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1. (WO2003078500) POLYALKYLENE GRAFT POLYMERS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2003/078500 International Application No.: PCT/US2003/007697
Publication Date: 25.09.2003 International Filing Date: 11.03.2003
Chapter 2 Demand Filed: 09.10.2003
IPC:
C08F 283/06 (2006.01) ,C08L 71/02 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
283
Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G117
06
on to polyethers, polyoxymethylenes or polyacetals
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
71
Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
02
Polyalkylene oxides
Applicants:
WATSON PHARMACEUTICALS, INC. [US/US]; 311 Bonnie Circle Corona, CA 92880, US (AllExceptUS)
ANDERSON, Christopher, G. [US/US]; VU
Inventors:
ANDERSON, Christopher, G.; VU
Agent:
KONSKI, Antoinette, F.; Bingham McCutchen LLP Three Embarcadero Center Suite 1800 San Francisco, CA 94111-4067, US
Priority Data:
60/363,47312.03.2002US
Title (EN) POLYALKYLENE GRAFT POLYMERS
(FR) POLYMERES GREFFES A BASE DE POLYALKYLENE
Abstract:
(EN) The present invention provides substantially pure, pharmaceutically acceptable polyaklylene graft polymers and processes for obtaining them. Liquid polyalkylene oxide, from about ten to fifteen equivalents of an acrylic monomer and a suitable catalyst are mixed in the absence of oxygen to form a reaction mixture. The substantially pure polymers are collected from the reaction mix. The polymers can be further purified. Further provided is a process to isolate or collect large molecular weight polymers from an aqueous/organic solvent system.
(FR) La présente invention concerne des polymères greffés à base de polyalkylène, sensiblement purs, de qualité pharmaceutique, ainsi que leurs procédés de fabrication. Ces procédés consistent à mélanger un oxyde de polyalkylène liquide avec dix à quinze parties équivalentes environ d'un monomère acrylique et un catalyseur adapté, en l'absence d'oxygène, pour former un mélange réactionnel. Le procédé consiste ensuite à récupérer les polymères sensiblement pures à partir du mélange réactionnel. Les polymères obtenus peuvent être davantage purifiés. L'invention concerne également un procédé servant à isoler ou à récupérer des polymères de masse moléculaire élevée à partir d'un système eau-solvant organique.
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, 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 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, IT, LU, MC, NL, 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)
Also published as:
AU2003220228