes are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.