Claims
- 1. A composite or asymmetric membrane, which comprises a miscible blend of an aromatic polyethersulfone having the following repeating unit ##STR26## and an aromatic polymide having the following repeating unit ##STR27##
- 2. The composite or asymmetric membrane according to claim 1, wherein the miscible blend comprises between 1 and 99% by weight of the aromatic polyethersulfone.
- 3. The composite or asymmetric membrane according to claim 1, wherein the miscible blend comprises at least 25% by weight of the aromatic polymide.
- 4. The composite or asymmetric membrane according to claim 1, which is in the form of a hollow fiber.
CROSS-REFERENCE TO RELATED APPLICATIONS
This is a continuation of application Ser. No. 08/496,374, filed Jun. 29, 1995, which is a continuation-in-part of U.S. Ser. No. 08/139,441, filed Oct. 19, 1993, abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
5085676 |
Ekiner et al. |
Feb 1992 |
|
5286812 |
Karasz et al. |
Feb 1994 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
496374 |
Jun 1995 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
139441 |
Oct 1993 |
|