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1. (WO2006019652) METHOD OF PURIFYING A DISPERSION OF IONIC FLUOROPOLYMER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/019652    International Application No.:    PCT/US2005/024415
Publication Date: 23.02.2006 International Filing Date: 11.07.2005
IPC:
C08F 14/18 (2006.01), C08F 214/18 (2006.01)
Applicants: 3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center, Post Office Box 33427, Saint Paul, Minnesota 55133-3427 (US)
Inventors: HINTZER, Klaus; (DE).
LOCHHAAS, Kai H.,; (DE).
ZEIF, Tanja; (DE).
HAMROCK, Steven J.,; (US).
FREEMYER, H. Todd; (US)
Agent: WRIGHT, Bradford B.,; 3M Center, Office of Intellectual Property Counsel, Post Office Box 33427, Saint Paul, Minnesota 55133-3427 (US)
Priority Data:
10/894,090 19.07.2004 US
Title (EN) METHOD OF PURIFYING A DISPERSION OF IONIC FLUOROPOLYMER
(FR) METHODE DE PURIFICATION D'UNE EMULSION DE FLUOROPOLYMERES IONIQUES
Abstract: front page image
(EN)Anionic species are removed from aqueous dispersions of ionic fluoropolymers using anion exchange resins. In some embodiments, cationic species are also removed using cation exchange resins.
(FR)La présente invention décrit une méthode de séparation des espèces anioniques d'émulsions aqueuses de fluoropolymères ioniques, en utilisant des résines échangeuses d'anions. Dans certains modes de réalisation de l'invention, des espèces cationiques sont également séparées de l'émulsion en utilisant des résines échangeuses de cations.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, 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)