Title:
METHOD FOR MANUFACTURING SULFONE POLYMER MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2014/096071
Kind Code:
A1
Abstract:
The invention pertains to a method for manufacturing a sulfone polymer membrane comprising the steps of: (i) preparing a sulfone polymer solution [solution (SP)] comprising: - at least one sulfone polymer [polymer (P)]; a solvent mixture [mixture (M)] comprising: at least one solvent selected from the group consisting of diesters of formula (Ide) and ester-amide of formula (lea), and optionally comprising at least one diamide of formula (Ida): R1-OOC-Ade-COO-R2 (lde); R1-OOC-Aea-CO-NR3R4 (lea); R5R6N-OC-Ada-CO-NR5R6 (lda), wherein: R1 and R2, equal to or different from each other, are independently selected from the group consisting of C1-C20 hydrocarbon groups; R3, R4, R5 and R6 equal to or different from each other and at each occurrence, are independently selected from the group consisting of hydrogen, C1-C36 hydrocarbon groups, possibly substituted, being understood that R3 and R4 might be part of a cyclic moiety including the nitrogen atom to which they are bound, said cyclic moiety being possibly substituted and/or possibly comprising one or more than one additional heteroatom, and mixtures thereof; Ade, Aea, and Ada equal to or different from each other, are independently a linear or branched divalent alkylene group, and optionally dimethylsulfoxide (DMSO); (ii) processing said solution (SP) into a film; (iii) immersing said film in a non-solvent bath.
Inventors:
MOORE THEODORE (US)
CHEN HONG (US)
BOURDETTE ARNAUD (FR)
CHEN HONG (US)
BOURDETTE ARNAUD (FR)
Application Number:
PCT/EP2013/077194
Publication Date:
June 26, 2014
Filing Date:
December 18, 2013
Export Citation:
Assignee:
SOLVAY (BE)
International Classes:
B01D67/00; C08J5/22; B01D71/68
Domestic Patent References:
| WO2005082500A2 | 2005-09-09 | |||
| WO2012079231A1 | 2012-06-21 | |||
| WO2011154661A1 | 2011-12-15 |
Foreign References:
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Other References:
"Use of blends of the new diester Rhodiasolv IRIS and dimethyl sulphoxide(DMSO) in order to replace solvents with bad HSE profiles such as N-methylpyrrolidone (NMP), dimethyl formamide (DMF), dimethyl acetamide (DMAC) invarious applications", INTERNET CITATION, 7 January 2011 (2011-01-07), pages 1 - 6, XP002683025, Retrieved from the Internet [retrieved on 20120907]
H. STRATHMANN: "Ullmann's Encyclopedia of Industrial Chemistry", JOHN WILEY & SONS, INC., article "Membranes and Membrane Separation Processes"
H. STRATHMANN: "Ullmann's Encyclopedia of Industrial Chemistry", JOHN WILEY & SONS, INC., article "Membranes and Membrane Separation Processes"
Attorney, Agent or Firm:
BENVENUTI, Federica et al. (310, Bruxelles, BE)
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