Use of alkylaluminum compounds and hydroxyl- containing...

Details Use of alkylaluminum compounds and hydroxyl- containing... Use of alkylaluminum compounds and hydroxyl- containing...

C - Chemistry, Metallurgy

08

F

402/613, 402/633

C08F 10/02 (2006.01) C08F 4/62 (2006.01)

Patent

CA 1232399

- 31 - ABSTRACT OF THE DISCLOSURE A method for smoothly and reliably initia- ting polymerization of ethylene with a supported chromium oxide catalyst, with smaller amounts of catalyst and in substantially shorter periods of time then heretofore required, by adding an alkylaluminum compound and a hydroxyl-containing compound to the reactor of a polymerization reaction system prior to the commencement of polymerization and subjecting said alkylaluminum compound and hydroxyl-containing compound to suitable conditions of temperature and pressure for a time sufficient for said alkylaluminum compound to react completely with the moisture present in said reactor and said hydroxyl-containing compound.

458025

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