Patent ID: 11952440
Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 4:
5. Process according to claim 4, wherein in the metallocene complex according to formula III, R4 with R5 and R4′ and R5′ are fused to form a complex according to formula IV:, wherein, in formula IV:
R2 is a bridging moiety containing at least one sp2 hybridised carbon atom;
R4, R4′, R7 and R7′ are hydrogen or a moiety comprising 1-10 carbon atoms, wherein R4, R4′, R7 and R7′ are the same;
R5, R5′, R6 and R6′ are hydrogen or a moiety comprising 1-10 carbon atoms, wherein R5, R5′, R6 and R6′ are the same; and
Z is ZrX2, HfX2, or TiX2, wherein X is a halogen, an alkyl, an aryl or an aralkyl.