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1. (WO2001034372) PROCESS OF MAKING ANISOTROPIC SEMIPERMEABLE MEMBRANE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/034372 International Application No.: PCT/US2000/030279
Publication Date: 17.05.2001 International Filing Date: 02.11.2000
Chapter 2 Demand Filed: 05.06.2001
IPC:
B01D 67/00 (2006.01) ,B01D 69/02 (2006.01) ,B01D 69/08 (2006.01) ,B29C 67/20 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
67
Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
69
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
02
characterised by their properties
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
69
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
08
Hollow fibre membranes
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
67
Shaping techniques not covered by groups B29C39/-B29C65/93
20
for porous or cellular articles, e.g. of foam plastics, coarse-pored
Applicants:
BAXTER INTERNATIONAL INC. [US/US]; Patricia A. Koppelman - RLP-30 One Baxter Parkway Deerfield, IL 60015, US
Inventors:
STERNBERG, Shmuel; US
Agent:
BARRETT, Joseph, B. ; Baxter Healthcare Corporation Route 120 & Wilson Road Round Lake, IL 60073, US
Priority Data:
60/163,71405.11.1999US
Title (EN) PROCESS OF MAKING ANISOTROPIC SEMIPERMEABLE MEMBRANE
(FR) PROCEDE DE FABRICATION D'UNE MEMBRANE SEMI-PERMEABLE ANISOTROPE
Abstract:
(EN) A process of making a semipermeable membrane includes charging a polymer solution to a spinneret feed vessel (1) positioned within a large chamber (3) and agitating with a paddle mixer (5). Heat is supplied by heat transfer fluid through coils (7). Polymer solution is discharged through a bottom outlet (9) through a spinneret (11). A gas or liquid core fluid is supplied through a line (13). Spinneret (11) is located above a discharge conduit (15) which extends below the surface of a quenching bath (17) contained within a quench tank (19), which also contains immersed takeup rolls (21, 23).
(FR) L'invention concerne un procédé de fabrication d'une membrane semi-perméable qui consiste à verser une solution polymère dans une cuve à filière (1) placée dans une grande chambre (3), puis à la remuer à l'aide d'un mélangeur à pâles (5). Un fluide de transfert de chaleur circulant dans les bobines (7) produit de la chaleur. La solution polymère est ensuite versée dans un organe de vidange par le bas (9), à travers une filière (11). Un fluide central liquide ou gazeux circule dans une ligne (13). La filière (11) est placée au-dessus d'un conduit de vidange (15) qui passe sous la surface d'un bain de trempe (17) à l'intérieur d'un réservoir de trempe (19). Ce réservoir contient également des rouleaux d'enroulement immergés (21, 23).
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Designated States: AU, CA, JP
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
Publication Language: English (EN)
Filing Language: English (EN)