Claims
- 1. A membrane body (10) comprising at least one flat membrane and a hollow membrane (11) at least partially surrounded by said at least one flat membrane (12).
- 2. A membrane body (10) according to claim 1, wherein said hollow membrane (11) is fully surrounded by said at least one flat membrane (12).
- 3. A membrane body (10) according to claim 1, wherein said hollow membrane (11) is surrounded by at least two flat membranes (12).
- 4. A membrane body (10) according to claim 1, wherein said hollow membrane (11) and said at least one flat membrane, (12) are interconnected.
- 5. A membrane body (10) according to claim 1, wherein said hollow membrane (11) and said at least one flat membrane (12) consist of at least one polymer, or co-polymer.
- 6. A membrane body (10) according to claim 1, wherein at least two hollow membranes are provided and form a hollow membrane mat or hollow membrane bundle consisting preferably of polypropylene.
- 7. A membrane body (10) according to claim 1, wherein the flat membrane (12) is manufactured from a polymer solution.
- 8. A membrane body (10) according to claim 7, wherein said polymer solution is 10% polyacrylnitrile/dimethylformamide polymer solution.
- 9. A membrane body (10) according to claim 1, wherein said membrane body includes reinforcement structures in the form of one of particles, fleece and fiber structures disposed in the polymer solution.
- 10. A method for the manufacture of a membrane body (10) comprising the steps of: providing at least one hollow membrane (11) and applying to said at least one hollow membrane (11), a flat membrane (12) such that the flat membrane (11) at least partially surrounds said hollow membrane.
- 11. A method according to claim 10, wherein said hollow membrane 11 and said flat membrane 12 are interconnected.
- 12. A method according to claim 10, wherein said hollow membrane (11) and said flat membrane consist of at least one of a polymer and a copolymer.
- 13. A method according to claim 10, wherein said hollow membrane (11) is combined with at least a second hollow membrane (11) to form a hollow membrane mat or bundle.
- 14. A method according to claim 13, wherein said hollow membrane mat or bundle consists of propylene.
- 15. A method according to claim 10, wherein said flat membrane (12) is formed from a polymer solution.
- 16. A method according to claim 15, wherein said polymer solution consists of polyacrylnitrile/dimethylformamide.
- 17. A method according to claim 10, wherein said polymer forming said membrane body includes reinforcement means consisting of at least one of particles, a fleece and fibers.
Priority Claims (1)
Number |
Date |
Country |
Kind |
101 38 319.3 |
Aug 2001 |
DE |
|
Parent Case Info
[0001] This is a Continuation-In-Part Application of International Application PCT/DE02/02796 filed Oct. 31, 2002 and claiming the priority of German application 101 38 319.3 filed Aug. 10, 2001.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
PCT/DE02/02796 |
Jul 2002 |
US |
Child |
10775823 |
Feb 2004 |
US |