Process for stabilising polyolefins

Details Process for stabilising polyolefins Process for stabilising polyolefins

C - Chemistry, Metallurgy

08

L

400/9420

C08L 57/00 (2006.01) C08J 3/22 (2006.01) C08K 5/00 (2006.01) C08K 9/12 (2006.01)

Patent

CA 2014005

A process for stabilising olefin polymers having a mean particle diameter of from 1 to 5 mm that have been polymerised on carrier catalysts, which comprises treating the polyolefins with a stabiliser mixture prepared by heating to from 120 to 260°C a mixture containing a) at least one carrier and/or b) at least one stabiliser that melts at from 20 to 120°C and c) at least one stabiliser that melts at from 120 to 260°C, and then cooling said mixture until solidified, components b) and c) being different.

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