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A PROCESS FOR THE TERMINATION AND START-UP OF POLYMERIZATION

IP.com Disclosure Number: IPCOM000019485D
Publication Date: 2003-Sep-16

Publishing Venue

The IP.com Prior Art Database

Abstract

A process for the termination and start-up of polymerization comprising (i) contacting one or more alpha-olefins, in the gas phase, under polymerization conditions, with a chromium, vanadium or a titanium based catalyst system; (ii) introducing an ether in a sufficient amount to essentially terminate the polymerization; and (iii) optionally, thereafter, introducing an aluminum alkyl in an amount sufficient to start up the terminated polymerization.