Title:
COMPOSITION AND METHOD FOR MANUFACTURING SULFONE POLYMER MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2017/157933
Kind Code:
A1
Abstract:
The invention pertains to a polyaryl ether sulfone polymer solution [solution (SP)] comprising: - at least one sulfone polymer [polymer (PSI)] having recurring units, wherein more than 50 % moles, with respect to all the recurring units of polymer (PSI), are recurring units (RPSI) selected from the group consisting of those of formulae (RPSI-1) and (RPSI-2) herein below : (RPSI-1) (RPSI-2) wherein : - each of E', equal to or different from each other and at each occurrence, is selected from the group consisting of those of formulae (E'-1) to (E'-3): (E'-I) (E'-II) (E'-III) - each R' is independently selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium; and - j' is zero or an integer of 1 to 4; is a bond or a divalent group optionally comprising one or more than one heteroatom; preferably T is selected from the group consisting of a bond, -CH2-, -C(O)-, -C(CH3)2-, -C(CF3)2-, -C(=CCI2)-, -C(CH3)(CH2CH2COOH)-, and a group of formula : (A) - at least one polar organic solvent [solvent (S)]; and - at least one mixture of polyhydroxyl aliphatic alcohols having from 1 to 6 carbon atoms or derivatives thereof [mixture (PHA)], said mixture (PHA) comprising at least one ethylene glycol compound [compound (EthyGly)] and at least one glycerol compound [compound (Gly)], to its use for manufacturing membranes, and to membranes obtained therefrom.
Inventors:
DI NICOLO' EMANUELE (IT)
CAMPANELLI PASQUALE (IT)
TAYLOR NARMANDAKH (US)
CAMPANELLI PASQUALE (IT)
TAYLOR NARMANDAKH (US)
Application Number:
PCT/EP2017/055984
Publication Date:
September 21, 2017
Filing Date:
March 14, 2017
Export Citation:
Assignee:
SOLVAY SPECIALTY POLYMERS IT (IT)
International Classes:
C08J5/22; B01D71/68; C08G75/23; C08J5/18
Domestic Patent References:
| WO2015032847A1 | 2015-03-12 | |||
| WO2014072473A2 | 2014-05-15 |
Foreign References:
| US4286015A | 1981-08-25 | |||
| US8222342B2 | 2012-07-17 | |||
| EP0086365A1 | 1983-08-24 | |||
| US4208508A | 1980-06-17 |
Other References:
H. KRICHELDORF; M. AL MASRI, J. POLYMER SCI., PTA: POLYMER CHEMISTRY, vol. 33, 1995, pages 2667 - 2671
Attorney, Agent or Firm:
BENVENUTI, Federica (310, 1120 BRUXELLES, BE)
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