High strength nylon blend membranes
US4477598A · kind A · utility
7Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1984 |
| Grant date | Oct 16, 1984 |
| Priority date | — |
| Expiry date | Mar 2, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2377/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A casting solution of two nylons in formic acid, e.g., high molecular weight extrusion grade Nylon 66 homopolymer [.eta.] about 2 or higher, and nylon multipolymer 66, 610, 6 as a strengthening polymer and gelation promoter, when cast by either the dry or wet phase inversion processes, results in highly unexpected membranes of superior strength, flexibility, and uniformity, suitable for use in microfiltration and ultrafiltration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.