Title:
Method for manufacturing sulfone polymer membrane
Document Type and Number:
Japanese Patent JP6309537
Kind Code:
B2
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-AeaCO—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
Chen, Hong
Bourdette, Arnaud
Chen, Hong
Bourdette, Arnaud
Application Number:
JP2015548500A
Publication Date:
April 11, 2018
Filing Date:
December 18, 2013
Export Citation:
Assignee:
Solvay (Societe Anonym)
International Classes:
C08J9/28; B01D71/68; C08J5/18
Domestic Patent References:
| JP54016378A | ||||
| JP2005523146A |
Attorney, Agent or Firm:
Sonoda/Kobayashi Patent Business Corporation