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1. WO2012153050 - NANOSTRUCTURED MEMBRANES AND USES THEREOF

Publication Number WO/2012/153050
Publication Date 15.11.2012
International Application No. PCT/FR2012/051002
International Filing Date 04.05.2012
IPC
B01D 71/34 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
30Polyalkenyl halides
32containing fluorine atoms
34Polyvinylidene fluoride
B01D 67/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
67Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
G01N 27/333 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
28Electrolytic cell components
30Electrodes, e.g. test electrodes; Half-cells
333Ion-selective electrodes or membranes
C08J 5/22 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
20Manufacture of shaped structures of ion-exchange resins
22Films, membranes or diaphragms
CPC
B01D 2323/34
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2323Details relating to membrane preparation
34Use of radiation
B01D 2325/08
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2325Details relating to properties of membranes
08Patterned membranes
B01D 2325/42
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2325Details relating to properties of membranes
42Ion-exchange membranes
B01D 61/44
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
42Electrodialysis; Electro-osmosis ; Electro-ultrafiltration
44Ion-selective electrodialysis
B01D 67/0032
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
67Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
0002Organic membrane formation
0023by inducing porosity into non porous precursor membranes
0032by elimination of segments of the precurdor, e.g. nucleation-track membranes, lithography or laser methods
B01D 71/34
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
30Polyalkenyl halides
32containing fluorine atoms
34Polyvinylidene fluoride
Applicants
  • COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES [FR]/[FR] (AllExceptUS)
  • ECOLE POLYTECHNIQUE [FR]/[FR] (AllExceptUS)
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE [FR]/[FR] (AllExceptUS)
  • CLOCHARD, Marie-Claude [FR]/[FR] (UsOnly)
  • WADE, Travis [US]/[FR] (UsOnly)
  • BESSBOUSSE, Haad [MA]/[FR] (UsOnly)
  • GALLINO, Enrico [IT]/[FR] (UsOnly)
Inventors
  • CLOCHARD, Marie-Claude
  • WADE, Travis
  • BESSBOUSSE, Haad
  • GALLINO, Enrico
Agents
  • DIAS, Sonia
Priority Data
11 5397709.05.2011FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) NANOSTRUCTURED MEMBRANES AND USES THEREOF
(FR) MEMBRANES NANOSTRUCTUREES ET LEURS UTILISATIONS
Abstract
(EN) The invention relates to a method for producing a nanostructured membrane, comprising the steps of: i) irradiating a polymer substrate with heavy ions such that latent ion tracks are formed through the entire thickness (e) of the polymer substrate; and ii) partially etching said latent tracks so as to obtain a nanostructured membrane comprising nanopores that are less deep (p) than the thickness (e) of the polymer substrate as well as unetched residual latent tracks.
(FR) La présente invention concerne un procédé de préparation d'une membrane nanostructurée, ledit procédé comprenant les étapes de : i) Irradiation aux ions lourds d'un substrat polymère, ce par quoi des traces latentes du passage d'ions à travers toute l'épaisseur (e) du substrat polymère sont formées; et ii) Révélation chimique partielle desdites traces latentes, ce par quoi on obtient une membrane nanostructurée comprenant : - des nanopores dont la profondeur (p) est inférieure à l'épaisseur du substrat polymère (e); - des traces latentes résiduelles non révélées.
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