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
Application number
UY24834A
Other languages
Spanish (es)
Inventor
B Meluch Timothy
Chiang Chung-Yuan
Hamid Jaanine
Thanh Nguyen
Kees Ruzius
K Silva Lalith
George Washington
Original Assignee
Althin Medical Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Althin Medical Inc filed Critical Althin Medical Inc
Publication of UY24834A1 publication Critical patent/UY24834A1/en

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.

UY24834A 1996-12-31 1997-12-31 SEMI-PERMEABLE POLYSULPHONE CAST YARN MEMBRANES AND METHODS TO PREPARE THEM.- UY24834A1 (en)

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)

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