Catalyst for biomodal molecular weight distribution ethylene...

Details Catalyst for biomodal molecular weight distribution ethylene... Catalyst for biomodal molecular weight distribution ethylene...

C - Chemistry, Metallurgy

08

F

C08F 4/602 (2006.01) B01J 31/12 (2006.01) B01J 31/14 (2006.01) B01J 31/22 (2006.01) C08F 4/02 (2006.01) C08F 4/606 (2006.01) C08F 4/642 (2006.01) C08F 4/646 (2006.01) C08F 10/00 (2006.01) C08F 10/02 (2006.01) C08F 4/619 (2006.01)

Patent

CA 2204265

The interaction of silica, previously calcined at 600 ~C, with dibutylmagnesium (DBM), 1-butanol and titanium tetrachloride and a solution of methylalumoxane (MAO) and (BuCp)2ZrCl2 provides a catalyst that, in the absence of a trialkylaluminum (AlR3) cocatalyst, produces polyethylene with a bimodal MWD.

L'interaction d'une silice préalablement calcinée à 600 ~C avec du dibutylmagnésium (DBM), du 1-butanol, du tétrachlorure de titane et une solution de méthylalumoxane et de (BuCp)¿2?ZrCl¿2?, fournit un catalyseur qui, en absence du co-catalyseur trialkylaluminium (AlR¿3?) produit un polyéthylène avec une distribution bimodale du poids moléculaire.

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