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1. (WO2000026221) PREPARATION OF TITANIUM(II) OR ZIRCONIUM(II) COMPLEXES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2000/026221    International Application No.:    PCT/US1999/022359
Publication Date: 11.05.2000 International Filing Date: 28.09.1999
Chapter 2 Demand Filed:    24.03.2000    
IPC:
C07F 17/00 (2006.01)
Applicants: THE DOW CHEMICAL COMPANY [US/US]; 2030 Dow Center Midland, MI 48674 (US)
Inventors: ROSEN, Robert, K.; (US)
Agent: DELINE, Douglas, N.; Patent Dept. 2030 Dow Center Midland, MI 48674 (US)
Priority Data:
60/106,162 29.10.1998 US
Title (EN) PREPARATION OF TITANIUM(II) OR ZIRCONIUM(II) COMPLEXES
(FR) PREPARATION DE COMPLEXES DE TITANE (II) OU DE ZIRCONIUM(II)
Abstract: front page image
(EN)Titanium and zirconium complexes comprising one or more, cyclic, delocalized $g(p)-bonded ligand groups wherein the metal of said complexes is in the +2 formal oxidation state are prepared in high yield and purity by reaction of the corresponding titanium or zirconium halides in the +3 or +4 oxidation state with a di(C¿1-20?alkyl) magnesium reagent. The complexes are used as catalyst components for olefin polymerization catalysts.
(FR)On prépare en grande quantité des complexes de titane et de zirconium de grande pureté, comprenant au moins un groupe ligand cyclique, délocalisé et à liaison $g(p), le métal desdits complexes se trouvant à l'état d'oxydation formel +2, en mettant des halogénures de titane ou de zirconium à l'état d'oxydation +3 ou +4, avec un réactif au magnésium de di(alkyleC¿1?-C¿20?). Lesdits complexes sont utilisés comme composants de catalyseurs pour les catalyseurs de polymérisation d'oléfines.
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, 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, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)