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1. (WO2001023443) MANUFACTURE OF POLYETHYLENES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2001/023443    International Application No.:    PCT/US2000/026643
Publication Date: 05.04.2001 International Filing Date: 28.09.2000
Chapter 2 Demand Filed:    12.04.2001    
IPC:
C08F 4/659 (2006.01), C08F 4/6592 (2006.01), C08F 10/02 (2006.01), C08F 110/02 (2006.01), C08L 23/08 (2006.01)
Applicants: E.I. DU PONT DE NEMOURS AND COMPANY [US/US]; 1007 Market Street, Wilmington, DE 19898 (US) (For All Designated States Except US).
WANG, Lin [US/US]; (US) (For US Only).
SPINU, Maria [US/US]; (US) (For US Only).
CITRON, Joel, David [US/US]; (US) (For US Only)
Inventors: WANG, Lin; (US).
SPINU, Maria; (US).
CITRON, Joel, David; (US)
Agent: LERMAN, Bart, E.; E.I. Du Pont de Nemours and Company, Legal Patent Records Center, 1007 Market Street, Wilmington, DE 19898 (US)
Priority Data:
60/156,588 29.09.1999 US
Title (EN) MANUFACTURE OF POLYETHYLENES
(FR) FABRICATION DE POLYETHYLENES
Abstract: front page image
(EN)Blends of two or more polyethylenes are made by reacting ethylene with an oligomerization catalyst that forms $g(a)-olefins, and two polymerization catalysts, one of which under the process conditions copolymerizes ethylene and $g(a)-olefins, and the other of which under process conditions does not readily copolymerize ethylene and $g(a)-olefins. The blends may have improved physical properties and/or processing characteristics.
(FR)L'invention concerne des mélanges d'au moins deux polyéthylènes, produits par réaction de l'éthylène avec un catalyseur d'oligomérisation formant des $g(a)-oléfines, et deux catalyseurs de polymérisation, l'un d'entre eux copolymérisant l'éthylène et des $g(a)-oléfines sous les conditions de processus, et l'autre ne copolymérisant pas immédiatement l'éthylène et des $g(a)-oléfines sous les conditions de processus. Lesdits mélanges peuvent présenter des propriétés physiques améliorées et/ou des caractéristiques de traitement.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, 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, UA, UG, US, UZ, VN, YU, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, 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)