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Machine translation
1. (WO2003000390) MEMBRANES AND THEIR MANUFACTURE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2003/000390 International Application No.: PCT/GB2002/002942
Publication Date: 03.01.2003 International Filing Date: 26.06.2002
IPC:
B01D 53/22 (2006.01) ,B01D 67/00 (2006.01) ,B01D 71/52 (2006.01)
Applicants: BROWN, Philip, J.[GB/US]; US (UsOnly)
VICTREX MANUFACTURING LIMITED[GB/GB]; Victrex Technology Centre Hillhouse International Tornton Cleveleys Lancashire FY5 4QD, GB (AllExceptUS)
Inventors: BROWN, Philip, J.; US
Agent: NEILL, Alastair, William ; Appleyard Lees 15 Clare Road Halifax HX1 2HY, GB
Priority Data:
0115562.126.06.2001GB
0115674.427.06.2001GB
Title (EN) MEMBRANES AND THEIR MANUFACTURE
(FR) MEMBRANES ET FABRICATION ASSOCIEE
Abstract:
(EN) Membranes comprising an aromatic ether ketone polymer (e.g. polyetherketone) in sheet or hollow fibre form are made by preparing at least a 12wt % solution of the polymer in a solvent which is chemically inert to the polymer (e.g. concentrated sulphuric acid); forming a film of the solution in sheet or hollow form; and contacting the film with a non-solvent (e.g. more dilute sulphuric acid or acetic acid) thereby to precipitate the film.
(FR) L'invention concerne des membranes comprenant un polymère éther cétone aromatique (par ex. un polyéther cétone) sous forme de feuille ou de fibre creuse. Ces membranes sont fabriquées selon les opérations suivantes : préparer au moins une solution de 12 % en poids du polymère dans un solvant chimiquement inerte relativement au polymère (par ex. de l'acide sulfurique concentré); former avec la solution un film en feuille ou de forme creuse; mettre en contact le film avec un non solvant (par ex. plus d'acide sulfurique dilué ou d'acide acétique dilué) pour précipiter le film.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)