| 摘要 |
A solution polymerization process comprising contacting under polymerization conditions propylene and at least ethylene or an alpha olefin of formula CH2=CHT wherein T is a C2-C20 alkyl radical, in the presence of a catalyst system obtainable by contacting: b) at least a metallocene compound of formula (I) b) alumoxane or a compound capable of forming an alkyl metallocene cation; and optionally c) an organo aluminum compound; wherein the groups R1R4, L, M and W are described in the text. ® KIPO & WIPO 2008 |
