UY24834A1 - SEMI-PERMEABLE POLYSULPHONE CAST YARN MEMBRANES AND METHODS TO PREPARE THEM.- - Google Patents
SEMI-PERMEABLE POLYSULPHONE CAST YARN MEMBRANES AND METHODS TO PREPARE THEM.-Info
- Publication number
- UY24834A1 UY24834A1 UY24834A UY24834A UY24834A1 UY 24834 A1 UY24834 A1 UY 24834A1 UY 24834 A UY24834 A UY 24834A UY 24834 A UY24834 A UY 24834A UY 24834 A1 UY24834 A1 UY 24834A1
- Authority
- UY
- Uruguay
- Prior art keywords
- compound
- composition
- polysulfone
- permeable
- semi
- Prior art date
Links
Abstract
Se describe una composición útil para preparar membranas polisulfonadas semipermeables, la composición comprende una mezcla de: - un compuesto polisulfonado; - un solvente para el compuesto; y - un antisolvente para el compuesto polisulfonado. Además, se describe un proceso para preparar membranas semipermeables de polisulfono, el proceso comprende los siguientes pasos: (a) formando una composición que incluye un compuesto de polisulfono, un solvente para el compuesto de polisulfono, un antisolvente para el compuesto de polisulfono, el solvente y el antisolvente estando presentes en la composición en un radio suficiente para formar una membrana semipermeable útil para el proceso de separación de líquidos; (b) calentar la composición a una temperatura en donde la composición es un líquido homogéneo; (c) expulsando el líquido homogéneo para formar un extrudado; y (d) templar el formato extrudado para formar la membrana semipermeable. La figura es una micrografía electrónica de una fibra de polisulfono homogénea hueca.A composition useful for preparing semi-permeable polysulfonated membranes is described, the composition comprises a mixture of: - a polysulfonated compound; - a solvent for the compound; and - an antisolvent for the polysulfonated compound. Furthermore, a process for preparing semipermeable polysulfone membranes is described, the process comprises the following steps: (a) forming a composition including a polysulfone compound, a solvent for the polysulfone compound, an antisolvent for the polysulfone compound, the solvent and antisolvent being present in the composition in a radius sufficient to form a semipermeable membrane useful for the liquid separation process; (b) heating the composition to a temperature where the composition is a homogeneous liquid; (c) expelling the homogeneous liquid to form an extrudate; and (d) tempering the extrudate to form the semipermeable membrane. The figure is an electron micrograph of a hollow homogeneous polysulfone fiber.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US77473296A | 1996-12-31 | 1996-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
UY24834A1 true UY24834A1 (en) | 1998-06-24 |
Family
ID=25102106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
UY24834A UY24834A1 (en) | 1996-12-31 | 1997-12-31 | SEMI-PERMEABLE POLYSULPHONE CAST YARN MEMBRANES AND METHODS TO PREPARE THEM.- |
Country Status (5)
Country | Link |
---|---|
AR (1) | AR010393A1 (en) |
MY (1) | MY121638A (en) |
PL (1) | PL334378A1 (en) |
TW (1) | TW416973B (en) |
UY (1) | UY24834A1 (en) |
-
1997
- 1997-12-27 MY MYPI9706340 patent/MY121638A/en unknown
- 1997-12-30 AR ARP970106275 patent/AR010393A1/en active IP Right Grant
- 1997-12-30 PL PL97334378A patent/PL334378A1/en not_active Application Discontinuation
- 1997-12-31 UY UY24834A patent/UY24834A1/en not_active IP Right Cessation
-
1998
- 1998-01-12 TW TW86120088A patent/TW416973B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AR010393A1 (en) | 2000-06-07 |
PL334378A1 (en) | 2000-02-28 |
TW416973B (en) | 2001-01-01 |
MY121638A (en) | 2006-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
VENC | Patent expired |
Effective date: 20171231 |