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1. (WO2009137888) POLYMER MICROGEL BEADS AND PREPARATIVE METHOD THEREOF
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/137888    International Application No.:    PCT/AU2009/000618
Publication Date: 19.11.2009 International Filing Date: 15.05.2009
IPC:
C08K 3/10 (2006.01), A61K 41/00 (2006.01), A61K 47/02 (2006.01), A61N 2/10 (2006.01), C08F 2/32 (2006.01), C08F 2/44 (2006.01), C08F 20/06 (2006.01)
Applicants: THE UNIVERSITY OF SYDNEY [AU/AU]; Sydney , New South Wales 2006 (AU) (For All Designated States Except US).
HAWKETT, Brian Stanley [AU/AU]; (AU) (For US Only).
JAIN, Nirmesh [IN/AU]; (AU) (For US Only)
Inventors: HAWKETT, Brian Stanley; (AU).
JAIN, Nirmesh; (AU)
Agent: TOZER, Ramon Dean; (AU)
Priority Data:
2008902430 16.05.2008 AU
Title (EN) POLYMER MICROGEL BEADS AND PREPARATIVE METHOD THEREOF
(FR) BILLES POLYMÈRES À BASE DE MICROGEL ET LEUR PROCÉDÉ DE PRÉPARATION
Abstract: front page image
(EN)The present invention relates to polymer microgel beads having a polymeric matrix with nanomagnetic particles dispersed substantially uniformly therethrough, wherein a steric stabiliser is associated with the particles, the steric stabiliser being a polymeric material that (i) forms at least part of the polymeric matrix of the beads, and (ii) comprises a steric stabilising polymeric segment and an anchoring polymeric segment, wherein the steric stabilising polymeric segment is different from the anchoring polymeric segment, and wherein the anchoring polymeric segment has an affinity toward the surface of the nanomagnetic particles and secures the stabiliser to the particles.
(FR)La présente invention concerne des billes polymères à base de microgel qui ont une matrice polymère dans laquelle des particules nanomagnétiques sont dispersées de manière sensiblement uniforme. Selon l'invention, un agent stabilisant stérique est associé aux particules. L'agent stabilisant stérique est une matière polymère (i) qui forme au moins partie de la matrice polymère des billes, et (ii) qui comprend un segment polymère stabilisant stérique et un segment polymère d'ancrage, le segment polymère stabilisant stérique étant différent du segment polymère d'ancrage, et le segment polymère d'ancrage présentant une affinité vis-à-vis de la surface des particules nanomagnétiques et fixant l'agent stabilisant aux particules.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, 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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, 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)